table of contents - elhvb turb… · intro expansion slots sfive 32-bit pci bus master slots....

Table of Contents1. Introduction.............................................................................. 4

Overview............................................................................4Icons...................................................................................5Hardware Specifications/Features.....................................6Software Specifications.....................................................8Environment...................................................................... 8Technical Support..............................................................8Returning Merchandise for Service...................................9

2. Board Installation.....................................................................10Unpacking..........................................................................10Installation......................................................................... 11

3. S1576S Onboard Resource Settings........................................12Quick Reference for Jumpers............................................ 12S1576S Board Layout........................................................14CMOS RTC....................................................................... 18Soft Power Connector........................................................18Speaker Connector Installation..........................................19Hardware Reset Switch Connector Installation.................19Flash EEPROM................................................................. 19Hardware CMOS & Password Reset.................................19DRAM Installation............................................................ 20CPU Installation................................................................ 21Cache Memory...................................................................22Peripheral Device Installation........................................... 22Connecting the Power Supply........................................... 22

4. BIOS Configuration................................................................. 24Entering Setup................................................................... 24Control Keys......................................................................25Getting Help...................................................................... 25The Main Menu.................................................................25Standard CMOS Setup Menu............................................ 28BIOS Features Setup......................................................... 32Chipset Features Setup...................................................... 36Power Management Setup.................................................40PnP/PCI Configuration......................................................43Load BIOS Defaults.......................................................... 46

Load Setup Defaults.......................................................... 47Integrated Peripherals........................................................48Supervisor Password and User Password..........................51IDE HDD Auto Detection................................................. 52Save & Exit Setup............................................................. 53Exit Without Saving.......................................................... 54

5. Flash Writer Utility.................................................................. 56Flash Memory Writer.........................................................56The Flash Memory Writer Utility Screen..........................58

6. System Resources......................................................................60Timer and DMA Channel Maps........................................ 60Interrupt Map.....................................................................61POST Messages.................................................................61POST Codes...................................................................... 65

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Chapter 1

Overview

The S1576S is a quality, high performance mainboard designed forIntel Pentium microprocessors. This mainboard utilizes the Intel430TX chipset and can support CPU speeds of 75MHz through233MHz. The S1576S will also support the Cyrix M1 (6x86) and M2(6x86MX) CPU’s, the AMD K5 and K6 CPU’s, and the Intel multime-dia Pentium P55C and P54CTB (MMX Overdrive) CPU’s.

The S1576S’s PCI Local Bus provides high performance capabilitiesthat are ideal for a wide range of demanding applications such asCAD, CAM, CAE, networking, multi-user environments, databasemanagement, desktop publishing, image processing and 3D animation.

This integrated system board achieves high reliability with numerousfeatures and yet is small enough to be supported in an ATX form-factor. Some of the features included are onboard dual channel PCIPIO, BUS Master IDE and UltraDMA/33, onboard floppy controller,onboard high speed I/O, and support for pipeline-burst SRAM.

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Introduction

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Flexibility and expandability have been designed into the S1576S.With I/O and drive controller support built onboard, the five PCI andthree ISA slots (one ISA and one PCI as a shared slot) are free fornumerous add-on expansion cards.

Remember to take a look at TYAN Computer’s web site located athttp://www.tyan.com. There you can find information on all ofTYAN’s products along with FAQs, distributors list, drivers andCMOS setting explanations. If you have a tech support question pleasecontact us at www.tyan.com.

Icons

In order to help you navigate this manual and set up your system, wehave added several icons to our format.

This icon alerts you to particularly important details regard-ing the setup or maintenance of your system. This icon often

appears next to information that may keep you from damaging yourboard or system. While we will often point out the most vital para-graphs in a chapter, you should always read every word in the text.Failing to do so can lead to exasperation and expense.

Wherever possible, we have included step-by-step instruc-tions for setting up your system, which are indicated by this

icon. However, it is in your best interest to read an entire section (andperhaps the entire manual) before you begin to fiddle with yourmotherboard.

While we have alerted you to potential dangers in severalplaces in this manual with this icon, these warnings should

not be regarded as the whole of your safety regimen. Never forget thatcomputers are electrical devices, and are capable of delivering a burnor shock. Prevent damage to yourself and to your board: always ensurethat your system is turned off and unplugged whenever you are work-ing with it, and that you are equipped with a static safety device.

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Chapter 1

Hardware Specifications/Features

Processor Information sZIF Socket #7.s50-83MHz BUS support (seedisclaimer on page 18).sPentium/Pentium MMX 75-233MHz.sAMD K5/K6 75MHz-233MHz.sCyrix M1 6x86 P120+ toP200+ (see disclaimer on page 18).sCyrix M2 6x86MX support built-in(see disclaimer on page 18).

Chipset Information sIntel 430TX PCIset.sFifth generation Pentium chipset.

Voltage and Power sDesign incoporates ATX powerInformation supply connector.

s12 V power source for DC fanonboard.s3.3V or 5.0V DRAM support.sSwitching Power Supply onboard.

Main Memory sUp to 256MB on board.sThree 168-pin DIMM sockets.sEDO or FPM SIMM support.sEDO DIMM and SDRAM support.

System Management sWake-on LAN connector.sOptional LM75 CPU temperature-sensing chip.sOptional National LM78 thermal, fanand heat monitoring chip.sOptional Intel LANDesk Clientmanager software, and/or IntelLANDesk Server manager software(with LM78 installed).

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Expansion Slots sFive 32-bit PCI Bus Master slots.sThree 16-bit ISA slots.sOne shared, seven usable.

Physical Dimensions sATX design.s8.3 x 12 inches.

BIOS Information sAward Plug and Play flash BIOS.sDeep Green and Energy Starcompliant.sACPI, Year 2000, and PC97/98compliant.sSoft power-down, multiple bootoptions.sWin98 Ready, DMI 2.0 compliant.sSupport for easy BIOS upgrades withflash EEPROM chip.

Disk Drive & System I/O sTwo PCI Bus Mastering EIDEchannels.sSupports EIDE CD-ROMs.sPIO Mode 3 & 4 (up to 17MB/secDTR).sUltraDMA33 Bus Mastering Mode(up to 33MB/sec DTR).sTwo floppy drives (up to 2.88MB).sTwo ATX serial ports (16550UARTs).sOne ATX ECP/EPP parallel port.sOne IR (InfraRed) I/O interface port.sTwo USB rev 1.2 (universal serialBUS) ports.sOne ATX PS/2 mouse portconnector.sOne ATX PS/2 keyboard connector.

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Chapter 1

Ensoniq Audio PCI s32-bit sound with built-in wavetable(optional) synthesis.

Software Specifications

OS sOperates with MS-DOS, Windows3.x, Windows for WorkGroup 3.x,Windows 95, Windows NT, OS/2,Novell Netware, Solaris, and SCOUnix.

Information presented in this publication has been carefully checkedfor reliability. However, no responsibility is assumed for inaccuracies.The information contained in this document is subject to changewithout notice.

Technical Support

If a problem arises with your system, you should first turn to yourdealer for help. Your system has most likely been configured by them,and so they should have the best idea of what hardware and softwareyour system contains. Hence, they should be able to be of the mostassistance. Further, if you purchased your system from a dealer near toyou, you can actually bring your system in to them to have it serviced,instead of fooling with it yourself (which can have expensive conse-quences). If your dealer is unable to assist you:Try our web page – http:// www.tyan.com,or user newsgroup – alt.comp.periphs.mainboard.tyan.

Returning Merchandise for Service

During the warranty period, contact your distributor or system vendorFIRST for any product problems. This warranty only covers normalcustomer use and does not cover damages incurred during shipping orfailure due to the alteration, misuse, abuse, or improper maintenance ofproducts.

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For Resellers Only:A receipt or copy of your invoice marked with the date of purchase isrequired before any warranty service can be rendered. You can obtainservice by calling the manufacturer for a Return Merchandise Authori-zation (RMA) number. The RMA number should be prominentlydisplayed on the outside of the shipping carton and the package shouldbe mailed prepaid, or hand-carried to the manufacturer. Shipping andhandling charges will be applied for all orders that must be mailedwhen service is complete.

TrademarksAward BIOS/Flash are trademarks of Award Software International,Inc.Windows is a trademark of Microsoft Corporation.IBM, PC, AT, PS/2 are trademarks of IBM Corporation.INTEL, Pentium are trademarks of Intel Corporation.Titan Turbo S1576S Plus ATX is a trademark of TYAN ComputerCorporation.All other trademarks are the property of their respective companies.

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Chapter 2

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ter 2

Board Installation

Unpacking

The mainboard package should contain the following:• S1576S Mainboard• One IDE 40 pin cable• One 34 pin floppy cable• User’s Manual

The mainboard contains sensitive electric components which can beeasily damaged by static electricity, so the mainboard should be left inits original packaging until it is ready to be installed.

With the power supply plugged in and turned off, touch an unpaintedarea of the system chassis immediately before handling the mainboardor any component. Doing so discharges any static charge your bodymay have acquired.

After opening the mainboard carton, extract the system board-holdingit by its edges-and place it on a grounded anti-static surface, compo-nent side up. Inspect the board for damage. Press down on any of the

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socket ICs if it appears that they are not properly seated (the boardshould still be on an anti-static mat). Do not touch the bottom of theboard.

DO NOT APPLY POWER TO THE BOARD IF IT HAS BEENDAMAGED!

Installation

You are now ready to install your mainboard. The mounting holepattern of the S1576S matches the ATX system board specifications.Your chassis should be that of a standard ATX mainboard form factor.

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Quick References for Jumpers

The following tables will help you set the jumpers for CPU speed, BUSfrequency, and memory voltage, among others. For CPU settings, youmay want to refer first to the more comprehensive chart on page 13. Theminiature motherboard maps will help you locate the jumpers on yourboard. A full-page map of the motherboard can be found on page 14.

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Onboard Resource Settings

BF0-BF2

VC1-VC2 VID1-VID4

FS0-FS2

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*See disclaimer on page 18.^It does not matter how these jumpers are set. For P54C, AMD K5, and Cyrix 6x86CPUs, VC1 and VC2 are set to OFF, making the VID0-VID3 settings, which are onlyactive if VC1 and VC2 are ON, irrelevant. The VID0-VID3 settings for the Cyrix 6x86Lseries will vary. Some of the CPUs in this series are 2.8V, and others are 3.3V. Check theface of the CPU and the CPU Voltage Settings table for the proper settings for thesejumpers.

Jumper Settings by CPU Type

CPU BUS speed& multiplier BF0 BF1 BF2 VID0 VID1 VID2 VID3 FS0 FS1 FS2 VC1 VC2

Intel P54C 75 50MHz x 1.5 OFF OFF OFF ^ ^ ^ ^ ON ON ON OFF OFF

Intel P54C 90 60MHz x 1.5 OFF OFF OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

Intel P54C 100 66MHz x 1.5 OFF OFF OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

Intel P54C 120 60MHz x 2 ON OFF OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

Intel P54C 133 66MHz x 2 ON OFF OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

Intel P54C 150 60MHz x 2.5 ON ON OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

Intel P54C 166 66MHz x 2.5 ON ON OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

Intel P54C 200 66MHz x 3 OFF ON OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

Intel P55C 166 66MHz x 2.5 ON ON OFF OFF OFF OFF ON OFF OFF OFF ON ON

Intel P55C 200 66MHz x 3 OFF ON OFF OFF OFF OFF ON OFF OFF OFF ON ON

Intel P55C 233 66MHz x 3.5 OFF OFF OFF OFF OFF OFF ON OFF OFF OFF ON ON

AMD K5 90 60MHz x 1.5 OFF OFF OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

AMD K5 100 66MHz x 1.5 OFF OFF OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

AMD K5 120 60MHz x 2 ON OFF OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

AMD K5 133 66MHz x 2 ON OFF OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

AMD K5 166 66MHz x 2.5 ON ON OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

AMD K6 166 66MHz x 2.5 ON ON OFF ON OFF OFF ON OFF OFF OFF ON ON

AMD K6 200 66MHz x 3 OFF ON OFF ON OFF OFF ON OFF OFF OFF ON ON

AMD K6 233 66MHz x 3.5 OFF OFF OFF OFF OFF ON ON OFF OFF OFF ON ON

Cyrix PR120+ 6x86 50MHz x 2 ON OFF OFF ^ ^ ^ ^ ON ON ON OFF OFF

Cyrix PR150+ 6x86 60MHz x 2 ON OFF OFF ^ ^ ^ ^ ON OFF OFF OFF OFF

Cyrix PR166+ 6x86 66MHz x 2 ON OFF OFF ^ ^ ^ ^ OFF OFF OFF OFF OFF

*Cyrix PR200+ 6x86 75MHz x 2 ON OFF OFF ^ ^ ^ ^ OFF ON OFF OFF OFF

Cyrix PR150+ 6x86L 60MHz x 2 ON OFF OFF OFF OFF OFF ON ON OFF OFF ON ON

Cyrix PR166+ 6x86L 66MHz x 2 ON OFF OFF OFF OFF OFF ON OFF OFF OFF ON ON

*Cyrix PR200+ 6x86L 75MHz x 2 ON OFF OFF OFF OFF OFF ON OFF ON OFF ON ON

Cyrix PR166+ 6x86MX 60MHz x 2.5 ON ON OFF ON OFF OFF ON ON OFF OFF ON ON

Cyrix PR166+ 6x86MX 66MHz x 2 ON OFF OFF ON OFF OFF ON OFF OFF OFF ON ON

Cyrix PR200+ 6x86MX 66MHz x 2.5 ON ON OFF ON OFF OFF ON OFF OFF OFF ON ON

Cyrix PR200+ 6x86MX 75MHz x 2 ON OFF OFF ON OFF OFF ON OFF ON OFF ON ON

*Cyrix PR233+ 6x86MX 66MHz x 3 OFF ON OFF ON OFF OFF ON OFF OFF OFF ON ON

*Cyrix PR233+ 6x86MX 75MHz x 2.5 ON ON OFF ON OFF OFF ON OFF ON OFF ON ON

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Chapter 3

Map of Jumpers on Motherboard

3 voltbattery

BIOS

ISA slot 3

ISA slot 2

ISA slot 1

Key

boar

dco

ntro

ller

PCI slot 5

PCI slot 4

PCI slot 3

PCI slot 2

PCI slot 1

CPU

DIM

M B

ank 1D

IMM

Bank 0

DIM

M B

ank 2

82439TX

82371AB

SMC

I/O

J8

1

3

13

18

22

24

6

1

Secondary IDE

Primary ID

EFloppy connector

1

1

J19(bottom)J21(top)

USB

J22

J17

J14

Joys

tick

power connector

UM

CU

MC

J21

J251

JP11

CON11

JP21

FAN3

1

FS0 FS1

FS2

1

1 1

1

1

J27

JP22

CDI1

JP23

J26

1

JP15

JP161

FAN11

BF1BF0 BF2

VC1 VC2 DIM52DIM51

DIM31DIM32

FAN2 1

VID

1V

ID0

VID

2V

ID3

SPI1

The following jumpers and connectors are optional, and will only be present ifyour board has the Ensoniq sound chip installed: J26, J27, JP22, JP23, CDI1,and Joystick.

The tiny “1”s next to jumpers of 3 pins or more indicate the position of pin 1for that jumper. Refer to pages 15-17 for the jumper and pin assignments.

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J19 PS/2 mouse

J21 PS/2 keyboard

J17 LPT1

J14

CO

M1

J22

CO

M2

CO

N1 W

ake-on LAN

USB

1 2 3 4 5

J2 (IR) RX GND TX VCC --

CON1 (Wake-on LAN) VCC GND Wake -- --

FAN GND VCCFan

Monitor -- --

Pin Assignments

(-- indicates pin is absent)

BIO

S

82371AB (PIIX 4)

430 TXPipelineBurst Cache

CPU

Tem

perature SensorSu

per

I/O

PCI

ISA

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*For Cyrix settings, please refer to the CPU Voltage table. For all CPUs, please refer to the BUSSettings and CPU Speed Settings tables. VC1 and VC2 should be set to OFF for Pentium non-MMX CPUs, and ON for all other CPUs.^It does not matter how these jumpers are set (see note on page 13).

BUS Settings

JP15 and JP16 Settings

J8 Settings

CPU Model Settings

Chapter 3

BUSFrequency FSO FS1 FS2

50MHz ON ON ON

60MHz ON OFF OFF

66MHz OFF OFF OFF

75MHz OFF ON OFF

83MHz ON OFF ON

1-2 2-3

JP15 COM PORT IR

JP16 COM PORT IR

CPU VID0 VID1 VID2 VID3 VC1 VC2

P54C ^ ^ ^ ^ OFF OFF

P55C OFF OFF OFF ON ON ON

K5 ^ ^ ^ ^ OFF OFF

K6-166 ON OFF OFF ON ON ON

K6-200 ON OFF OFF ON ON ON

K6-233 OFF OFF ON ON ON ON

Cyrix 6x86 ^ ^ ^ ^ OFF OFF

Cyrix 6x86L * * * * ON ON

Cyrix 6x86MX * * * * ON ON

*Notes: Please ignore the BUS speedsettings printed on the motherboard.Please see the warning regarding 75MHzand 83MHz speeds on page 18.

FS0-FS2

JP15-JP16

Pins 1-2 3-4 6-11 13-14 15-16 18-20 22-23 24-27

FunctionP W R

ON/OFFEXTSM1

(sleep) IRPrimary

IDESecondary

IDE PWR LED RST SW SPK

Assignment 1=VCC2=GND

3=GND4=sleep

6=VCC8=IR RX9=GND

10=IR TX11=VCC

13=-14=+

15=-16=+

18=LED+20=GND

22=GND23=reset

24=VCC25=GND

27=Speaker

J8

VID

1-VID

4

17

DIMMVCC

DIMM31DIMM32

DIMM51DIMM52

3.3V ON OFF

5V OFF ON

DIMM Memory Voltage Settings

BIOS Memory Voltage Settings

CPU Multipliers

CPU Voltage Settings

JP1 Settings

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CPUMult. x1.5 x2 x2.5 x3

BF0 OFF ON ON OFF

BF1 OFF OFF ON ON

BF2 OFF OFF OFF OFF

CPU VCC 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V

VID0 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON

VID1 OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON

VID2 OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF ON ON ON ON

VID3 OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON ON ON

BIOSVCC JP2

5V 1-2

12V 2-3

JP1

BATTERY ON 1-2

RESET CMOS 2-3

VID1-VID4

JP1

JP2

BF0-BF2

DIM31-32

DIM

51-52

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Disclaimer:This motherboard incorporates support for 75MHz and 83MHz BUSspeeds. However, these speeds will push PCI bandwidth beyond the Intel-recommended specification for PCI 2.1 compliance. Therefore, TYANComputer Corporation takes no responsibility for any problems, be theyhardware or software, related to the use of BUS speeds beyond 66MHz.We also cannot guarantee any PCI cards’ compatibility beyond the speci-fied speed of 33MHz. Technical support and RMA/Warranty claims re-lating to the use of BUS speeds beyond the 66MHz/33MHz limit recom-mended by Intel will not be honored by TYAN. Use at your own risk.

Windows 95 Users:You may encounter problems with some of the devices in the Intel82371AB chip. Neither the PCI Bridge nor the PCI Universal Serial BUSdevice IDs for this chip (also called PIIX4) are recognized by Windows95. This is a software problem, not a hardware problem, and can be eas-ily remedied by either upgrading to Windows 98 or downloading the82371AB patch found at http://www.tyan.com or at ftp://download.intel.com/design/pcisets/busmastr/setupex.exe. (Note: USBrequires Windows 95 OSR 2.1 or above; please contact Microsoft forUSB update.)

CMOS RTC

The 430TX chipset includes an internal batteryand Real Time Clock circuit. The RTC pro-vides the date and time for the system. If thebattery is low, it will prevent your system fromPOSTing, and you will not get a display.Normally the life span of an RTC internalbattery is 10 years, but if yours is running low, you will need to replaceit with a new 3V lithium battery (Duracell DL2032).

Soft Power Connector

The Soft Power Connector is located on pins 1 and 2 of jumper block

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J8. Pressing the Soft Power Button will turn the system on (and off).

Speaker Connector Installation

S1576S provides a 4-pin header to connect the speaker. The speaker isconnected to pins 24-27 of jumper block J8.

Hardware Reset Switch ConnectorInstallation

The Reset switch on your case’s display panel provides you with theHardware Reset function, which is the same as power on/off. Thesystem will do a cold start after the Reset button is pushed. The Resetswitch is a 2-pin connector and should be installed on pins 22 and 23on jumper block J8.

Flash EEPROM

The S1576S uses flash memory to store BIOS programs. It can beupdated as new versions of the BIOS become available. The flashutility will guide you through the update process step by step (seeChapter 5).

JP2 determines which type of EPROM is used. This jumper has beenset to match the onboard BIOS chip. The factory default for theS1573S is on pins 1-2. Depending on the type of EPROM used, someboards will have JP2 on pins 2-3.

Hardware CMOS & Password Reset

If you have been locked out of your system because you forgot yourpassword or set the CMOS incorrectly, follow the instructions below.

1. Power off the system2. Set jumper JP1 to pins 2 and 3 (see previous page for location of JP1).

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3. Wait for 2 seconds, then return JP1 to pins 1 and 2.4. Power on the system again.

By following the above procedure, you will erase your password andreset the CMOS to the BIOS defaults.

DRAM Installation

The S1576S uses a 64-bit data path from memory to CPU and canaccommodate up to 256MB of RAM. SDRAMs (SynchronousDRAMs) are also supported in the DIMM slots. DIMMs must be ofthe unbuffered variety. The position of the notch in the DRAM KeyPosition will tell you whether or not a DIMM is unbuffered (see figureon page 20). All installed memory will be automatically detected, sothere is no need to set jumpers. The TX chipset can cache up to 64MBof RAM.

Some details of memory installation:s One unbuffered DIMM must be installed for the system to POST.s The mainboard supports 1, 2, and 4MBx64 DIMM modules.

The table below shows some of the possible memory configurations.

Chapter 3

RFUBuffered

Unbuffered 168-pin DIMM

DIMMBank 0

8MBx1 8MBx1 16MBx1 8MBx1 8MBx1 8MBx1 16MBx1 32MBx1 64MBx1 64MBx1 64MBx1 64MBx1 128MBx1

DIMMBank 1

0 0 0 8MBx1 8MBx1 16MBx1 16MBx1 32MBx1 0 32MBx1 64MBx1 64MBx1 128MBx1

DIMMBank 2

0 0 0 0 8MBx1 8MBx1 0 0 0 0 0 64MBx1 0

Total 8MB 8MB 16MB 16MB 24MB 32MB 32MB 64MB 64MB 96MB 128MB 192MB 256MB

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CPU Installation

Several types of CPUs (75 through 233MHz) can be used on theS1576S. Please refer to page 13 for the correct CPU jumper settingsfor your particular CPU.

Remember:s The CPU is a sensitive electronic component and it can easily be

damaged by static electricity. Do not touch the CPU pins with yourfingers.

s When installing the CPU into the socket, match the CPU pins tothe socket pins. Note that one corner of the socket’s top is differentfrom the other three corners. Likewise, one corner of the CPU’sbottom is different from the other three corners. Line the uniquesocket corner up with the unique CPU corner.

s Before the CPU is installed, the mainboard must be placed on aflat surface. You should be able to insert the CPU with minimal,but firm, pressure. Do not press down hard on the CPU.

s An assembly composed of both a cooling fan and a heat sink isrequired to protect the CPU from being damaged.

CPU Installation Procedure:1. Make sure the ZIF socket

lever is up. To raise the lever,pull it a bit horizontally, andthen as far as it will govertically. The top plate willslide back to open up thesocket.

2. Align the CPU and socketpin 1 corners. The pins onthe bottom of the CPUshould align with the holes inthe socket.

3. Insert the CPU into the socket. It should slip in easily. If it doesnot, adjust the position of the lever a little.

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Line up these two corners

Bottom of CPUTop of socket

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4. Press the lever down. The top plate will slide forward into itsoriginal position. You will feel some resistance as the CPU issecured in the socket. This is normal and will not damage theCPU. The lever should snap into place at the side of the socket.

Cache Memory

The S1576S has 512KB of onboard pipeline-burst SRAM; this SRAMcannot be upgraded. The TX chipset can cache a maximum of 64MBof RAM.

Peripheral Device Installation

After all the jumpers on the mainboard have been set, the mainboardcan be mounted into the case. You may then install the display card andany other peripheral devices that you may have.

If a PCI-BUS interface card is to be installed in the system, any one ofthe five PCI-BUS slots can support either a Master or a Slave device.Note that PCI slot 1 and slot 5 share the same BUS master resource,and so you cannot use a BUS master on slot 1 and slot 5 at the sametime.

After installing the peripheral controllers, you should check the CPUand all your devices again before preparing to power on the system.

Connecting the Power Supply

The female power connector on the mainboard fits with the malepower connector from your power supply. Beware: incorrect installa-tion of the power supply can result in serious damage to the systemboard and connected peripherals. Before connecting the leads from thepower supply, you should first make sure that the power supply isunplugged.

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Most male power supply connectors will have twenty wires, seven ofwhich are black. The black wires will be in the middle of the connec-tor. The easiest way to orient the connectors properly is to line up theplastic clip on the male connector with the tab on the female connec-tor. The plastic clip should be facing the middle of the motherboard.

Align the plastic guide pins on the male connector with their recep-tacles on the mainboard. You may need to hold the lead at an angle inorder to properly line it up with the onboard connector. Once you havethe guide pins aligned, press the lead into the connector so that theplastic clip on the lead snaps into place and secures the lead to theconnector. Please see the figure below.

Onboard connector

Power supply connector

tab

clip

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Chapter 4

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BIOS Configuration

Award’s BIOS has a built-in setup program that allows you to modifythe basic system configuration. This type of information is stored inthe battery-backed CMOS NVRAM. Entering incorrect informationor forgetting your password can lock you out of your system.Refer to “Hardware CMOS & Password Reset” (page 19) inChapter 3 for information on resetting the CMOS NVRAM.

Entering Setup

You can enter Setup by powering on the computer and watching for thebelow message during the POST (Power On Self Test).

Press DEL to enter Setup

When this message appears at the bottom of the screen, press the<Del> key. This must be done quickly, as the message is only dis-played for a brief time. If you do not press the <Del> key in time (or atall), the system will boot normally. If you choose to enter Setup theMain Menu will appear on the screen.

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Control KeysBelow is a chart of the control keys available in Setup.

PgUp Increases the numeric value of a field, or changes currentsetting.

PgDn Decreases the numeric value of a field, or changes currentsetting.

F1 General help.F2 Changes color; choose from a total of 16 colors.F5 Restores the previous CMOS value.F6 Loads BIOS defaults.F7 Loads Setup Defaults.F10 Saves all CMOS changes (only in Main Menu).Esc Quit, or exit current menu.

Getting Help

In the Main Menu, a description of the highlighted setup function isdisplayed at the bottom of the screen. If you need help in the StandardCMOS Setup, BIOS Features Setup, Chipset Features Setup, PowerManagement Setup, PnP/PCI Configuration, or Integrated PeripheralsMenus, press F1 to bring up a small Help window that describes theappropriate keys to use and the possible actions for the highlighteditem. To exit the Help window, press <Esc>.

The Main Menu

Once you enter the Award BIOS CMOS Setup Utility, the Main Menuwill appear on the screen. Use the arrow keys to select from amongstthe items and press <Enter> to view a selected sub-menu.

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STANDARD CMOS SETUP INTEGRATED PERIPHERALS

BIOS FEATURES SETUP SUPERVISOR PASSWORD

CHIPSET FEATURES SETUP USER PASSWORD

POWER MANAGEMENT IDE HDD AUTO DETECT

PNP/PCI CONFIGURATION SAVE & EXIT SETUP

LOAD BIOS DEFAULTS EXIT WITHOUT SAVING

LOAD SETUP DEFAULTS

éêèç : Select Item

Chapter 4

(Shift)F2 : Change Color

Time, Date, Hard Disk Type...

ROM PCI/ISA BIOS (2A59IT5A)CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

ESC : Quit F10 : Save & Exit Setup

Below is a list of the sub-menus and commands, and a description oftheir functions. Note that while the menu options appear in all capitalletters on screen, we have adapted a more conventional capitalizationscheme for this manual.

Standard CMOS SetupThis setup menu allows you to change basic parameters such as theday, time, and drive types.

BIOS Features SetupThis setup menu allows you to alter a variety of enhanced parameterssuch as BIOS Shadowing, Boot Up System Speed, and CPU InternalCache.

Chipset Features SetupThis setup page includes all the features of the 430TX chipset, includ-ing the DRAM Refresh Rate and I/O Recovery Time.

27

Power Management SetupFrom within this menu, you can set or disable system power manage-ment options.

PnP/PCI ConfigurationEnter this sub-menu to modify the configuration of Plug and Playstandard and PCI BUS parameters.

Load BIOS DefaultsThis item will load the BIOS defaults, which are the most stablesettings for each system parameter.

Load Setup DefaultsThis item will load the Setup defaults, which are the optimal values forthe system parameters.

Integrated PeripheralsThis option lets you enable or disable onboard devices. You can alsoconfigure the I/O and IRQ settings of the onboard serial and parallelports.

Supervisor Password and User PasswordChange, set, or disable a password with this function. It allows you tolimit access to the system and/or to Setup.

IDE HDD Auto DetectionThe IDE HDD Auto Detection menu automatically configures yourhard disk parameters.

Save & Exit SetupSaves changes to CMOS and exits setup.

Exit Without SavingAbandons all CMOS changes and exits setup.

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Date (mm:dd:yy) : Wed, Aug 6 1997Time (hh:mm:ss) : 18 : 01 : 38

Type Size CYLS HEADS PRECOMP LANDZ SECTOR MODEPrimary Master : Auto 0 0 0 0 0 0 AUTOPrimary Slave : Auto 0 0 0 0 0 0 AUTOSecondary Master : Auto 0 0 0 0 0 0 AUTOSecondary Slave : Auto 0 0 0 0 0 0 AUTODrive A : 1.44 M, 3.5 in.Drive B : 1.2 M, 5.25 in.Floppy 3 Mode Support : Disabled

Video : EGA/VGAHalt On : All Errors

Standard CMOS Setup Menu

In this menu drawing and all those that follow, the values shown arethe default values, unless otherwise noted.

DateThe date format is <month>, <day>, <year>. Press <F3> to show thecalendar.

TimeThe time format is <hours>, <minutes>, <seconds>. The time iscalculated based on the 24-hour military-time clock. For example, 1p.m. is 13:00:00.

Primary/Secondary Drive TypeThis category identifies the types of hard disk drives that have beeninstalled in the computer. There are 45 already-defined types and onewhich you can customize. Select auto if the drive type is unknown.

Chapter 4

ROM PCI/ISA BIOS (2A59IT5A)STANDARD CMOS SETUPAWARD SOFTWARE, INC.

Base Memory: 640 KExtended Memory: 7168 KOther Memory: 384 K

Total Memory: 8192 K

ESC : Quit éêèç : Select Item PU/PD/+/- : Modify F1 : Help (Shift)F2 : Change Color

29

Press PgUp or PgDn to select a numbered hard disk type or type anumber and press <Enter>. Note that the specifications of your drivemust match the drive table. The hard disk will not work properly if youenter improper information for this category. If your hard disk type isnot listed, you can select User to define your own drive manually.

If you select the User type, you will be asked to fill in the categoriesshown in the chart below. Type in the parameters and press <Enter>.Your hard disk information should be provided in the documentationfrom the hard disk vendor or the system manufacturer.

CYLS number of cylindersHEADS number of headsPRECOMP write precomp cylLANDZ landing zoneSECTOR number of sectorsMODE auto, normal, large, or LBA

If a hard disk has not been installed or you have a CD-ROM or tapedrive connected to an IDE channel, select None and press <Enter>.

Drive A type/Drive B typeThis category identifies the types of floppy disk drives that have beeninstalled in your computer as the A and/or B drives. The possiblefloppy drive types are as follows:

Floppy 3 Mode SupportProvides support for Floppy 3, a 1.25MB floppy type used mostly inJapan.

None No floppy drive installed.360KB, 5.25 in. 5.25 inch PC-type standard drive; 360KB capacity.1.2MB, 5.25 in. 5.25 inch AT-type high-density drive; 1.2MB capacity.720KB, 3.5 in. 3.5 inch double-sided drive; 720KB capacity.1.44MB, 3.5 in. 3.5 inch double-sided drive; 1.44MB capacity.2.88MB, 3.5 in. 3.5 inch double-sided drive; 2.88MB capacity.

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VideoThis category detects the type of graphics adapter used for the primarydisplay system. The value entered in this field must match your videodisplay card and monitor. You may not need to alter the default value,as BIOS usually detects the correct video type automatically.

EGA/VGA Enhanced Graphics Adapter/Video Graphics Array.For EGA, VGA, SEGA, SVGA, or PGA monitoradapters.

CGA 40 Color Graphics Adapter, power up in 40 columnmode.

CGA 80 Color Graphics Adapter, power up in 80 columnmode.

Mono Monochrome adapter, including hi-res monochrome.

Halt OnThe category determines whether the computer will stop if an error isdetected during power up.

No errors The system boot will not be stopped for anyerrors that are detected.

All errors If the BIOS has detected a non-fatal error, thesystem will be stopped and you will beprompted.

All, but Keyboard The system boot will not stop for a keyboarderror, but will stop for all other errors.

All, but Diskette The system boot will not stop for disk errors,but will stop for all other errors.

All, but Disk/Key The system boot will not stop for a keyboardor disk error, but will stop for all other errors.

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MemoryYou cannot alter this category from within Setup: it is for display onlyand is determined by the BIOS POST (Power On Self Test). The threecategories are as follows:

Base MemoryThe BIOS POST will determine the amount of base(or conventional) memory installed in the system. Thevalue of the base memory is typically 640KB.

Extended MemoryThe BIOS determines how much extended memory ispresent during the POST. This is the amount ofmemory located above 1MB in the CPU’s memoryaddress map.

Other MemoryThis refers to memory located in the 640KB to1024KB address space. This memory can be used for anumber of different applications. DOS uses this area toload device drivers in order to keep as muchconventional memory free for application programs aspossible. Often called “high memory.”

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Chapter 4

BIOS Features Setup

Virus warningWhen enabled, this function flashes on-screen messages. During andafter the system boot up, any attempt to write to the boot sector or thepartition table of the hard disk drive will halt the system and producean error message. If a warning appears, you should run an anti-virusprogram to locate the problem. This feature protects only the bootsector, not the entire drive. Note that some disk diagnostic programswill trigger a virus warning message.

Enabled Activates automatically when the system boots up, causing a warningmessage to appear when anything attempts to access the boot sector or harddisk partition table.

Disabled No warning message will appear when anything attempts to access the bootsector or hard disk partition table.

ROM PCI/ISA BIOS (2A59IT5A)BIOS FEATURES SETUP

AWARD SOFTWARE, INC.Video BIOS Shadow : EnabledC8000-CBFFF Shadow : DisabledCC000-CFFFF Shadow : DisabledD0000-D3FFF Shadow : DisabledD4000-D7FFF Shadow : DisabledD8000-DBFFF Shadow : DisabledDC000-DFFFF Shadow : Disabled

Virus Warning : DisabledCPU Internal Cache : EnabledExternal Cache : DisabledQuick Power On Self Test : EnabledBoot Sequence : A,C,SCSISwap Floppy Drive : DisabledBoot Up Floppy Seek : EnabledBoot Up NumLock Status : OnBoot Up System Speed : HighTypematic Rate Setting : DisabledTypematic Rate (Chars/sec) : 6Typematic Delay (Msec) : 250Security Option : SetupPS/2 mouse function control : EnabledPCI/VGA Palette Snoop : DisabledAssign IRQ for VGA : DisabledOS select for DRAM > 64 MB : Non-OS/2

ESC : Quit éêèç : Select ItemF1 : Help PU/PD/+/- : ModifyF5 : Old Values (Shift)F2 : ColorF6 : Load BIOS DefaultsF7 : Load Setup Defaults

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Enabled BIOS searches for floppy disk drive to determine if it is 40 or 80 tracks. Note that the BIOS cannot distinguish between 720KB, 1.2MB, and 1.44MB drive types, as they are all 80 tracks.

Disabled BIOS will not search for the type of floppy disk drive by track number. Note that there will not be any warning messages if the drive installed is 360KB.

CPU Internal Cache and External CacheThese two fields-when enabled-result in faster memory access.

Quick Power On Self TestSelect Enabled to reduce the amount of time required to run the PowerOn Self Test (POST). It should be noted that the quick test skipscertain steps that are covered in the normal POST.

Boot SequenceThis category determines which drive the computer searches first forthe disk operating system (DOS).

Swap Floppy DriveIf you have two floppy drives, you can choose to designate the physi-cal A drive as the logical B drive, and vice-versa. If this function isEnabled, the two will be swapped. If Disabled, the two will be definednormally (i.e. physical and logical designation will be the same).

Boot Up Floppy SeekDuring POST, the BIOS will determine if the floppy disk drive in-stalled is 40 or 80 tracks. The 360KB type is 40 tracks while the720KB, 1.2MB, and 1.44MB are all 80 tracks.

Boot Up NumLock StatusDetermines whether or not NumLock is active when the system boots.If On, the number keys are active on the keypad; if Off, the arrow keysare active.

A, C System will first search for floppy disk drive, then hard disk drive.C, A System will first search for hard disk drive, then floppy disk drive.

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Boot Up System SpeedSelect High to boot at the default CPU speed; select Low to boot at thespeed of the ATX BUS. If you are using old software or certain add-inperipherals you may need to use the Low system speed.

Typematic Rate Setting, Typematic Rate (Chars/sec), andTypematic Delay (Msec)The Typematic Rate Setting enables or disables the Typematic Rateand Typematic Rate Delay functions. The Typematic Rate (6, 8, 10,12, 15, 20, 24, or 30 characters per second) and Typematic Rate Delay(250, 500, 750, or 1000 milliseconds) control the speed at which akeystroke is repeated. The delay between when a key on the keyboardis pressed and when the character begins to appear repeatedly onscreen is controlled by the Typematic Rate Delay. Once it has begun torepeat, the character appears at the speed set by the Typematic Rate.

Security OptionAllows you to select whether a password (if you have one) is requiredeach time the system boots or only when you enter Setup.

PS/2 mouse function controlEnables or Disables the PS/2 mouse.

PCI/VGA Palette SnoopLeave this field at Disabled unless you have one video card running ona PCI BUS, and another running on an ISA BUS. Enabling it willallow both cards to be refreshed. Most systems will only have onevideo card, and that located on a PCI BUS.

System The system will not boot and access to Setup will be denied if the correctpassword is not entered at the prompt.

Setup The system will boot, but access to Setup will be denied if the correctpassword is not entered at the prompt.

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Assign IRQ for VGAFor most PCI cards, you do not want your system to assign an IRQ tothe VGA. However, for some older PCI cards, you do. Enabling thisfunction allows the system to assign an IRQ.

OS select for DRAM > 64 MBIf you are using IBM OS/2, and more than 64MB of memory, you mustEnable this field.

Video BIOS ShadowThis function allows BIOS to “shadow” firmware-to copy it fromROM into the system RAM. Once there, the CPU can read the firm-ware through the 16-bit or 32-bit DRAM BUS. Firmware that is notshadowed is read through the 8-bit X BUS. Shadowing improves theperformance of the system BIOS and ROM firmware for expansionperipherals, but reduces the amount of high memory available forloading device drivers. Rather than shadowing all the availablememory sections at once, you should Enable shadowing of eachmemory section independently, to see how it affects performance.

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Chipset Features Setup

Auto ConfigurationThis function selects the optimal values for your chipset parameters. IfDisabled, the chipset parameters will revert to setup information storedin CMOS. When Auto Configuration is Enabled, many of the optionsbelow will not be available.

DRAM TimingThe value in this field is determined by the performance parameters ofthe installed DRAM chips. Unless you install new memory that has adifferent performance rating than the factory DRAMs, you should notalter this field.

DRAM Leadoff TimingSelects the combination of CPU clocks the DRAM on your boardrequires before each read from or write to the memory. Beware:changing the value from the setting determined by the board designerfor the installed DRAM may cause memory errors.


Pipeline Cache Timing : FasterChipset NA# Asserted : EnabledMem. Drive Str. (MA/RAS) : AutoDRAM Refresh Rate : 15.6 usCPU Warning Temperature : DisabledCurrent CPU Temperature : 35°C/ 95°F

Auto Configuration : EnabledDRAM Timing : 70ns

DRAM Leadoff Timing : 10/6/4DRAM Read Burst (EDO/FP) : x333/x444DRAM Write Burst Timing : x333Fast EDO Lead Off : DisabledRefresh RAS# Assertion : 5 ClksFast RAS To CAS delay : 3DRAM Page Idle Timer : 2 ClksDRAM Enhanced Paging : EnabledFast MA to RAS# delay : 2 ClksSDRAM(CAS Lat/RAS-to-CAS) : 3/3SDRAM Speculative Read : DisabledSystem BIOS Cacheable : DisabledVideo BIOS Cacheable : Disabled8 Bit I/O Recovery Time : NA16 Bit I/O Recover Time : NAMemory Hole at 15M-16M : DisabledPCI 2.1 Compliance : Disabled

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ROM PCI/ISA BIOS (2A59IT5A) CHIPSET SETUP UTILITYAWARD SOFTWARE, INC.

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DRAM Read Burst (EDO/FP)Sets the timing for reads from EDO (Extended Data Output) or FP[M](Fast Page Mode) memory. The lower you set the timing numbers, thefaster the system will address the memory. Selecting timing numberslower than the installed DRAM is able to support can result in memoryerrors.

DRAM Write Burst TimingSets the timing for writes to memory. As above, the lower the timingvalues, the faster the system will address the memory. Note thatselecting timing numbers lower than the installed DRAM is able tosupport can result in memory errors.

Fast EDO LeadoffUnless you have EDO DRAMS in a synchronous cache or cachelesssystem, select Disabled. Enabling will cause a 1-HCLK pull-in for allread leadoff latencies for EDO DRAMs (i.e., page hits, page misses,and row misses). You should also select Disabled if any of the DRAMrows contains FPM DRAMs.

Refresh RAS# AssertionSelects the number of clock cycles in which RAS# is asserted forrefresh cycles.

Fast RAS To CAS delayInserts a timing delay between the CAS and RAS strobe signals whenDRAM is refreshed, read from, or written to.

DRAM Page Idle TimerSelects the time in HCLKs that the DRAM controller waits to close aDRAM page after the CPU becomes idle.

DRAM Enhanced PagingWhen Enabled, the chipset keeps the page open until a page/row miss.When Disabled, the chipset uses additional data to keep the DRAMpage open when the host may be only temporarily absent.

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Fast MA to RAS# delayDo not change these values unless you change the specifications of theinstalled DRAM or the installed CPU.

SDRAM(CAS Lat/RAS-to-CAS)You can select a combination of CAS latency and RAS-to-CAS delayin HCLKs of 2/2 or 3/3. The board designer should have set thesevalues based on the installed DRAM. As above, do not change thevalues in this field unless you change the specifications of the installedDRAM or the installed CPU.

SDRAM Speculative ReadThe chipset can guess at a DRAM read address in order to reduce readlatencies. A read request containing the data memory address is issuedby the CPU, and received by the DRAM controller. If this function isEnabled, the controller issues the read command just before it hasfinished decoding the data address.

System BIOS CacheableIf Enabled, results in better system performance by permitting cachingof the system BIOS ROM at F0000h-FFFFFh. Any program whichtries to write to this memory area may cause a system error.

Video BIOS CacheableIf Enabled, this function results in better video performance by permit-ting caching of the video BIOS ROM at C0000h to C7FFFh. Note thatany program which tries to write to this area may cause a system error.

8- and 16-Bit I/O Recovery TimeBecause the PCI BUS is so much faster than the ISA BUS, the I/Orecovery mechanism adds BUS clock cycles to the ISA BUS betweenPCI-originated I/O cycles. These two fields let you add recovery time(in BUS clock cycles) for both 8-bit and 16-bit I/O.

Memory Hole at 15M-16MYou can reserve this area of the system memory for ISA adapter ROM.As long as it is reserved, however, it cannot be cached. Any peripher-

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als that require this area of system memory should have a note in theiruser information to that effect.

PCI 2.1 ComplianceSelect Enabled to support compliance with PCI specification version2.1.

Pipeline Cache TimingIf your system contains a single bank of pipelined burst SRAM, selectFaster. If your system contains two banks of pipelined burst SRAM,select Fastest.

Chipset NA# AssertedIf Disabled, NA# assertion depends upon cache size and type. IfEnabled, the NA# pin is never asserted. Instead, in a process called“pipelining,” the chipset will signal the CPU for a new memoryaddress before all the data transfers for the current cycle are complete.

Mem. Drive Str. (MA/RAS)Stands for Memory Address Drive Strength. Controls the strength ofthe output buffers driving the MA and BA1 pins (first value) andSCASx#, CKEx, MWEx#, and SRASx# pins (second value).

DRAM Refresh RateDesignates the period required to refresh the DRAMs. Be sure thevalue entered is in accordance with your DRAM specifications.

CPU Warning TemperatureLM75 monitors the CPU’s temperature. If the CPU temperatureexceeds the value in this field, a warning beep will sound. Enabledwarning temperature choices are 60, 65, 70, 75, 80, 85, or 90 degreesCelsius. If Disabled, no beep will sound.

Current CPU TemperatureThis display-only field shows the current CPU temperature as detectedby LM75.

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Power Management Setup

Power ManagementThis option allows you to select the level of power saving for theDoze, Standby, and Suspend modes. Max Saving provides the mostpower saved; Min Saving the least. User Define allows you to set eachof the modes individually.

PM Control by APMIf APM is installed on your system, selecting Yes gives better powersavings.

Video Off MethodThe Blank Screen option will let the system BIOS blank the screenwhen disabling video. V/H SYNC+Blank will let the BIOS turn off theV-SYNC and H-SYNC signals running from the VGA card to themonitor.

ROM PCI/ISA BIOS (2A59IT5A)POWER MANGEMENT SETUP

AWARD SOFTWARE, INC.Power Management : Disabled **Reload Global Timer Events**PM Control By APM : No IRQ [3-7, 9-15],NMI : DisabledVideo Off Method : V/H SYNC+Blank Primary IDE 0 : DisabledVideo Off After : Standby Primary IDE 1 : DisabledMODEM Use IRQ : 3 Secondary IDE 0 : DisabledDoze Mode : Disabled Secondary IDE 1 : DisabledStandby Mode : Disabled Floppy Disk : DisabledSuspend Mode : Disabled Serial Port : EnabledHDD Power Down : Disabled Parallel Port : DisabledThrottle Duty Cycle : 62.5% Power Interruption : DisabledZZ Active in Suspend : DisabledVGA Active Monitor : EnabledSoft-Off by PWR-BTTN : Delay 4 sec.CPUFAN Off In Suspend : EnabledResume by Ring : DisabledIRQ 8 Break Suspend : Disabled

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Video Off AfterSelects the mode in which you want the monitor to blank.

MODEM Use IRQIf Resume by Ring is Enabled, it is possible to wake the system bydialing in. This field determines which IRQ will be monitored for theincoming call.

Doze ModeDefines the continuous idle time before the system enters Doze mode.Only the CPU’s speed is slowed.

Standby ModeDefines the continuous idle time before the system enters Standbymode. Video and fixed disk drive shut down; all other devices operatenormally.

Suspend ModeDefines the continuous idle time before the system enters Suspendmode. All devices except the CPU shut down.

HDD Power DownThe hard disk drive powers down after the chosen period of driveinactivity, while all other devices remain active.

Throttle Duty CycleWhile the system is in Doze mode, the CPU clock runs only part of thetime. This function allows you to select the percentage of time that theclock will run.

ZZ Active in SuspendWhen Enabled, the ZZ signal is active during Suspend mode.

VGA Active MonitorWhen Enabled, any video activity restarts the global timer for Standby.

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Soft-Off by PWR-BTTNDetermines the amount of time between when you press the powerbutton to power off your computer and when the system actually turnsoff.

CPUFAN Off In SuspendYou may choose whether or not the CPU fan will remain on when thesystem is in Suspend mode. Enabling this function turns the CPU fanoff.

Resume by RingMakes it possible for the system to be awakened by remote. You mightEnable this function to make remote servicing possible or to get accessto your system while you are on a business trip.

IRQ 8 Break SuspendIf this field is Disabled, IRQ8 will not be monitored, and it will notawaken the system from Suspend mode. If this field is Enabled, IRQ8will be monitored, and will be able to awaken the system from Sus-pend mode.

Reload Global Timer EventsDefines the activities that can cause the PM timers to reload (e.g. whenyour system is awakened by remote via a modem).

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PnP/PCI Configuration

PnP OS InstalledSelect Yes if the system operating environment is Plug and Play aware(e.g. Windows 95 is).

Resources Controlled byThe BIOS can automatically configure all the boot- and Plug and Play-compatible devices. If you select Auto, all the interrupt request andDMA assignment fields disappear, since the BIOS automaticallyassigns values to them.

ROM PCI/ISA BIOS (2A59IT5A)PNP/PCI CONFIGURATIONAWARD SOFTWARE, INC.

PNP OS Installed : YesResource Controlled by : ManualReset Configuration Data : Disabled

IRQ-3 assigned to : Legacy ISAIRQ-4 assigned to : Legacy ISAIRQ-5 assigned to : PCI/ISA PnPIRQ-7 assigned to : Legacy ISAIRQ-9 assigned to : PCI/ISA PnPIRQ-10 assigned to : PCI/ISA PnPIRQ-11 assigned to : PCI/ISA PnPIRQ-12 assigned to : PCI/ISA PnPIRQ-14 assigned to : Legacy ISAIRQ-15 assigned to : Legacy ISADMA-0 assigned to : PCI/ISA PnPDMA-1 assigned to : PCI/ISA PnPDMA-3 assigned to : PCI/ISA PnPDMA-5 assigned to : PCI/ISA PnPDMA-6 assigned to : PCI/ISA PnPDMA-7 assigned to : PCI/ISA PnP

ESC : Quit éêèç : Select ItemF1 : Help PU/PD/+/- : ModifyF5 : Old Values (Shift)F2 : ColorF6 : Load BIOS DefaultsF7 : Load Setup Defaults B

IOS

(non-default settings)

PCI IDE IRQ Map To : PCI-AUTOPrimary IDE INT# : ASecondary IDE INT# : B

Used MEM base addr : DC00Used MEM Length : 8K

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Chapter 4

Reset Configuration DataYou should leave this field Disabled unless you have installed a newadd-on and the system reconfiguration has caused such a seriousconflict that the operating system cannot boot. If this occurs, selectEnabled to reset the Extended System Configuration Data when youexit Setup.

IRQ-n assigned toWhen resources are controlled manually, assign each system interruptas one of the following types, depending on the type of device usingthe interrupt.

Legacy ISAChoose this type for devices compliant with the original PCAT BUS specification.PCI/ISA PnPChoose this type for devices compliant with the Plug and Playstandard, whether designed for the PCI or ISA BUSarchitecture.

DMA-n assigned toLegacy ISAChoose this type for devices compliant with the original PCAT BUS specification.PCI/ISA PnPChoose this type for devices compliant with the Plug and Playstandard, whether designed for the PCI or ISA BUSarchitecture.

PCI IDE IRQ Map To:This field lets you select PCI IDE IRQ mapping or PC AT (ISA)interrupts. If your system does not have one or two PCI IDE connec-tors on the system board, select values according to the type of IDEinterfaces installed in your system (choose the ISA value if you haveISA interfaces; choose PCI-AUTO if you have PCI interfaces). Stan-dard ISA interrupts for IDE channels are IRQ-14 for primary channelsand IRQ-15 for secondary channels. If you select ISA for this field, thePrimary and Secondary IDE INT# fields will not be visible.

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Primary IDE INT# and Secondary IDE INT#Up to four interrupts (INT# A, INT# B, INT# C, and INT# D) can beactivated by each PCI peripheral connection. A PCI connection isassigned INT# A by default. Unless the peripheral device requires twointerrupt services, assigning INT# B will have no effect. Note that thePCI IDE interface in the chipset has two channels, and thereforerequires two interrupt services. The default values for the Primary andSecondary IDE INT# fields are appropriate for two PCI IDE channels.The Secondary channel has a higher interrupt than the Primary.

Used Mem base addrThis function designates a base address for the memory area used byperipheral devices that require high memory.

Used Mem LengthSelects a length for the high memory area specified in the previousfield. If no base address is specified, this field will not appear.

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Load BIOS Defaults

Load BIOS DefaultsTo load BIOS default values to CMOS NVRAM, enter Y. If you do notwish to load the Setup defaults, enter N. If any problem has occurredwith your system’s configuration, loading the BIOS defaults is recom-mended.



CHIPSET FEATURES USER PASSWORD

PNP/PCI CON IDE HDD AUTO DETECT

LOAD BIOS DEFAULTS SAVE & EXIT SETUP

LOAD SETUP DEFAULTS EXIT WITHOUT SAVING




ESC : Save & Exit Setup F10 : Quit (Shift)F2 : Change Color

Load BIOS Defaults except standard CMOS SETUP

Load BIOS Defaults (Y/N)? N

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Load Setup Defaults

Load Setup DefaultsTo load Setup default values to CMOS NVRAM, enter Y. If you do notwish to load the Setup defaults, enter N. If any problem has occurredwith your system’s configuration, loading the Setup defaults is recom-mended.

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Load SETUP Defaults except standard CMOS SETUP

Load SETUP Defaults (Y/N)? N

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Integrated Peripherals

IDE HDD Block ModeThe terms “multiple commands,” “multiple sector read/write,” and“block transfer” are all alternate names for block mode. Unless yourIDE hard drive is old, it should support Block Mode. If Enabled, BlockMode yields automatic detection of the optimal number of block read/writes per sector that the drive can support.

IDE Primary Master PIO, IDE Primary Slave PIO, IDE Second-ary Master PIO, and IDE Secondary Slave PIOThe four IDE PIO (Programmed Input/Output) fields let you set a PIOmode (from 0 to 4) for each of the four IDE devices supported by theonboard IDE interface. Modes 0 through 4 provide successivelyincreasing performance. In Auto mode, the system automaticallydetermines the best mode for each device.



IDE HDD Block Mode : Disabled Parallel Port Mode : ECP+EPP IDE Primary Master PIO : Auto ECP Mode Use DMA : 3 IDE Primary Slave PIO : Auto Parallel Port EPP Type : EPP1.7 IDE Secondary Master PIO : Auto IDE Secondary Slave PIO : Auto IDE Primary Master UDMA : Disabled IDE Primary Slave UDMA : Disabled IDE Secondary Master UDMA : Disabled IDE Secondary Slave UDMA : Disabled On-Chip Primary PCI IDE : Enabled On-Chip Secondary PCI IDE : Enabled USB Keyboard Support : Disabled

On-board FDC Controller : Enabled On-board UART 1 : Com1/3F8 On-board UART 2 : Com2/2F8 On-board UART 2 Mode : Standard

On-board Parallel Port : 378/IRQ7

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IDE Primary Master UDMA, IDE Primary Slave UDMA, Second-ary Master UDMA, and IDE Secondary Slave UDMAUltra DMA/33 can only be implemented if your IDE hard drivesupports it and the operating environment includes a DMA driver. Ifyour hard drive and your system software both support Ultra DMA/33,select Auto to enable BIOS support.

On-Chip Primary PCI IDE and On-Chip Secondary PCI IDEThe integrated peripheral controller contains an IDE interface withsupport for two IDE channels. Select Enabled to activate each channelseparately.

USB Keyboard SupportSelect Enabled if your system contains a Universal Serial BUS (USB)controller and you have a USB keyboard.

Onboard FDC ControllerIf your system has a floppy disk controller (FDC) installed on thesystem board and you wish to use it, select Enabled. If you install anadd-in FDC or the system has no floppy drive, select Disabled.

Onboard UART 1 and Onboard UART 2Select an address and corresponding interrupt for the first and secondserial ports.

Onboard UART 2 ModeThe second serial port offers these InfraRed interface modes:

HPSIR IrDA-compliant serial infrared portASKIR Amplitude shift keyed infrared port

Onboard Parallel PortSelect an LPT port name and matching address for the physical parallel(printer) port.

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Parallel Port ModeSelect an operating mode for the onboard parallel (printer) port. SelectNormal unless your hardware and software require one of the otherpossible modes. If you select Normal for this field, the next two fieldswill not be visible.

ECP Mode Use DMASelect a DMA channel for the port.

Parallel Port EPP TypeSelect EPP port type 1.7 or 1.9. Your device’s user information shouldtell you which port type is required. 1.9 is common in newer devices.

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When you select this function, the “Enter Password” message willappear at the center of the screen. Type the password, which can be upto eight characters long, and press <Enter>. The password typed nowwill clear any previously entered password from the CMOS memory.You will be asked to confirm the password. Type the password againand press <Enter>. To abort the selection and not enter a password,press <Esc>.

To disable an existing password, press <Enter> when you are promptedto enter a password. A message (Password Disabled!!!”) will confirmthat the password has been disabled, the system will reboot, and youwill be able to enter Setup freely.

If you select System in the Security Option of the BIOS Features SetupMenu (see page 32), you will be prompted for the password every timethe system is rebooted and any time you try to enter Setup. If youselect Setup in the Security Option of the BIOS Features Setup Menu,you will be prompted only when you try to enter Setup.

Supervisor Password and User Password

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LOAD SETUP DEFAULTS EXIT WITHOUT SAVINGéêèç : Select Item




Change/Set/Disable Password

Enter Password:

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Chapter 4

IDE HDD Auto Detection

Type Y to accept the HDD parameter reported by BIOS. Type N tokeep the old HDD parameter information.

Notes on IDE HDD Auto Detection:sIf the hard disk is smaller than 540MB, select the NORMALparameters.sIf the hard disk is larger than 540MB, select LBA parameters.sAlways select NORMAL parameters for SCO-UNIX.

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE Primary Master

[Esc: Skip]



Select Primary Master Option (N=Skip) : NOPTIONS SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

2(Y) 1090 528 64 0 2111 63 LBA

Note: Some OSes (like SCO-UNIX) must use “NORMAL” for installation

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Save & Exit Setup

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LOAD SETUP DEFAULTS EXIT WITHOUT SAVING ESC : Save & Exit Setup F10 : Quit (Shift)F2 : Change Color

SAVE to CMOS and EXIT (Y/N)? N

Type Y to quit the Setup Utility and save your new Setup values to theCMOS NVRAM. Type N to return to the Setup Utility.

54











Quit Without Saving (Y/N)? N

Exit Without Saving

Type Y to abandon any changes you have made to the Setup valuesand exit the Setup Utility. Type N to return to the Setup Utility.

Chapter 4

55

This page has been intentionally left blank.

BIO

S

56

Flash Memory Writer

You can upgrade the BIOS of your mainboard by using a FlashMemory Writer (FMW) utility. This utility can be downloaded fromTYAN’s BBS and from the TYAN website. The system BIOS is storedon a flash EPROM ROM chip on the mainboard which can be erasedand reprogrammed by the FMW.The following three files make up the FMW:

AWDFLASH.EXE -The Flash Memory Writer utility forAward to Award upgrade.

README -A text file of instructions.TXAWDXXX.BIN -This file contains the new BIOS

information. XXX is our stand-in forthe BIOS version number.

The Flash memory writer records (or “programs”) a new BIOS ontothe flash memory chip. You cannot upgrade an Award BIOS to an AMIBIOS or an AMI BIOS to an Award BIOS.

Chapter 5

chap

ter 5

Flash Writer Utility

57

FLAS

H

Note:You should ALWAYS clear your CMOS after flashing a BIOS. Thiswill clear out any stray settings from your old BIOS which may havebeen carried over from the flashing process. Most problems encoun-tered after flashing a BIOS will be solved by this simple procedure.

To reprogram the System BIOS, you must first do the following:1. Check jumper JP2 (default pins 1-2). The S1576S uses a 5V flash

EPROM, so jumper JP2 should be left in the default position onpins 1 and 2. This jumper should never be moved, and has beenhardwired on some boards.

2. Make sure the CPU is running in “real mode.” FMW will not runif the CPU is operating in a protected or “virtual mode.” Thismeans that you can not run it with Windows running or with anymemory manager software. You must disable any memory man-ager before you can run FMW. The easiest way to do this is asfollows:

A. Boot your system from a bootable floppy disk with noCONFIG.SYS or AUTOEXEC.BAT files, and then runFlash Memory Writer from a backup copy of your supportdisk. You can make your backup floppy bootable whenyou format it, and use one disk for both purposes.

B. If you are using MS-DOS 6.x, you can use the feature thatallows you to bypass the CONFIG.SYS andAUTOEXEC.BAT file. You can access this feature bypressing <F5> while the “Starting MS DOS...” line is onthe screen.

It is important that you make sure that there are no memory managersrunning. If you are uncertain whether or not there is a memory man-ager running on your system, try running FMW. If it works, there is noactive memory manager. If you see a warning message about the CPUmode, check to see that you have followed the preceding directionsproperly, and try again.

!

58

Chapter 5

FLASH MEMORY WRITER V3.0Copyright (C) 1993, AWARD Software, Inc.

For VX/HX-2A59CT51 Date : 4/13/95

File Name to Program:Error Message:

Once you have satisfied the two requirements mentioned above (1 and2), you can run FMW. You may copy the contents of the “Flash”directory to your hard drive, or you may run the utility from a backupof the support floppy disk. Either way, make sure the new BIOS file isin the same directory as the FMW utility.

To start FMW, change to the “Flash” directory (if you are not alreadyin it). Type “Awdflash” at the DOS command line and press the<Enter> key. The following screen will appear:

The Flash Memory Writer Utility Screen

Type in the whole file name, e.g. A61AW10.BIN, and confirm that youwant to program the BIOS. The utility will Blank, Erase, and thenProgram the flash memory on the mainboard with the new BIOS file.You should choose Yes to save the original system BIOS to a floppydiskette before you program the new BIOS. This leaves you with abackup of your original BIOS in case you need to reinstall it. This ishighly recommended. If you cannot successfully program the BIOSfile for some reason, reinstall you original BIOS from the backup file.Always reset the CMOS with jumper JP1 after flashing to a new BIOS.

Warning: If you do not successfully install a complete BIOS file inthe flash memory on the Mainboard, your system may not be able toboot. If this happens, it will require service by your system vendor. Toavoid such an inconvenience, follow the requirements and instructionsin this section precisely.

!

59

FLAS

H

This page has been intentionally left blank.

60

Chapter 6

chap

ter 6

System Resources

Timer and DMA Channel Maps

TIMER MAP: TIMER Channel-0 system timer interruptTIMER Channel-1 DRAM REFRESH requestTIMER Channel-2 SPEAKER tone generator

DMA CHANNELS: DMA Channel-0 AvailableDMA Channel-1 AvailableDMA Channel-2 FLOPPY DISK adapterDMA Channel-3 AvailableDMA Channel-4 Cascade for DMAcontroller 1DMA Channel-5 AvailableDMA Channel-6 AvailableDMA Channel-7 Available

61

SY

ST

EM

Interrupt Map

NMI: Parity check error

IRQ (H/W): 0 System TIMER interrupt from TIMER-01 KEYBOARD output buffer full2 Cascade for IRQ 9-153 SERIAL port 24 SERIAL port 15 PARALLEL port 2 (available if not used)6 FLOPPY DISK adapter7 PARALLEL port 18 RTC clock9 Available10 Available11 Available12 PS/2 mouse (available if not used)13 MATH co-processor14 Primary IDE15 Secondary IDE

POST MessagesWhen the BIOS detects a correctable error during POST, a beep codesounds or an error message appears. What follows is an explanation ofthese messages and the measures you can take to solve the problemthey indicate. Also included in this list are some status messages whichdo not necessarily indicate an error (e.g. “CPU at nnnn,” which merelyindicates the CPU speed).

Beep CodesOnly one beep code is active now, and it sounds when a video error hasoccurred and the BIOS cannot initialize the video screen, and socannot display any information. The beep code is one long beepfollowed by two short ones.

62

Chapter 6

BIOS ROM checksum error-System haltedThe checksum of the BIOS code in the BIOS chip is incorrect, indicat-ing the BIOS code may have become corrupt. Contact your systemdealer to replace the BIOS.

CMOS battery failedCMOS battery is no longer functional. Contact your system dealer fora replacement battery.

CMOS checksum error-Defaults loadedChecksum of CMOS is incorrect, so the system loads the defaultequipment configuration. A checksum error may indicate that CMOShas become corrupt. This error may have been caused by a weakbattery. Check the battery and replace if necessary.

CPU at nnnnDisplays the running speed of the CPU.

Display switch is set incorrectly.The display switch on the motherboard can be set to either mono-chrome or color. This message indicates that the switch is set to asetting different from the one indicated in Setup. Determine whichsetting is correct, and then either turn off the system and change thejumper, or enter Setup and change the Video selection.

Floppy disk(s) failCannot find or initialize the floppy drive controller or the drive. Makesure the controller is installed correctly. If no floppy drives are in-stalled, be sure the Diskette Drive selection in Setup is set to None orAuto.

HARD DISK initializingPlease wait a moment…Some hard drives require extra time to initialize.

63

SY

ST

EM

HARD DISK INSTALL FAILURECannot find or initialize the hard drive controller or the drive. Makesure the controller is installed correctly. If no hard drives are installed,be sure the Hard Drive selection in Setup is set to None.

Hard disk(s) diagnosis failThe system may run specific disk diagnostic routines. This messageappears if one or more hard disks return an error when the diagnosticsrun.

Keyboard error or no keyboard presentCannot initialize the keyboard. Make sure the keyboard is attachedcorrectly and no keys are pressed during POST. To purposely configurethe system without a keyboard, set the error halt condition in Setup toHalt On All, But Keyboard. The BIOS then ignores the missingkeyboard during POST.

Keyboard is locked out - Unlock the keyThis message usually indicates that one or more keys have beenpressed during the keyboard tests. Be sure nothing (including yourhand) is resting on the keyboard.

Memory Test :This message appears during a full memory test, and counts down thememory areas to be tested.

Memory test failIf POST detects an error during memory testing, additional informationappears, giving details about the type and location of the memory error.

Override enabled - Defaults loadedIf the system cannot boot using the current CMOS configuration, theBIOS can override the current configuration with a set of BIOSdefaults designed for the most stable, minimal-performance systemoperations.

64

Chapter 6

Press ESC to skip memory testYou may press <Esc> to skip the full memory test.

Press TAB to show POST screenSystem OEMs may replace the Award BIOS POST display with theirown proprietary display. Including this message in the OEM displaypermits the operator to switch between the OEM display and thedefault POST display.

Primary master hard disk failPOST has detected an error in the primary master IDE hard drive.

Primary slave hard disk failPOST has detected an error in the primary slave IDE hard drive.

Resuming from disk, Press TAB to show POST screenThe BIOS offers a save-to-disk feature for laptops. This message mayappear when the operator restarts the system after a save-to-disk shut-down. See the “Press TAB to show POST screen” explanation abovefor a description of this feature.

Secondary master hard disk failPOST has detected an error in the secondary master IDE hard drive.

Secondary slave hard disk failPOST has detected an error in the secondary slave IDE hard drive.

65

SY

ST

EM

POST

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66

Chapter 6

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68

Chapter 6

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69

SY

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Notice for the USACompliance Information Statement (Declaration of Conformity Proce-dure) DoCFCC Part 15: This Device complies with Part 15 of the FCC Rules.Operation is subject to the following conditions:1) this device may not cause harmful interference, and2) this device must accept any interference received including interfer-ence that may cause undesired operation. If this equipment does causeharmful interference to radio or television reception, which can bedetermined by turning the equipment off and on, the user is encouragedto try one or more of the following measures:

• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Plug the equipment into an outlet on a circuit different from

that of the receiver.• Consult the dealer or an experienced radio/television

technician for help.

Notice for CanadaThis apparatus complies with the Class B limits for radio interferenceas specified in the Canadian Department of Communications RadioInterference Regulations.

Cet appareil est conforme aux normes de Classe B d’ interference radiotel que spécifié par le Ministére Canadien des Communications dansles réglements d’interférence radio.

Notice for Europe (CE Mark)This product is in conformity with the Council Directive 89/336/EEC,92/31/EEC (EMC).

Document # D1147-001

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