AOpen AP5TC User Manual

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AP5TC

User's Guide

Printed in Taiwan

PART NO.: 49.87907.001 DOC. NO. : AP5TC-1-E9801A

AP5TC

Mainboard

User's Guide

Document Number : AP5TC-1-E9801A Model and Revision : For AP5TC revision 1.xx Manual Version : English, revision A Release Date : Jan 9, 1998

More help for latest information: Taiwan http://www.aopen.com.tw USA http://www.aopen-usa.com

http://www.aopenamerica.com

Europe http://www.aopen.nl

Copyright

Copyright  1998 by this company. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, manual or otherwise, without the prior written permission of this company.

Disclaimer

This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Any software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not this company, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software. Further, this company reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation to notify any person of such revision or changes.

Intel and Pentium are registered trademarks of Intel Corporation. XT/AT is a registered trademark of International Business Machines Corporation. AMI is a registered trademark of American Megatrends Inc. AWARD is a registered trademark of Award Software Inc.

Other brand and product names are trademarks and/or registered trademarks of their respective holders.

iii

Organization

Chapter 1, Overview, covers the introduction and specifications of the system board.

Chapter 2, Hardware Installation, describes hardware jumpers, connectors and memory configuration. There are user friendly drawings to locate jumper and connector.

Chapter 3, AWARD BIOS, explains the system BIOS and tells how to configure the system by setting the BIOS parameters.

Appendix A, Frequently Asked Question, collects most frequently asked question of this product.

Appendix B, Troubleshooting Guide, includes first aid information you need if you meet trouble, the WWW address and worldwide service telephone/fax are also included.

Appendix C, Jumper Table Summary, gives you a tabular summary of the jumper settings discussed in Chapter 2.

Conventions

The following conventions are used in this manual:

Text entered by user, default settings, recommended selections

<Enter>, <Tab>,<Ctl>, <Alt>, <Ins>, <Del>, etc

Represent text input by the user, default settings and recommended selections

Represent the actual keys that you have to press on the keyboard.

Note:

Gives bits and pieces of additional information related to the current topic.

Warning:

Alerts you to any damage that might result from doing or not doing specific actions.

Caution:

Suggests precautionary measures to avoid potential hardware or software problems.

Important:

Reminds you to take specific action relevant to the accomplishment of the procedure at hand.

Tip:

Tells how to accomplish a procedure with minimum steps through little shortcuts.

CHAPTER 1 OVERVIEW

1.1 SPECIFICATIONS.................................................................................3

1.2 SUSPEND TO HARD DRIVE ..................................................................5

1.3 CPU THERMAL PROTECTION ..............................................................8

1.4 PCI SOUND CARD CONNECTOR...........................................................9

CHAPTER 2 HARDWARE INSTALLATION

2.1 JUMPERS AND CONNECTOR LOCATIONS..............................................2

2.2 JUMPERS........................................................................................... 4

2.2.1 Setting the CPU Voltage ............................................................5

2.2.2 Selecting the CPU Frequency....................................................8

2.2.3 Clearing the CMOS..................................................................12

2.3 CONNECTORS ..................................................................................13

2.3.1 Power Cable.............................................................................13

2.3.2 CPU Fan...................................................................................14

2.3.3 PS/2 Mouse..............................................................................14

2.3.4 Serial Devices (COM1/COM2).................................................15

2.3.5 USB Device (optional)..............................................................15

2.3.6 Floppy Drive.............................................................................16

2.3.7 Printer.......................................................................................16

2.3.8 IDE Hard Disk and CD ROM....................................................17

2.3.9 Hard Disk LED .........................................................................18

2.3.10 Panel Connector.....................................................................19

2.3.11 Keyboard................................................................................20

2.3.12 IrDA Connector ......................................................................21

2.3.13 SB-LINK .................................................................................22

2.4 INSTALLING THE SYSTEM MEMORY....................................................23

CHAPTER 3 AWARD BIOS

3.1 ENTERING THE AWARD BIOS SETUP MENU ........................................2

3.2 STANDARD CMOS SETUP .................................................................. 3

3.3 BIOS FEATURES SETUP.....................................................................6

3.4 CHIPSET FEATURES SETUP............................................................... 11

3.5 POWER MANAGEMENT SETUP........................................................... 17

3.6 PNP/PCI CONFIGURATION SETUP ....................................................22

3.7 LOAD SETUP DEFAULTS ...................................................................26

3.8 LOAD TURBO DEFAULTS...................................................................26

3.9 INTEGRATED PERIPHERALS...............................................................27

3.10 PASSWORD SETTING ......................................................................32

3.11 IDE HDD AUTO DETECTION ...........................................................32

3.12 SAVE & EXIT SETUP.......................................................................32

3.13 EXIT WITHOUT SAVING....................................................................33

3.14 NCR SCSI BIOS AND DRIVERS .....................................................33

3.15 BIOS FLASH UTILITY......................................................................34

APPENDIX A FREQUENTLY ASKED QUESTION

APPENDIX B TROUBLESHOOTING

APPENDIX C JUMPER TABLE SUMMARY

vii

Chapter 1

Overview

The AP5TC is a high-performance Pentium-based system board that utilizes the PCI/ISA architecture and Baby AT form factor. It integrates the Intel 82430TX PCIset, a Super I/O controller, and a PCI mode 4 enhanced IDE controller with bus master and Ultra DMA/33 to enhance system performance. It has 512KB pipelined-burst second-level cache onboard and support four single in-line memory module (SIMM) plus two Dual in-line memory module (DIMM) that allow to mix EDO and SDRAM memory and expansion up to a maximum of 256MB. For the memory and IDE performance, the Intel 430TX chipset is currently the fastest Pentium chipset in the market.

In addition, AP5TC also implements many special features as following. Switching Power Regulator Although Linear Regulator is good enough for

AMD K6, AP5TC uses switching requlator to reserve the upgrade capability for new generation CPU.

Over-current Protection AP5TC implements CPU core voltage 15A overcurrent protection to prevent any accident short circuit and prevent system damage.

CPU Thermal Protection When CPU temperature is higher than a predefined value, the CPU speed will automatically slow down and there will be warning from BIOS and also ADM (AOpen Desktop Manager, similar as Intel LDCM), if ADM is installed.

Full-range CPU core voltage This motherboard supports the CPU core voltage from 1.3V to 3.5V, that can be applied to various CPU type in future.

Resetable Fuse AP5TC implements resetable fuses to prevent any accidental short circuit caused by keyboard or USB devices hot plug.

PCI Sound Card connector The SB-LINK connector can be used to link Creative-compatible PCI sound card. If you have a Creative PCI sound card installed, it is necessary to link the card to this connector for compatibility issue under DOS environment.

1-1

Overview

FCC DoC certificate The AP5TC has also passed FCC DoC test, this means you can use any kind of housing with very low EMI radiation.

Powerful utility softwares supported AOpen Bonus Pack bundled CD contains many useful utilities, such as ADM (Advanced Desktop Manager), AOchip, Hardware Monitor utility, AcePhone, EasyAxess, Suspend to Hard Drive utility, and BIOS flash utility.

1-2

1.1 Specifications

Overview

Form Factor Board Size CPU

System Memory

Second-level Cache Chipset Expansion Slots Serial Port

Parallel Port

Floppy Interface

IDE Interface

USB Interface

PS/2 Mouse Keyboard

RTC and Battery BIOS

Baby AT 220 mm x 250 mm Intel Pentium Processor P54C, PP/MT (P55C), AMD K5/K6,

Cyrix 6x86 and IDT C6. FPM (Fast Page Mode) or EDO (Extended Data Output) 72-pin

SIMM x4, and SDRAM 168-pin x2 maximum 256MB. 256KB or 512KB pipelined-burst cache onboard. Intel 82430TX PCIset ISA x3 and PCI x4 Two serial ports UART 16C550 compatible, and the 3rd

UART for IR function. One parallel port supports standard parallel port (SPP),

enhanced parallel port (EPP) or extended capabilities port (ECP).

Floppy interface supports 3.5 inches drives with 720KB,

1.44MB or 2.88MB format or 5.25 inches drives with 360KB,

1.2MB format. Dual-channel IDE interface support maximum 4 IDE hard

disks or CDROM, mode 4 , bus master hard disk drives and Ultra DMA/33 mode hard drives are also supported.

Two USB ports supported by USB bracket, the BIOS also supports USB driver to simulate legacy keyboard.

PS/2 mouse supported by PS/2 mouse bracket. Default AT compatible keyboard, mini-DIN PS/2 keyboard

connector is optional. RTC build in Intel PIIX4 chipset, Lithium (CR-2032) battery. AWARD Plug-and-Play Flash ROM BIOS

1-3

Overview

Suspend to Hard Drive

Switching Regulator Over-current

Protection CPU Thermal

Protection SB-LINK connector

supported

Supported by BIOS, save your work to hard disk and resume within a very short time. VESA compatible VGA and Sound Blaster compatible sound card required.

High efficient switching regulator for future CPU. CPU core voltage 15A over-current protection to prevent any

accident short circuit. Warning when CPU temperature is higher than the predefined

value. The SB-LINK connector can be used to link Creative PCI

sound card.

1-4

Overview

1.2 Suspend to Hard Drive

Suspend to Hard Drive saves your current work (system status, memory and screen image) into hard disk, and then the system can be totally power off. Next time, when power is on, you can resume your original work directly from hard disk within few second without go through the Win95 booting process and run your application again. If your memory is 16MB, normally, you need to reserve at least 16MB HDD space to save your memory image. Note that you have to use VESA compatible PCI VGA (AOpen PV70/PT70), Sound Blaster compatible sound card and sound driver that supports APM (AOpen AW35 or MP56) for Suspend to Hard Drive to work properly. Of course, we recommend to use AOpen products for best compatibility.

Although Suspend to Hard Drive is so powerful, it is actually a little complicated to set up this function. To use Suspend to Hard Drive, please make sure you have read the following in detail.

1. Go into BIOS setup, Power Management "Suspend to Disk".

2. Go into BIOS setup, PNP/PCI Configuration à PnP OS Installed, select "No". This can give BIOS the capability to allocate system resources for Suspend to Hard Drive.

3. Bootup your system into DOS command prompt. If you are Win'95 user, Please restart your Windows 95 under "Command Prompt" by pressing "F8" while system shows "Windows 95 Starting ...". Choose "Safe Mode Command Prompt Only" from selection so that system will start in DOS command prompt.

4. Copy AOZVHDD.EXE to the root directory of your C: drive.

Option 1: Use /file switch (applied to FAT16 file system):

5. Please use following command to create a hidden file in the root directory of

your hard disk for Suspend to Hard Drive to save the system status and memory image.

C:>AOZVHDD /c /file

Please make sure that you have enough continuous HDD space for creating this hidden file. For example, if you have 32MB of system memory and 4MB of VGA memory, you need at least 36MB (32MB + 4MB) of continuous HDD space. If AOZVHDD failed to allocate the HDD space, you may run "DEFRAG" Utility or "Disk Defragmenter" which come with MSDOS or Win'95 to free HDD space.

à Suspend Mode Option, select

1-5

Overview

Option2: Use /partiton switch (applied to FAT16/FAT32 file system):

To create a separate partiton for Suspend to Hard Drive, please make sure you have allocated a free partition. We suggest you reserve the free partition which space is appropriate for your future memory expansion. For example, if you have 32MB of system memory and 4MB of VGA memory currently, but you plan to upgrade system memory to 64MB in the near future, then you may reserve a 68MB (64MB+4MB) space by using a disk utility (such as fdisk). Next, use following command to create a suspend partition:

C:>AOZVHDD /c /partition

If there is no extra free partition and you don't want your data lost, please do not use this partition method.

6. After creating above partition or hidden file, please reboot your system.

7. Push suspend switch (momentary mode) or use Win95 Suspend icon to force system goes into Suspend to Hard Drive mode and then turn system power off by power switch of your power supply.

8. Next time when you turn on your system, it will resume to your original work automatically.

Warning: Note that Intel Bus Master and Ultra DMA/33 IDE driver are not fully compatible with Suspend to Hard Drive function, installing these drivers may cause the system unstable. Under this situation, please uninstall the drivers.

1-6

Warning: This function does not support SCSI hard

disks.

Overview

Tip: Following VGA card have been tested & recognized as VESA compatible VGA device.

AOpen PV90 (Trident 9680) AOpen PT60 (S3 Virge/BIOS R1.00-01) AOpen PV60 (S3 Tiro64V+) AOpen PT70 (S3 Virge/DX) ProLink Trident GD-5440 ProLink Cirrus GD-5430 ProLink Cirrus GD-5446 ATI Mach 64 GX ATI 3D RAGE II Diamond Stealth64D (S3 868) Diamond Stealth64V (S3 968) KuoWei ET-6000.

Tip: Following Sound card have been tested OK for Suspend to Hard Drive.

AOpen AW32 AOpen AW35 AOpen MP56 Creative SB 16 Value PnP Creative SB AWE32 PnP ESS 1868 PnP If your sound card can not work after resume from

Suspend to Hard Drive, check your sound card vendor see if there is driver to support APM, and install it again.

Note: The USB function has not been tested for Suspend to Hard Drive. If you find any unstable problem, please go into BIOS, Integrated Peripherals à USB Legacy Support. Disable the USB Legacy function.

1-7

Overview

1.3 CPU Thermal Protection

This motherboard implements special thermal protection circuit below the CPU. When temperature is higher than a predefined value, the CPU speed will automatically slow down and there will be warning from BIOS and also ADM (AOpen Desktop Manager, similar as Intel LDCM) or Hardware Monitor utility software.

ADM is a very powerful network and hardware monitor software. If you do not need network monitor function, you may also use Hardware Monitor utility, which is a small utility for hardware monitoring. Both ADM and Hardware Monitor utility are available on the bundled CD and our web site (hhtp://www.aopen.com.tw).

CPU Thermal Protection is automatically implemented by BIOS and utility software, no hardware installation is needed.

1-8

Overview

1.4 PCI Sound Card connector

AP5TC implements a SB-LINK connector to support Creative-compatible PCI sound card. If you have a Creative-compatible PCI sound card installed, it is necessary to link the card to SB-LINK connector for compatibility issue under DOS environment.

1-9

Chapter 2

Hardware Installation

This chapter gives you a step-by-step procedure on how to install your system. Follow each section accordingly.

Caution: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component.

1. Do not remove a component from its protective packaging until you are ready to install it.

2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a component. If a wrist strap is not available, maintain contact with the system unit throughout any procedure requiring ESD protection.

2-1

Hardware Installation

2.1 Jumpers and Connector Locations

The following figure shows the locations of the jumpers and connectors on the system board:

I S A

HDD LED

PANEL

USB

KB1

PS2 MS

P C I 4

SB-LINK

BIOS

P C I

IrDA

PWR1

IDE1

FDC

IDE2

COM2

COM1

I M M

PRINTER

PiiX4

SW1

JP14

JP4

FAN

JP12

JP5 JP6

2-2

Hardware Installation

Jumpers

SW1: DIP Switch for CPU voltage and clock ratio JP4,JP5,JP6: CPU external (bus) clock JP12: I/O Voltage JP14: Clear CMOS

Connectors

KB1: AT keyboard connector PWR1: AT (PS/2) power connector PS2 MS: PS/2 mouse connector USB: USB connector COM1: COM1 connector COM2: COM2 connector FDC: Floppy drive connector PRINTER: Printer connector IDE1: IDE1 primary channel IDE2: IDE2 secondary channel FAN: CPU fan connector IrDA: IrDA (Infrared) connector HDD LED: HDD LED connector PANEL: Front panel (Multifunction) connector SB-LINK: Creative PCI sound card connector

2-3

Hardware Installation

2.2 Jumpers

Jumpers are made by pin headers and plastic connecting caps for the purpose of customizing your hardware. Doing so requires basic knowledge of computer hardware, be sure you understand the meaning of the jumpers before you change any setting. The onboard jumpers are normally set to their default with optimized settings.

On the mainboard, normally there is a bold line marked beside pin 1 of the jumper, sometimes, there are numbers also. If we connect (short) plastic cap to pin 1 and 2, we will say set it at 1-2, and when we say jumper is open, that means no plastic cap connected to jumper pins.

Open

1 2

Short

1 2

Jumper set at 1-2

1 2

Jumper set at 2-3

1 2

2-4

2.2.1 Setting the CPU Voltage

ON OFF OFF ON OFF OFF OFF

ON ON OFF OFF OFF ON ON

ON ON ON OFF OFF OFF OFF

ON ON ON ON ON OFF

OFF OFF OFF OFF OFF OFF ON

Vcore

3.52V

3.45V

3.2V

2.9V

2.8V

2.2V

1.8V

Hardware Installation

SW1 is used to select CPU core voltage (Vcore) and ratio, there are totally eight switches on the DIP. After installing a CPU, remember to set the switch 4-8 to specify a proper Vcore.

1 2 3 4 5 6 7 8

2.9V

K6-166/200 or M2

1 2 3 4 5 6 7 8

2.8V

Intel P55C (MMX)

1 2 3 4 5 6 7 8

3.52V

Cyrix 6x86 or AMD K5

1 2 3 4 5 6 7 8

3.45V

Intel P54C or IDT C6

1 2 3 4 5 6 7 8

2.2V

K6-266/300

1 2 3 4 5 6 7 8

1.8V

Reserved for future use

3.2V

AMD K6-233

2-5

Hardware Installation

Warning: Please make sure that you have installed CPU fan properly if Intel PP/MT-233 or AMD K6 CPU is being selected to use. It may cause your system unstable if you can not meet the heat dissipation requirement from above CPU type. It is recommended to adopt larger fan on these CPU for better air flow in the system. Please refer to AOpen 's web site (http://www.aopen.com.tw) to choose a proper CPU fan.

Tip: Normally, for single voltage CPU, Vcpuio (CPU I/O Voltage) is equal to Vcore, but for CPU that needs dual voltage such as PP/MT (P55C) or Cyrix 6x86L, Vcpuio is different from Vcore and must be set to Vio (PBSRAM and Chipset Voltage). The single or dual voltage CPU is automatically detected by hardware circuit.

Tip: For supporting more different CPUs in future, this motherboard uses five switchs to specify Vcore. There are 32 settings totally, and the range is from 1.3V to 3.5V.

CPU Type S4 S5 S6 S7 S8 Vcore

INTEL P54C Single Voltage OFF ON ON ON OFF 3.45V INTEL MMX P55C Dual Voltage OFF OFF OFF ON OFF 2.8V AMD K5 Single Voltage ON ON ON ON OFF 3.52V AMD K6-166/200 Dual Voltage ON OFF OFF ON OFF 2.9V AMD K6-233 Dual Voltage OFF OFF ON ON OFF 3.2V AMD K6-266/300 Dual Voltage OFF ON OFF OFF OFF 2.2V Cyrix 6x86 Single Voltage ON ON ON ON OFF 3.52V Cyrix 6x86L Dual Voltage OFF OFF OFF ON OFF 2.8V Cyrix M2 Dual Voltage ON OFF OFF ON OFF 2.9V IDT C6 Single Voltage OFF ON ON ON OFF 3.45V

2-6

Hardware Installation

This motherboard supports the CPU core voltage from 1.3V to 3.5V, that can be applied to the various CPU type in future. For your reference, all settings are listed in the following table.

Vcore

1.30V

1.35V

1.40V

1.45V

1.50V

1.55V

1.60V

1.65V

1.70V

1.75V

1.80V

1.85V

1.90V

1.95V

2.00V

2.05V

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

OFF

OFF OFF

ON OFF OFF

OFF OFF OFF OFF

ON ON ON

ON OFF OFF OFF OFF

OFF OFF OFF OFF OFF OFF OFF OFF

ON ON ON ON ON ON ON

ON OFF OFF OFF OFF OFF OFF OFF OFF

ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON

ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

2-7

Hardware Installation

JP12

1-2 3-4

I/O Voltage (Vio)

3.3 (default)

3.45V

JP12 is reserved for testing purposes only. This jumper enables you to set the voltage of the onboard chipset and PBSRAM (Vio). For dual-voltage CPU, JP12 also functions as CPU I/O voltage (Vcpuio) controller.

JP12

1 2 3

3.3V

(default)

JP12

1 2 3

3.45V

2.2.2 Selecting the CPU Frequency

Intel Pentium, Cyrix 6x86, AMD K5/K6 and IDT C6 CPU are designed to have different Internal (Core) and External (Bus) frequency.

Core frequency = Ratio * External bus clock

2-8

OFF ON ON OFF ON ON OFF

OFF OFF ON ON OFF ON ON

OFF OFF OFF OFF ON ON ON

CPU Frequency Ratio

1.5x (3.5x) 2x

2.5x (1.75x) 3x 4x

4.5x

Note: Intel PP/MT MMX 233MHz is using 1.5x jumper setting for 3.5x frequency ratio, and AMD PR166 is using 2.5x setting for 1.75x frequency ratio.

The ratio of Core/Bus frequency is selected by the switch 1-3 of SW1.

Hardware Installation

JP4

1-2 2-3 1-2 2-3

JP5

2-3 1-2 2-3 1-2

1 2 3 4 5 6 7 8

1.5x (3.5x)

1 2 3 4 5 6 7 8

2.5x (1.75x)

1 2 3 4 5 6 7 8

4.5x

1 2 3 4 5 6 7 8

Note: Intel PP/MT 233MHz is using 1.5x jumper setting for

3.5x frequency ratio, and AMD PR166 is using 2.5x setting for

1.75x frequency ratio.

JP6

1-2 1-2 2-3 2-3

CPU External Clock

60MHz 66MHz 75MHz

83.3MHz

JP4, JP5 and JP6 are the selections of CPU external clock (bus clock), which is actually the clock from clock generator.

JP4 JP5 JP6

1 2 3 1 2 3 1 2 3

60MHz

JP4 JP5 JP6

1 2 3 1 2 3 1 2 3

75MHz

JP4 JP5 JP6

1 2 3 1 2 3 1 2 3

66MHz

JP4 JP5 JP6

1 2 3 1 2 3 1 2 3

83.3mhz

2-9

Hardware Installation

Warning: INTEL TX chipset supports only 60/66MHz external CPU bus clock, the 75/83.3MHz settings are for internal test only, set to 75/83.3MHz exceeds the

specification of TX chipset, which may cause serious system damage.

Caution: Following table are possible settings of current

CPU available on the market. The correct setting may vary because of new CPU product, refer to your CPU specification for more details.

Warning: Cyrix 6x86 P200+ uses 75MHz external clock, the jumper setting shown on the table below is for user's convenient. It may cause serious system damage to use 75MHz clock.

INTEL Pentium

P54C 90 90MHz = 1.5x 60MHz OFF OFF OFF 1-2 & 2-3 & 1-2 P54C 100 100MHz = 1.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 P54C 120 120MHz = 2x 60MHz ON OFF OFF 1-2 & 2-3 & 1-2 P54C 133 133MHz = 2x 66MHz ON OFF OFF 2-3 & 1-2 & 1-2 P54C 150 150MHz = 2.5x 60MHz ON ON OFF 1-2 & 2-3 & 1-2 P54C 166 166MHz = 2.5x 66MHz ON ON OFF 2-3 & 1-2 & 1-2 P54C 200 200MHz = 3x 66MHz OFF ON OFF 2-3 & 1-2 & 1-2

INTEL Pentium MMX

PP/MT 150 150MHz = 2.5x 60MHz ON ON OFF 1-2 & 2-3 & 1-2 PP/MT 166 166MHz = 2.5x 66MHz ON ON OFF 2-3 & 1-2 & 1-2 PP/MT 200 200MHz = 3x 66MHz OFF ON OFF 2-3 & 1-2 & 1-2 PP/MT 233 233MHz = 3.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2

AMD K5 CPU Core

PR90 90MHz = 1.5x 60MHz OFF OFF OFF 1-2 & 2-3 & 1-2 PR100 100MHz = 1.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 PR120 90MHz = 1.5x 60MHz OFF OFF OFF 1-2 & 2-3 & 1-2 PR133 100MHz = 1.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 PR166 116MHz = 1.75x 66MHz ON ON OFF 2-3 & 1-2 & 1-2

CPU Core Frequency

Frequency

Ratio External

Bus Clock

Ratio External

Bus Clock

Ratio External

Bus Clock

S1 S2 S3 JP4 & JP5 & JP6

2-10

Hardware Installation

AMD K6 CPU Core

PR2-166 166MHz = 2.5x 66MHz ON ON OFF 2-3 & 1-2 & 1-2 PR2-200 200MHz = 3x 66MHz OFF ON OFF 2-3 & 1-2 & 1-2 PR2-233 233MHz = 3.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 PR2-266 266MHz= 4x 66MHz ON OFF ON 2-3 & 1-2 & 1-2 PR2-300 300MHz= 4.5x 66MHz ON ON ON 2-3 & 1-2 & 1-2

Cyrix 6x86 & 6x86L

P150+ 120MHz = 2x 60MHz ON OFF OFF 1-2 & 2-3 & 1-2 P166+ 133MHz = 2x 66MHz ON OFF OFF 2-3 & 1-2 & 1-2 P200+ 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 2-3

Cyrix M2 CPU Core

MX-PR166 150MHz = 2.5x 60MHz ON ON OFF 1-2 & 2-3 & 1-2 MX-PR200 166MHz =

MX-PR233 200MHz =

MX-PR266 233MHz = 3.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2

IDT C6 CPU Core

C6-150 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 2-3 C6-180 180MHz = 3x 60MHz OFF ON OFF 1-2 & 2-3 & 1-2 C6-200 200MHz = 3x 66MHz OFF ON OFF 2-3 & 1-2 & 1-2

Frequency

CPU Core Frequency

Frequency

150MHz=

166MHz=3x2x

Frequency

Ratio External

2.5x 2x

Ratio External

Bus Clock

66MHz 75MHz 66MHz

83.3MHz

Bus Clock

S1 S2 S3 JP4 & JP5 & JP6

ONONON

OFFONON

S1 S2 S3 JP4 & JP5 & JP6

OFF

2-3 & 1-2 & 1-2

OFF

1-2 & 2-3 & 2-3

OFF

2-3 & 1-2 & 1-2

OFF

2-3 & 1-2 & 2-3

Note: Cyrix 6x86 and AMD K5 CPU use P-rating for the reference of CPU benchmark compared with INTEL P54C, their internal core frequency is not exactly equal to P-rating marked on the CPU. For example, Cyrix P166+ is 133MHz but performance is almost equal to P54C 166MHz and AMD PR133 is 100MHz but performance is almost equal to INTEL P54C 133MHz.

Note: INTEL TX chipset does not support CPU with 50/55MHz external bus clock, so that P54C 75MHz, Cyrix P120+,P133+ and AMD PR75 are not supported by this mainboard.

2-11

Hardware Installation

2.2.3 Clearing the CMOS

JP14

1-2

2-3

Clear CMOS

Normal operation (default) Clear CMOS

You need to clear the CMOS if you forget your system password. To clear the CMOS, follow the procedures listed below:

Normal Operation

(default)

The procedure to clear CMOS:

1. Turn off the system power.

2. Locate

3. Return

4. Turn on the system power.

5. Press

JP14 and short pins 2-3 for a few seconds. JP14 to its normal setting by shorting pins 1-2.

during bootup to enter the BIOS Setup Utility and specify a new

password, if needed.

JP14

1 2 3

JP14

1 2 3

Clear CMOS

2-12

Hardware Installation

(+5V)

2.3 Connectors

2.3.1 Power Cable

A standard baby AT (PS/2) power supply has two cables with six wires on each. Plug in these cables to the onboard power connector in such a way that all the black wires are in the center. The power connector is marked as PWR1 on the system board.

Caution: Make sure that the power supply is off before connecting or disconnecting the power cable.

Black wire (GND)

Red wire

PWR1

2-13

Hardware Installation

3 1 2 4

2.3.2 CPU Fan

Plug in the fan cable to the two-pin fan connector onboard. The fan connector is marked CPUFAN on the system board. Attach the heatsink and fan to the CPU. Check its orientation, make sure the air flow go through the heatsink.

+12V GND

CPUFAN

2.3.3 PS/2 Mouse

To connect a PS/2 mouse, insert the PS/2 mouse bracket connector to PS2

on the system board. Then plug in the PS/2 mouse cable to the mouse port on the bracket.

2-14

1 2 3 4 5 6

5 6

PS2 MS

Description

MS DATA NC GND +5V MS CLK NC

Hardware Installation

2.3.4 Serial Devices (COM1/COM2)

To support serial devices, insert the serial device connector into the serial port on the bracket. Plug in the 10-pin flat cable to the appropriate onboard connectors. The serial port 1 connector is marked as COM1 and the serial port 2 connector is marked as COM2 on the system board.

2.3.5 USB Device (optional)

You need a USB bracket to have your system to support additional USB device(s). To attach a USB bracket, simply insert the bracket cable to the onboard USB connector marked

USB.

1 3 5 7 9

COM2

COM1

Description

V0 D0D0+ GND NC

Description

D1-

D1+

GND

9 10

USB

2-15

Hardware Installation

2.3.6 Floppy Drive

Connect the 34-pin floppy drive cable to the floppy drive connector marked as

FDC on the system board.

FDC

2.3.7 Printer

Plug in the 26-pin printer flat cable to the onboard parallel connector marked as PRINTER on the board.

PRINTER

2-16

Hardware Installation

2.3.8 IDE Hard Disk and CD ROM

This mainboard supports two 40 pin IDE connectors marked as IDE1 and IDE2. IDE1 is also known as primary channel and IDE2 as secondary channel, each channel supports two IDE devices that makes total of four devices.

In order to work together, the two devices on each channel must be set differently to master and slave mode, either one can be hard disk or CDROM. The setting as master or slave mode depends on the jumper on your IDE device, please refer to your hard disk and CDROM manual accordingly.

Connect your first IDE hard disk to master mode of the primary channel. If you have second IDE device to install in your system, connect it as slave mode on the same channel, and the third and fourth device can be connected on secondary channel as master and slave mode respectively.

IDE1 IDE2

Caution: The specification of IDE cable is maximum 46cm (18 inches), make sure your cable does not excess this length.

Caution: For better signal quality, it is recommended to set far end side device to master mode and follow the suggested sequence to install your new device . Please refer to following figure.

2-17

Hardware Installation

(1st)

(2nd)

IDE1 (Primary Channel)

Slave

IDE2 (Secondary Channel)

Slave

(4th)

2.3.9 Hard Disk LED

The HDD LED connector is marked as HDD LED on the board. This connector is designed for different type of housing, actually only two pins are necessary for the LED. If your housing has four pin connector, simply plug it in. If you have only two pin connector, please connect to pin 1-2 or pin 3-4 according to the polarity.

1 2

HDD LED

4-pin connector

HDD LED

2-pin connector

1 2 3 4

at pin 1-2

Master

(3rd)

1 2 3

Master

Description

HDD LED GND GND HDD LED

1 2

HDD LED

2-pin connector

at pin 3-4

2-18

2.3.10 Panel Connector

Hardware Installation

The Panel (multifunction) connector is a 20pin connector marked as PANEL on the board. Attach the power LED, keylock, speaker, reset switch, suspend switch, and green mode LED connectors to the corresponding pins as shown in the figure.

Some housings have a five-pin connector for the keylock and power LED Since power LED and keylock are aligned together, you can still use this kind of connector.

Keylock

Power LED

Speaker

KEYLOCK

POWER LED

SPEAKER

10 20

GND GND

RESET

+5V

GND

Suspend SW

Reset

10 20

PANEL

+5V GND GREEN LED GND SUSPEND SW SUSPEND SW GND NC RESET GND

PANEL

Other housings may have a 12-pin connector. If your housing has this type of connector, connect it to PANEL

+5V

as shown in the figure. Make sure that the red wire of the connector is connected to +5V.

PANEL

2-19

Hardware Installation

KB1

Note: If your housing comes with a Turbo switch, you may use this connector for Suspend switch function.

Note: Pressing the Suspend switch allows you to manually force the system to suspend mode. However, this is possible only if the Power Management function in the BIOS Setup menu is enabled.

Warning: If you use toggle mode Turbo switch as Suspend switch, be sure to push it twice to simulate momentary mode. Otherwise the system may hang or fail to reboot.

2.3.11 Keyboard

The onboard keyboard connector is a five-pin AT-compatible connector marked as KB1. The view angle of drawing shown here is from back panel of the housing.

Note: The mini DIN PS/2 keyboard connector is optional.

PCB

2-20

Hardware Installation

2.3.12 IrDA Connector

Serial port 2 can be configured to support wireless infrared module, with this module and application software such as Laplink, user can transfer files to or from laptops, notebooks, PDA and printers. This mainboard supports IrDA (115Kbps, 1 meter) as well as ASK-IR (19.2Kbps).

Install infrared module onto

IrDA

connector and enable infrared function from BIOS setup, make sure to have correct orientation when you plug onto IrDA connector.

Note: Onboard serial port 2 (COM2) will not be available after IrDA connector is enabled.

IrDA

1 2 3 4 5 6

Description

+5V NC IRRX GND IRTX NC

2-21

Hardware Installation

2.3.13 SB-LINK

SB-LINK is used to connect Creative-compatible

PCI sound card. If you have a Creative-compatible PCI sound card installed, it is necessary to link the card to the connector for compatibility issue under DOS environment.

1 2 3 4 5 6

1 2

5 6

SB-LINK

Description

GNT# GND NC REQ# GND SIRQ#

2-22

Hardware Installation

Bank1

Bank0

168

2.4 Installing the System Memory

This mainboard has four 72 pin SIMM

Pin 1 of

DIMM2

Pin 1 of

DIMM1

Pin 1 of

The SIMM supported by this mainboard can be identified by 4 kinds of factors: I. Size: single side, 1Mx32 (4MB), 4Mx32 (16MB), 16Mx32 (64MB), and double

side, 1Mx32x2 (8MB), 4Mx32x2 (32MB), 16Mx32x2 (128MB).

II. Speed: 60ns or 70ns access time III. Type: FPM (Fast page mode) or EDO (Extended data output) IV. Parity: without parity (32 bit wide) or with parity (36 bit wide).

The DIMM supported by this motherboard are always 64-bit wide SDRAM, which can be identified by following factors:

I. Size: single side, 1Mx64 (8MB), 2Mx64 (16MB), 4Mx64 (32MB), 8Mx64

(64MB), 16Mx64 (128MB), and double side, 1Mx64x2 (16MB), 2Mx64x2 (32MB), 4Mx64x2 (64MB), 8Mx64x2 (128MB).

sockets (Single-in-line Memory Module) and two 168 pin DIMM socket (Dual-inline Memory Module) that allow you to install system memory from minimum 8MB up to maximum 256MB.

Tip: Here is a trick to check if your DIMM is single-side or double-side -- if there are traces connected to golden finger pin 114 and pin 129 of the DIMM, the DIMM is probably double-side; otherwise, it is single-side. Following figure is for your reference.

Pin 129

Pin 114

2-23

Hardware Installation

II. Speed: normally marked as -12, which means the clock cycle time is 12ns

and maximum clock of this SDRAM is 83MHz. Sometimes you can also find the SDRAM marked as -67, which means maximum clock is 67MHz.

III. Buffered and non-buffered: This motherboard supports non-buffered DIMMs.

You can identify non-buffered DIMMs and buffered DIMMs according to the position of the notch, following figure is for your reference:

Reserved

non-buffered

buffered

Because the positions are different, only non-buffered DIMMs can be inserted into

the DIMM sockets on this motherboard. Although most of DIMMs on current market are non-buffered, we still recommand you to ask your dealer for the correct type.

IV. 2-clock and 4-clock signals: Although both of 2-clock and 4-clock signals

are supported by this motherboard, we strongly recommand you to choose 4clock SDRAM in consideration of reliability.

Tip: To identify 2-clock and 4-clock SDRAM, you may check if there are traces connected to golden finger pin 79 and pin 163 of the SDRAM. If there are traces, the SDRAM is probably 4-clock; Otherewise, it is 2-clock.

V. Parity: This motherboard supports standard 64 bit wide (without parity)

SDRAM.

Because Pentium CPU has 64 bit bus width, the SIMM sockets are arranged in two banks of two sockets each, they are Bank0 and Bank1. Both SIMMs in each bank must be in the same size and type. It is allowed to have different speed and type in different bank, for example, 70ns FPM in one bank and 60ns EDO in another bank, in such case, each bank is independently optimized for maximum performance. The memory timing requires at least 70ns fast page mode DRAM chip, but for optimum performance, 60ns EDO DRAM is recommended.

2-24

Warning: The default memory timing setting is 60ns to

obtain the optimal performance. Because of the specification limitation, 70ns SIMM is recommended to be used only for CPU external clock 60MHz.

Hardware Installation

There is no jumper setting required for the memory size or type. It is automatically detected by the system BIOS. You can use any single side SIMM and DIMM combination list below for BANK0/BANK1 or DIMM socket, and the total memory size is to add them together. Note that because TX chipset

limitation, the maximum is only 256MB.

SIMM1 SIMM2 Subtotal of

Bank0

None None 0MB None None 0MB 4MB 4MB 8MB 4MB 4MB 8MB 8MB 8MB 16MB 8MB 8MB 16MB 16MB 16MB 32MB 16MB 16MB 32MB 32MB 32MB 64MB 32MB 32MB 64MB 64MB 64MB 128MB 64MB 64MB 128MB 128MB 128MB 256MB 128MB 128MB 256MB

DIMM1 Size of DIMM1 DIMM2 Size of DIMM2

None 0MB None 0MB 8MB 8MB 8MB 8MB 16MB 16MB 16MB 16MB 32MB 32MB 32MB 32MB 64MB 64MB 64MB 64MB 128MB 128MB 128MB 128MB 256MB 256MB 256MB 256MB

SIMM3 SIMM4 Subtotal of

Bank1

Total Memory Size = Subtotal of Bank0 + Subtotal of Bank1 + Size of DIMM1 + Size of DIMM2

For double side memory module, there is one limitation. This mainboard supports only 4 RAS# (Row address latch) signals for DRAM control. They can only be occupied by one DRAM module, they can not be shared. The simple rule is: If double side module at either Bank0 or DIMM1, the other must be empty. If you use at DIMM1, Bank0 must be empty. Bank1 and DIMM2 have the same

limitation

2-25

Hardware Installation

Double side module ateither Bank0 or DIMM1, the other must be empty.

Double side module at either Bank1 or DIMM2, theother must beempty.

Following table explains more about the RAS limitation. You can see that Bank0 1st side and DIMM1 2nd side use the same RAS0#, and Bank0 2nd side and DIMM1 1st side use the same RAS1#. If you are using single side SIMM at Bank0 and single side DIMM at DIMM1, it should be no problem. But only one double side DIMM or double side SIMM can be at Bank0 or DIMM1.

RAS0# RAS1# RAS2# RAS3#

Bank0 1st side

X X

Bank0 2nd side

X X

Bank1 1st side

X X

Bank1 2nd side

X X

DIMM1 1st side

DIMM1 2nd side

DIMM2 1st side

DIMM2 2nd side

Caution: Make sure that you install the same SIMM type and size for each bank.

Caution: There are some old DIMMs made by EDO or FPM memory chip, they can only accept 5V power and probably can not fit into the DIMM socket, make sure you have 3.3V true SDRAM DIMM before your insert it.

Tip: If you have DIMM made by 3V EDO, it is possible that TX chipset can support it. But because it is so rare, the only 3V EDO DIMM had been tested by this mainboard is Micron MT4LC2M8E7DJ-6.

Warning: Do not use SIMM and SDRAM DIMM together unless you have 5V tolerance SDRAM (such as Samsung or TI). The FPM/EDO operate at 5V while SDRAM operates at 3.3V. If you combine them together the system will temporary work fine; however after a few months, the SDRAM 3.3V data input will be damaged by 5V FPM/EDO data output line.

2-26

Hardware Installation

There is an important parameter affects SDRAM performance, CAS Latency Time. It is similar as CAS Access Time of EDO DRAM and is calculated as number of clock state. The SDRAM that AOpen had tested are listed below. If your SDRAM has unstable problem, go into BIOS "Chipset Features Setup", change CAS Latency Time to 3 clocks.

Manufacturer Model Suggested CAS

Latency Time

Samsung KM416511220AT-G12 2 Yes NEC D4S16162G5-A12-7JF 2 No Hitachi HM5216805TT10 2 No Fujitsu 81117822A-100FN 2 No TI TMX626812DGE-12 2 Yes TI TMS626812DGE-15 3 Yes TI TMS626162DGE-15 3 Yes TI TMS626162DGE-M67 3 Yes

5V Tolerance

The driving capability of new generation chipset is limited because the lack of memory buffer (to improve performance). This makes DRAM chip count an important factor to be taking into consideration when you install SIMM/DIMM. Unfortunately, there is no way that BIOS can identified the correct chip count, you need to calculate the chip count by yourself. The simple rule is: By visual inspection, use only SIMM with chip count less than 24 chips, and use only DIMM which is less than 16 chips.

Warning: Do not install any SIMM that contains more than 24 chips. SIMMs contain more than 24 chips exceed the chipset driving specification. Doing so may result in unstable system behavior.

Warning: Although Intel TX chipset supports x4 SDRAM chip. Due to loading issue, it is not recommended to use this kind of SDRAM.

Tip: The SIMM/DIMM chip count can be calculated by following example:

1. For 32 bit non-parity SIMM using 1M by 4 bit DRAM chip, 32/4=8 chips.

2. For 36 bit parity SIMM using 1M by 4 bit DRAM chip, 36/4=9 chips.

3. For 36 bit parity SIMM using 1M by 4 bit and 1M by 1 bit DRAM, the chip count will be 8 data chips(8= 32/4) plus 4

2-27

Hardware Installation

parity chips(4=4/1), total is 12 chips.

4. For 64 bit DIMM using 1M by 16 bit SDRAM, the chip count is 64/16=4 chips.

Following table list the recommended DRAM combinations of SIMM and DIMM:

SIMM Data chip

1M by 4 None 1Mx32 x1 8 4MB Yes 1M by 4 None 1Mx32 x2 16 8MB Yes 1M by 4 1M by 1 1Mx36 x1 12 4MB Yes 1M by 4 1M by 4 1Mx36 x1 9 4MB Yes 1M by 4 1M by 4 1Mx36 x2 18 8MB Yes 1M by 16 None 1Mx32 x1 2 4MB Yes 1M by 16 None 1Mx32 x2 4 8MB Yes 1M by 16 1M by 4 1Mx36 x1 3 4MB Yes 1M by 16 1M by 4 1Mx36 x2 6 8MB Yes 4M by 4 None 4Mx32 x1 8 16MB Yes 4M by 4 None 4Mx32 x2 16 32MB Yes 4M by 4 4M by 1 4Mx36 x1 12 16MB Yes 4M by 4 4M by 1 4Mx36 x2 24 32MB Yes

SIMM Data chip

16M by 4 None 16Mx32 x1 8 64MB Yes, but not

16M by 4 None 16Mx32 x2 16 128MB Yes, but not

16M by 4 16M by 4 16Mx36 x1 9 64MB Yes, but not

16M by 4 16M by 4 16Mx36 x2 18 128MB Yes, but not

SIMM Parity chip

Bit size per side

Single/ Double side

Chip count

SIMM size

Recommended

tested.

DIMM Data chip

1M by 16 1Mx64 x1 4 8MB Yes 1M by 16 1Mx64 x2 8 16MB Yes 2M by 8 2Mx64 x1 8 16MB Yes 2M by 8 2Mx64 x2 16 32MB Yes

Bit size per side

Single/ Double side

Chip count

DIMM size Recommended

2-28

Hardware Installation

DIMM Data chip

2M by 32 2Mx64 x1 2 16MB Yes, but not tested. 2M by 32 2Mx64 x2 4 32MB Yes, but not tested. 4M by 16 4Mx64 x1 4 32MB Yes, but not tested. 4M by 16 4Mx64 x2 8 64MB Yes, but not tested. 8M by 8 8Mx64 x1 8 64MB Yes, but not tested. 8M by 8 8Mx64 x2 16 128MB Yes, but not tested.

Bit size per side

Single/ Double side

Chip count

DIMM size Recommended

Warning: 64MB SIMMs using 16M by 4 bit chip (64M bit technology) are not available in the market and are not formally tested by AOpen quality test department yet. However they are supported by design specification from Intel and they will be tested as soon as they are available. Note that 64MB SIMMs using 16M by 1 bit chip (16M bit technology) have chip count exceed 24 and are strongly not recommended.

Tip: 8 bit = 1 byte, 32 bit = 4 byte. The SIMM size is represented by number of data byte (whether with or without parity), for example, the size of single side SIMM using 1M by 4 bit chip is 1Mx32 bit, that is, 1M x 4 byte= 4MB. For double side SIMM, simply multiply it by 2, that is, 8MB.

2-29

Hardware Installation

Following table are possible DRAM combinations that is NOT recommended:

SIMM Data chip

1M by 1 None 1Mx32 x1 32 4MB No 1M by 1 1M by 1 1Mx36 x1 36 4MB No 1M by 4 1M by 1 1Mx36 x2 24 8MB No 4M by 1 None 4Mx32 x1 32 16MB No 4M by 1 4M by 1 4Mx36 x1 36 16MB No 16M by 1 None 16Mx32 x1 32 64MB No 16M by 1 16M by 1 16Mx36 x1 36 64MB No

DIMM Data chip

4M by 4 4Mx64 x1 16 32MB No 4M by 4 4Mx64 x2 32 64MB No 16M by 4 16Mx64 x1 16 128MB No 16M by 4 16Mx64 x2 32 256MB No

SIMM Parity chip

Bit size per side

Single/ Double side

Chip count

SIMM size

DIMM size Recommended

Recommended

Memory error checking is supported by parity check. To use parity check you need 36 bit SIMM (32 bit data + 4 bit parity), which are automatically detected by BIOS.

Tip: The parity mode uses 1 parity bit for each byte, normally it is even parity mode, that is, each time the memory data is updated, parity bit will be adjusted to have even count "1" for each byte. When next time, if memory is read with odd number of "1", the parity error is occurred and this is called single bit error detection.

2-30

Chapter 3

Award BIOS

This chapter tells how to configure the system parameters. You may update your BIOS via AWARD Flash Utility.

Important: Because the BIOS code is the most often changed part of the mainboard design, the BIOS information contained in this chapter (especially the Chipset Setup parameters) may be a little different compared to the actual BIOS that came with your mainboard.

3-1

AWARD BIOS

3.1 Entering the Award BIOS Setup Menu

The BIOS setup utility is a segment of codes/routines residing in the BIOS Flash ROM. This routine allows you to configure the system parameters and save the configuration into the 128 byte CMOS area, (normally in the RTC chip

or directly in the main chipset). To enter the BIOS Setup, press POST (Power-On Self Test). The BIOS Setup Main Menu appears as follows.

during

Tip: Choose "Load Setup Defaults" for recommended optimal performance. Choose "Load Turbo Defaults" for best performance with light system loading. Refer to section 3.7.

The section at the bottom of the screen tells how to control the screen. Use the arrow keys to move between items, display, at the bottom of the screen displays a brief description of the highlighted item.

After selecting an item, press

3-2

to exit, and to save the changes before exit. Another section

to select or enter a submenu.

to color scheme of the

AWARD BIOS

3.2 Standard CMOS Setup

The "Standard CMOS Setup" sets the basic system parameters such as the date, time, and the hard disk type. Use the arrow keys to highlight an item and

or to select the value for each item.

Standard CMOS à Date

To set the date, highlight the Date parameter. Press current date. The date format is month, date, and year.

or to set the

Standard CMOS à Time

To set the time, highlight the Time parameter. Press current time in hour, minute, and second format. The time is based on the 24 hour military clock.

or to set the

3-3

AWARD BIOS

Standard CMOS à Primary Master à Type Standard CMOS à Primary Slave à Type Standard CMOS Standard CMOS à Secondary Slave à Type

Secondary Master à Type

Type

Auto User None 1 2 ... 45

Standard CMOS Standard CMOS

This item lets you select the IDE hard disk parameters that your system supports. These parameters are Size, Number of Cylinder, Number of Head, Start Cylinder for Pre-compensation, Cylinder number of Head Landing Zone and Number of Sector per Track. The default setting is Auto, which enables BIOS to automatically detect the parameters of installed HDD at POST (PowerOn Self Test). If you prefer to enter HDD parameters manually, select User. Select None if no HDD is connected to the system.

The IDE CDROM is always automatically detected.

Tip: For an IDE hard disk, we recommend that you use the "IDE HDD Auto Detection" to enter the drive specifications automatically. See the section "IDE HDD Auto Detection".

Primary Master à Mode

Primary Slave à Mode

Standard CMOS à Secondary Master à Mode

Standard CMOS

Mode

Auto Normal LBA Large

Secondary Slave à Mode

The enhanced IDE feature allows the system to use a hard disk with a capacity of more than 528MB. This is made possible through the Logical Block Address (LBA) mode translation. The LBA is now considered as a standard feature of current IDE hard disk on the market because of its capability to support capacity larger than 528MB. Note that if HDD is formatted with LBA On, it will not be able to boot with LBA Off.

3-4

Standard CMOS à Drive A Standard CMOS à Drive B

AWARD BIOS

Drive A

None 360KB 5.25"

1.2MB 5.25" 720KB 3.5"

1.44MB 3.5"

2.88MB 3.5"

Standard CMOS

Video

EGA/VGA CGA40 CGA80 Mono

Standard CMOS

Halt On

No Errors All Errors All, But Keyboard All, But Diskette All, But Disk/Key

These items select floppy drive type. The available settings and types supported by the mainboard are listed on the left.

Video

This item specifies the type of video card in use. The default setting is VGA/EGA. Since current PCs use VGA only, this function is almost useless and may be disregarded in the future.

Halt On

This parameter enables you to control the system stops in case of Power-On Self Test (POST) error.

3-5

AWARD BIOS

3.3 BIOS Features Setup

This screen appears when you select the option "BIOS Features Setup" from the main menu.

BIOS Features à Virus Warning

Virus Warning

Enabled Disabled

Type "Y" to accept write, or "N" to abort write

3-6

Set this parameter to Enabled to activate the warning message. This feature protects the boot sector and partition table of your hard disk from virus intrusion.

Any attempt during boot up to write to the boot sector of the hard disk drive stops the system and the following warning message appears on the screen. Run an anti-virus program to locate the problem.

! WARNING !

Disk Boot Sector is to be modified

Award Software, Inc.

BIOS Features à External Cache

AWARD BIOS

External Cache

Enabled Disabled

BIOS Features

Quick Power on Self test

Enable Disabled

BIOS Features

Boot Sequence

A,C,SCSI C,A,SCSI C,CDROM,A CDROM,C,A D,A,SCSI E,A,SCSI F,A,SCSI SCSI,A,C SCSI,C,A C only LS/ZIP,C

Enabling this parameter activates the secondary cache (currently, PBSRAM cache). Disabling the parameter slows down the system. Therefore, we recommend that you leave it enabled unless you are troubleshooting a problem.

Quick Power On Self Test

This parameter speeds up POST by skipping some items that are normally checked.

Boot Sequence

This parameter allows you to specify the system boot up search sequence. The hard disk ID are listed below:

C: Primary master D: Primary slave E: Secondary master F: Secondary slave LS: LS120 drive ZIP: IOMEGA ZIP drive

BIOS Features

Swap Floppy Drive

Enabled Disabled

Swap Floppy Drive

This item allows you to swap floppy drives. For example, if you have two floppy drives (A and B), you can assign the first drive as drive B and the second drive as drive A or vice-versa.

3-7

AWARD BIOS

BIOS Features à Boot Up NumLock Status

Boot Up NumLock Status

On Off

BIOS Features

Boot Up System Speed

High Low

BIOS Features

Typematic Rate Setting

Enabled Disabled

BIOS Features

Typematic Rate

6 8 10 12 15 20 24 30

Setting this parameter to On enables the numeric function of the numeric keypad. Set this parameter to Off to disregard the function. Disabling the numeric function allows you to use the numeric keypad for cursor control.

Boot Up System Speed

Select High or Low system speed after boot.

Typematic Rate Setting

Set this parameter to Enable/Disable the keyboard repeat function. When enabled, continually holding down a key on the keyboard will generate repeatedly keystrokes.

Typematic Rate (Chars/Sec)

This item allows you to control the speed of repeated keystrokes. The default is 30 characters/sec.

BIOS Features

Typematic Delay

250 500 750 1000

3-8

Typematic Delay (Msec)

This parameter allows you to control the delay time between the first and the second keystroke (where the repeated keystrokes begin). The typematic delay settings are 250, 500, 750, and 1000 msec.

BIOS Features à Security Option

AWARD BIOS

Security Option

Setup System

BIOS Features

PCI/VGA Palette Snoop

Enabled Disabled

The System option limits access to both the System boot and BIOS setup. A prompt asking you to enter your password appears on the screen every time you boot the system.

The Setup option limits access only to BIOS setup. To disable the security option, select Password Setting

from the main menu, don't type anything and just press <Enter>.

PCI/VGA Palette Snoop

Enabling this item informs the PCI VGA card to keep silent (and to prevent conflict) when palette register is updated (i.e., accepts data without responding any communication signals). This is useful only when two display cards use the same palette address and plugged in the PCI bus at the same time (such as MPEQ or Video capture). In such case, PCI VGA is silent while MPEQ/Video capture is set to function normally.

BIOS Features à OS Select for DRAM > 64MB

OS Select for DRAM > 64MB

OS/2 Non-OS/2

Set to OS/2 if your system is utilizing an OS/2 operating system and has a memory size of more than 64 MB.

BIOS Features à Video BIOS Shadow

Video BIOS Shadow

Enabled Disabled

VGA BIOS Shadowing means to copy video display card BIOS into the DRAM area. This enhances system performance because DRAM access time is faster than ROM.

3-9

AWARD BIOS

BIOS Features à C800-CBFF Shadow BIOS Features à CC00-CFFF Shadow BIOS Features BIOS Features à D400-D7FF Shadow BIOS Features BIOS Features à DC00-DFFF Shadow

D000-D3FF Shadow

D800-DBFF Shadow

C8000-CBFFF Shadow

Enabled Disabled

These six items are for shadowing ROM code on other expansion cards. Before you set these parameters, you need to know the specific addresses of that ROM code. If you do not know this information, enable all the ROM shadow settings.

Note: The F000 and E000 segments are always shadowed because BIOS code occupies these areas.

3-10

AWARD BIOS

3.4 Chipset Features Setup

The "Chipset Features Setup" includes settings for the chipset dependent features. These features are related to system performance.

Caution: Make sure you fully understand the items contained in this menu before you try to change anything. You may change the parameter settings to improve system performance . However, it may cause system unstable if the setting are not correct for your system configuration.

3-11

AWARD BIOS

Chipset Features à Auto Configuration

Auto Configuration

Enabled Disabled

Chipset Features

DRAM Timing

60 ns 70 ns

Chipset Features

DRAM Leadoff Timing

11/7/3/4 10/6/3/3 11/7/4/4 10/6/4/3

When Enabled, the DRAM and cache related timing are set to pre-defined value according to CPU type and clock. Select Disable if you want to specify your own DRAM timing.

DRAM Timing

There to sets of DRAM timing parameters can be automatically set by BIOS, 60ns and 70ns.

Warning: The default memory timing setting is 60ns to get the optimal performance. Because the specification limitation of INTEL TX chipset , 70ns SIMM can only be used with CPU external clock 60MHz. To use 70ns SIMM with 66MHz CPU external clock may result in unstable system behavior.

DRAM Leadoff Timing

The Leadoff means the timing of first memory cycle in the burst read or write. Actually, this item controls only page miss read/write leadoff timing and the clocks of RAS precharge and RAS to CAS delay. The four digital represent Read Leadoff/ Write Leadoff/ RAS Precharge/ RAS to CAS delay. For example, default is 10/6/3/3, which means you have 10-x-x-x DRAM page miss read and 6-x-x-x DRAM write, with 3 clocks RAS precharge and 3 clocks RAS to CAS delay.

3-12

Chipset Features à DRAM Read Burst (EDO/FP)

AWARD BIOS

DRAM Read Burst (EDO/FP)

x444/x444 x333/x444 x222/x333

Read Burst means to read four continuous memory cycles on four predefined addresses from the DRAM. The default value is x222/x333 for 60ns EDO or FPM (Fast Page Mode) DRAM. Which means the 2nd,3rd and 4th memory cycles are 2 CPU clocks for EDO and 3 clocks for FPM. The value of x is the timing of first memory cycle and depends on the "DRAM Leadoff Timing" setting.

Chipset Features à DRAM Write Burst Timing

DRAM Write Burst Timing

x444 x333 x222

Chipset Features

Fast EDO Lead Off

Enabled Disabled

Chipset Features

Write Burst means to write four continuous memory cycles on four predefined addresses to the DRAM. This item sets the DRAM write timing of the 2nd,3rd and 4th memory cycles. There is no difference of EDO and FPM DRAM on the write burst timing. The value of x depends on the "DRAM Leadoff Timing" setting.

Fast EDO Lead Off

This item enables fast EDO read timing, results 1 clock pull-in for read leadoff latency of EDO read cycles. It must be Disabled, if any FPM DRAM is installed.

Refresh RAS# Assertion

5 Clks 4 Clks

This item controls the number of clocks RAS is asserted for refresh cycle.

3-13

AWARD BIOS

Chipset Features à DRAM Page Idle Timer

DRAM Page Idle Timer

2 Clks 4 Clks 6 Clks 8 Clks

Chipset Features

DRAM Enhance Paging

Enabled Disabled

This item determines the amount of time in CPU clocks that DRAM page will be close after CPU becomes idle.

DRAM Enhance Paging

When Enabled, TX chipset will keep DRAM page open as long as possible according to enhanced method.

Chipset Features à SDRAM (CAS Lat/RAS-to-CAS)

SDRAM(CAS Lat/RAS-to-CAS)

2/2 3/3

These are timing of SDRAM CAS Latency and RAS to CAS Delay, calculated by clocks. They are important parameters affects SDRAM performance, default is 2 clocks. If your SDRAM has unstable problem, change 2/2 to 3/3.

Chipset Features à SDRAM Speculative Read

SDRAM Speculative Read

Enabled Disabled

Enable this item reduce one clock of SDRAM read leadoff timing by presenting the SDRAM read request before the controller chip decodes the final memory target. This Item must be Disabled if more than one DIMM is installed in the system.

Chipset Features

System BIOS Cacheable

Enabled Disabled

3-14

System BIOS Cacheable

Enabling this item allows you to cache the system BIOS to further enhance system performance.

Chipset Features à Video BIOS Cacheable

AWARD BIOS

Video BIOS Cacheable

Enabled Disabled

Chipset Features

8 Bit I/O Recovery Time

1 2 3 4 5 6 7 8 NA

Chipset Features

16 Bit I/O Recovery Time

1 2 3 4 NA

Allows the video BIOS to be cached to allow faster video performance.

8 Bit I/O Recovery Time

For some old I/O chips, after the execution of an I/O command, the device requires a certain amount of time (recovery time) before the execution of the next I/O command. Because of new generation CPU and mainboard chipset, the assertion of I/O command is faster, and sometimes shorter than specified I/O recovery time of old I/O devices. This item lets you specify the delay of 8-bit I/O command by count of ISA bus clock. If you find any unstable 8-bit I/O card, you may try to extend the I/O recovery time via this item. The BIOS default value is 4 ISA clock. If set to NA, the chipset will insert 3.5 system clocks.

16 Bit I/O Recovery Time

The same as 16-bit I/O recovery time. This item lets you specify the recovery time for the execution of 16bit I/O commands by count of ISA bus clock. If you find any of the installed 16-bit I/O cards unstable, try extending the I/O recovery time via this item. The BIOS default value is 1 ISA clocks. If set to NA, the chipset will automatically insert 3.5 system clocks.

3-15

AWARD BIOS

Chipset Features à Memory Hole At 15M-16M

Memory Hole At 15M-16M

Enabled Disabled

This option lets you reserve system memory area for special ISA cards. The chipset accesses code/data of these areas from the ISA bus directly. Normally, these areas are reserved for memory mapped I/O card.

Chipset Features à PCI Passive Release

PCI Passive Release

Enabled Disabled

Chipset Features

PCI Delayed Transaction

Enabled Disabled

This item lets you control the Passive Release function of the PIIX4 chipset (Intel PCI to ISA bridge). This function is used to meet latency of ISA bus master. Try to enable or disable it, if you have ISA card compatibility problem.

PCI Delayed Transaction

This item lets you control the Delayed Transaction function of the PIIX4 chipset (Intel PCI to ISA bridge). This function is used to meet latency of PCI cycles to or from ISA bus. Try to enable or disable it, if you have ISA card compatibility problem.

Chipset Features à Mem. Drive Str. (MA/RAS)

Mem. Drive Str. (MA/RAS)

10mA/10mA 10mA/16mA 16mA/10mA 16mA/16mA

This option controls the driving strength of memory address and control signals. It is recommended to use less driving current for light memory loading, to prevent undershoot or overshoot.

3-16

3.5 Power Management Setup

AWARD BIOS

The Power Management Setup screen enables you to control the mainboard green features. See the following screen.

Power Management à Power Management

Power Management

Max Saving Mix Saving User Defined Disabled

This function allows you to set the default parameters of power-saving modes. Set to Disable to turn off power management function. Set to User Defined to choose your own parameters.

’s

Mode Doze Standby Suspend HDD Power Down

Min Saving 1 hour 1 hour 1 hour 15 min Max Saving 1 min 1 min 1 min 1 min

3-17

AWARD BIOS

Power Management à PM Controlled by APM

PM Controlled by APM

Yes No

If "Max Saving" is selected, you can turn on this item, transfer power management control to APM (Advanced Power Management) and enhance power saving function. For example, stop CPU internal clock.

Power Management à Video Off After

Video Off After

N/A Doze Standby Suspend

Power Management

Break Switch

Enabled Disabled

To turn off video monitor at which power down mode.

Break Switch

Setting this item to Enabled allows you to use the Turbo switch as Suspend switch. Pressing the Turbo switch changes nothings for a Pentium system, so we usually use this switch to act as a Suspend switch. The default value of this item is Disabled.

Warning: If you use toggle mode Turbo switch as Suspend switch, be sure to push it twice to simulate momentary mode. Otherwise the system may hang or fail to reboot.

Power Management

Doze Mode

Disabled 1 Min 2 Min 4 Min 8 Min 12 Min 20 Min 30 Min 40 Min 1 Hour

3-18

Doze Mode

This item lets you set the period of time after which the system enters into Doze mode. In this mode, the CPU clock slows down. The ratio is specified in the "Throttle Duty Cycle". Any activity detected returns the system to full power. The system activity (or event) is detected by monitoring the IRQ signals.

Power Management à Standby Mode

AWARD BIOS

Standby Mode

Disabled 1 Min 2 Min 4 Min 8 Min 12 Min 20 Min 30 Min 40 Min 1 Hour

Power Management

Suspend Mode

Disabled 1 Min 2 Min 4 Min 8 Min 12 Min 20 Min 30 Min 40 Min 1 Hour

This item lets you set the period of time after which the system enters into Standby mode. In this mode, CPU clock slows down, hard disk will be shut off and the monitor power-saving feature activates. Any activity detected returns the system to full power. The system activity (or event) is detected by monitoring the IRQ signals.

Suspend Mode

This item lets you set the period of time after which the system enters into Suspend mode. The Suspend mode can be Power On Suspend or Suspend to Hard Drive, selected by "Suspend Mode Option".

Power Management

HDD Power Down

Disabled 1 Min

.....

15 Min

HDD Power Down

This option lets you specify the IDE HDD idle time before the device enters the power down state. This item is independent from the power states previously described in this section (Standby and Suspend).

3-19

AWARD BIOS

Power Management à Suspend Mode Option

Suspend Mode Option

Power On Suspend Suspend to Hard Drive

You can select suspend mode by this item. Power On Suspend is the traditional Green PC suspend

mode, the CPU clock is stop, all other devices are shut off. But power must be kept On to detect activities from modem, keyboard/mouse and returns the system to full power. The system activities is detected by monitoring the IRQ signals. Suspend to Hard Drive saves system status, memory and screen image into hard disk, then the power can be totally Off. Next time, when power is turned On, the system goes back to your original work within just few seconds. You need AOZVHDD to reserve disk space. Refer to section 3.16 "Suspend to Hard Drive" for more information".

Power Management à Throttle Duty Cycle

Throttle Duty Cycle

12.5 %

25.0 %

37.5 %

50.0 %

62.5 %

75.0 %

87.5 %

Clock Throttling means at the Doze/Standby state, the CPU clock count in a given time (not the frequency) is reduced to the ratio specified in this parameter. Actually, the period per CPU clock is not changed. For example, a 66MHz CPU clock remains the same 30ns clock period when system goes into Doze/Suspend. The chipset generates the STPCLK (stop clock) signal periodically to prevent CPU for accepting clock from clock generator. For full power on, the CPU can receive 66M count in one second. If the Slow Clock Ratio is set to 50%, the CPU will only receive 33M clock count in one second. This will effectively reduce CPU speed as well as CPU power.

Power Management

VGA Activity Monitor

Enabled Disabled

3-20

VGA Activity Monitor

To enable or disable the detection of VGA activity for power down state transition.

Power Management à IRQ 8 Clock Event

AWARD BIOS

IRQ 8 Clock Event

Enabled Disabled

Power Management

IRQ [3-7,9-15], NMI

Enabled Disabled

Power Management Power Management Power Management

To enable or disable the detection of IRQ8 (RTC) event for power down state transition. OS2 has periodically IRQ8 (RTC) interruptions, If IRQ8 is not set to Disabled, OS/2 may fail to go into Doze/Standby/Suspend mode.

IRQ [3-7,9-15], NMI

To enable or disable the detection of IRQ3-7, IRQ915 or NMI interrupt events for power down state transition.

Primary IDE 0

Primary IDE 1

Secondary IDE 0

Power Management à Secondary IDE 1

Power Management

Floppy Disk Power Management à Serial Port Power Management

Primary IDE 0

Enabled Disabled

Parallel Port

These items enable or disable the detection of IDE, floppy, serial and parallel port activities for power down state transition. Actually it detects the read/write to/from I/O or address port.

3-21

AWARD BIOS

3.6 PNP/PCI Configuration Setup

The PNP/PCI Configuration Setup allows you to configure the ISA and PCI devices installed in your system. The following screen appears if you select the option "PNP/PCI Configuration Setup" from the main menu.

PNP/PCI Configuration à PnP OS Installed

PnP OS Installed

Yes No

3-22

Normally, the PnP resources are allocated by BIOS during POST (Power-On Self Test). If you are using a PnP operating system (such as Windows 95), set this item to Yes to inform BIOS to configure only the

resources needed for booting (VGA/IDE or SCSI). The rest of system resources will be allocated by PnP operating system.

AWARD BIOS

PNP/PCI Configuration à Resources Controlled By

Resources Controlled by

Auto Manual

PNP/PCI Configuration

Reset Configuration Data

Enabled Disabled

PNP/PCI Configuration PNP/PCI Configuration

Setting this option to Manual allows you to individually assign the IRQs and DMAs to the ISA and PCI devices. Set this to Auto to enable the autoconfiguration function.

Reset Configuration Data

In case conflict occurs after you assign the IRQs or after you configure your system, you can enable this function, allow your system to automatically reset your configuration and reassign the IRQs.

IRQ3 (COM2)

IRQ4 (COM1)

PNP/PCI Configuration à IRQ5 (Network/Sound or Others) PNP/PCI Configuration

IRQ7 (Printer or Others)

PNP/PCI Configuration à IRQ9 (Video or Others) PNP/PCI Configuration

IRQ10 (SCSI or Others)

PNP/PCI Configuration à IRQ11 (SCSI or Others)

PNP/PCI Configuration

IRQ12 (PS/2 Mouse)

PNP/PCI Configuration à IRQ14 (IDE1) PNP/PCI Configuration à IRQ15 (IDE2)

IRQ 3

Legacy ISA PCI/ISA PnP

If your ISA card is not PnP compatible and requires a special IRQ to support its function, set the selected IRQ to Legacy ISA. This setting informs the PnP BIOS to reserve the selected IRQ for the installed legacy ISA card. The default is PCI/ISA PnP. Take note that PCI cards are always PnP compatible (except old PCI IDE card).

3-23

AWARD BIOS

PNP/PCI Configuration à DMA 0 PNP/PCI Configuration à DMA 1 PNP/PCI Configuration PNP/PCI Configuration à DMA 5 PNP/PCI Configuration PNP/PCI Configuration à DMA 7

DMA 3

DMA 6

DMA 0

Legacy ISA PCI/ISA PnP

If your ISA card is not PnP compatible and requires a special DMA channel to support its function, set the selected DMA channel to Legacy ISA. This setting informs the PnP BIOS to reserve the selected DMA channel for the installed legacy ISA card. The default is PCI/ISA PnP. Take note that PCI card does not require DMA channel.

PNP/PCI Configuration à PCI IDE IRQ Map To

PCI IDE IRQ Map To

ISA PCI-Slot1 PCI-Slot2 PCI-Slot3 PCI-Slot4 PCI-Auto

PNP/PCI Configuration PNP/PCI Configuration

Primary IDE INT#

A B C D

Some old PCI IDE add-on cards are not fully PnP compatible. These cards require you to specify the slot in use to enable BIOS to properly configure the PnP resources. This function allows you to select the PCI slot for any PCI IDE add-on card present in your system. Set this item to Auto to allow BIOS to

automatically configure the installed PCI IDE card(s).

Primary IDE INT#

Secondary IDE INT#

These two items, in conjunction with item "PCI IDE IRQ Map To", specify the IRQ routing of the primary or secondary channel of the PCI IDE add-on card (not the onboard IDE). Each PCI slot has four PCI interrupts aligned as listed in the table below. You must specify the slot in the "PCI IDE IRQ Map To", and set the PCI interrupt (INTx) here according to the interrupt connection on the card.

PCI Slot Location 1

(pin A6)

3-24

Location 2 (pin B7)

Location 3 (pin A7)

Location 4 (pin B8)

AWARD BIOS

Slot 1 INTA INTB INTC INTD Slot 2 INTB INTC INTD INTA Slot 3 INTC INTD INTA INTB Slot 4 INTD INTA INTB INTC Slot 5 (if any) INTD INTA INTB INTC

PNP/PCI Configuration

Used MEM base addr

N/A C800 CC00 D000 D400 D800 DC00

Used MEM Base Addr

This item, in conjunction with the "Used MEM Length", lets you set a memory space for non-PnP compatible ISA card. This item specifies the memory base (start address) of the reserved memory space. The memory size is specified in the "Used MEM Length".

PNP/PCI Configuration à Used MEM Length

Used MEM Length

8K 16K 32K 64K

If your ISA card is not PnP compatible and requires special memory space to support its function, specify the memory size in this parameter to inform the PnP BIOS to reserve the specified memory space for installed legacy ISA card.

3-25

AWARD BIOS

3.7 Load Setup Defaults

The "Load Setup Defaults" option loads optimized settings for optimum system performance. Optimal settings are relatively safer than the Turbo settings. We recommend you to use the Optimal settings if your system has large memory size and fully loaded with add-on card (for example, a file server using double-sided 8MB SIMM x4 and SCSI plus Network card occupying the PCI and ISA slots).

Optimal is not the slowest setting for this mainboard. If you need to verify a unstable problem, you may manually set the parameter in the "BIOS Features Setup" and "Chipset Features Setup" to get slowest and safer setting.

3.8 Load Turbo Defaults

The "Load Turbo Defaults" option gives better performance than Optimal values. However, Turbo values may not be the best setting of this mainboard but these values are qualified by the AOpen RD and QA department as the reliable settings especially if you have limited loading of add-on card and memory size (for example, a system that contains only a VGA/Sound card and two SIMMs).

To attain the best system performance, you may manually set the parameters in the "Chipset Features Setup" to get proprietary setting. Make sure that you know and understand the functions of every item in Chipset Setup menu. The performance difference of Turbo from Optimal is normally around 3% to 10%, depending on the chipset and the application.

3-26

AWARD BIOS

3.9 Integrated Peripherals

The following screen appears if you select the option "Integrated Peripherals" from the main menu. This option allows you to configure the I/O features.

Integrated Peripherals à IDE HDD Block Mode

IDE HDD Block Mode

Enabled Disabled

This feature enhances disk performance by allowing multisector data transfers and eliminates the interrupt handling time for each sector. Most IDE drives, except with old designs, can support this feature.

3-27

AWARD BIOS

Integrated Peripherals à IDE Primary Master PIO Integrated Peripherals à IDE Primary Slave PIO Integrated Peripherals Integrated Peripherals à IDE Secondary Slave PIO

IDE Secondary Master PIO

IDE Primary Master PIO

Auto Mode 1 Mode 2 Mode 3 Mode 4

Integrated Peripherals

Setting this item to Auto activates the HDD speed auto-detect function. The PIO mode specifies the data transfer rate of HDD. For example: mode 0 data transfer rate is 3.3MB/s, mode 1 is 5.2MB/s, mode 2 is 8.3MB/s, mode 3 is 11.1MB/s and mode 4 is 16.6MB/s. If your hard disk performance becomes unstable, you may manually try the slower mode.

Caution: It is recommended that you connect the first IDE device of each channel to the endmost connector of the IDE cable. Refer to section 2.3 "Connectors" for details on how to connect IDE device(s).

IDE Primary Master UDMA Integrated Peripherals à IDE Primary Slave UDMA Integrated Peripherals

IDE Secondary Master UDMA Integrated Peripherals à IDE Secondary Slave UDMA

IDE Primary Master UDMA

Auto Disabled

This item allows you to set the Ultra DMA/33 mode supported by the hard disk drive connected to your primary IDE connector.

Integrated Peripherals à On-Chip Primary PCI IDE

Integrated Peripherals

On-Chip Secondary PCI IDE

On-Chip Primary PCI IDE

Enabled Disabled

3-28

This parameter lets you enable or disable the IDE device connected to the primary IDE connector.

Integrated Peripherals à USB Legacy Support

AWARD BIOS

USB Legacy Support

Enabled Disabled

Caution: You can not use both USB driver and USB legacy keyboard at the same time. Disable "USB Legacy Support" if you have USB driver in the operating system.

Integrated Peripherals

USB IRQ Released

Yes No

Note: Normally, PCI VGA does not need PCI interrupt, you may put PCI VGA on slot4.

Integrated Peripherals

Onboard FDC Controller

Enabled Disabled

This item lets you enable or disable the USB keyboard driver within the onboard BIOS. The keyboard driver simulates legacy keyboard command and let you use USB keyboard during POST or after boot if you don't have USB driver in the operating system.

USB IRQ Released

USB device is default to use PCI INTD#, the same as PCI slot4. If you installed PCI card on slot4 and require to use INTD#, set this item to Yes. The USB device will then be disabled.

Onboard FDC Controller

Setting this parameter to Enabled allows you to connect your floppy disk drives to the onboard floppy disk connector instead of a separate controller card. Change the setting to Disabled if you want to use a separate controller card.

3-29

AWARD BIOS

Integrated Peripherals à Onboard Serial Port 1 Integrated Peripherals à Onboard Serial Port 2

Onboard Serial Port 1

Auto 3F8/IRQ4 2F8/IRQ3 3E8/IRQ4 2E8/IRQ3 Disabled

Integrated Peripherals

Onboard UART 2 Mode

Standard HPSIR ASKIR

This item allow you to assign address and interrupt for the board serial port. Default is Auto.

Note: If you are using an network card, make sure that the interrupt does not conflict.

Onboard UART 2 Mode

This item is configurable only if the "Onboard UART 2" is enabled. This allows you to specify

the mode of serial port2. The available mode selections are:

• Standard - Sets serial port 2 to operate in normal mode. This is the

default setting.

• HPSIR - Select this setting if you installed an Infrared module in your

system via IrDA connector (refer to section 2.3 "Connectors"). This setting allows infrared serial communication at a maximum baud rate of 115K baud.

• ASKIR - Select this setting if you installed an Infrared module via IrDA

connector (refer to section 2.3 "Connectors"). This setting allows infrared serial communication at a maximum baud rate of 19.2K baud.

3-30

Integrated Peripherals à Onboard Parallel Port

AWARD BIOS

Onboard Parallel Port

3BC/IRQ7 378/IRQ7 278/IRQ5 Disabled

Integrated Peripherals

Parallel Port Mode

SPP EPP ECP ECP + EPP

This item controls the onboard parallel port address and interrupt.

Note: If you are using an I/O card with a parallel port, make sure that the addresses and IRQ do not conflict.

Parallel Port Mode

This item lets you set the parallel port mode. The mode options are SPP (Standard Parallel Port), EPP (Enhanced Parallel Port) and ECP (Extended Parallel Port). SPP is the IBM AT and PS/2 compatible mode. EPP enhances the parallel port throughput by directly writing/reading data to/from parallel port without latch. ECP supports DMA and RLE (Run Length Encoded) compression and decompression.

Integrated Peripherals à ECP Mode Use DMA

ECP Mode Use DMA

3 1

This item lets you set the DMA channel of ECP mode.

Integrated Peripherals à CPU Thermal (Temp.)

CPU Thermal (Temp.)

Ignore Monitor

This function lets you control the Thermal Detection function. When you set this option to Monitor and the temperature of CPU exceeds predefined value, then:

1. The PC speaker will beep 5 times.

2. The CPU cycle timer will descend about 35%.

Note:The CPU cycle timer won't be restored to the original status until you reset the system.

3-31

AWARD BIOS

3.10 Password Setting

Password prevents unauthorized use of your computer. If you set a password, the system prompts for the correct password before boot or access to Setup.

To set a password:

1. At the prompt, type your password. Your password can be up to 8

alphanumeric characters. When you type the characters, they appear as asterisks on the password screen box.

2. After typing the password, press <Enter> key.

3. At the next prompt, re-type your password and press again to confirm

the new password. After the password entry, the screen automatically reverts to the main screen.

To disable the password, press when prompted to enter the password. The screen displays a message confirming that the password has been disabled.

3.11 IDE HDD Auto Detection

If your system has an IDE hard drive, you can use this function to detect its parameters and enter them into the "Standard CMOS Setup" automatically.

This routine only detects one set of parameters for your IDE hard drive. Some IDE drives can use more than one set of parameters. If your hard disk is formatted using different parameters than those detected, you have to enter the parameters manually. If the parameters listed do not match the ones used to format the disk, the information on that disk will not be accessible. If the auto-detected parameters displayed do not match those that used for your drive, ignore them. Type N to reject the values and enter the correct ones

manually from the Standard CMOS Setup screen.

3.12 Save & Exit Setup

This function automatically saves all CMOS values before leaving Setup.

3-32

AWARD BIOS

3.13 Exit without Saving

Use this function to exit Setup without saving the CMOS value changes. Do not use this option if you want to save the new configuration.

3.14 NCR SCSI BIOS and Drivers

The NCR 53C810 SCSI BIOS resides in the same flash memory chip as the system BIOS. The onboard NCR SCSI BIOS is used to support NCR 53C810 SCSI control card without BIOS code.

The NCR SCSI BIOS directly supports DOS, Windows 3.1 and OS/2. For better system performance, you may use the drivers that come with the NCR SCSI card or with your operating system. For details, refer to the installation manual of your NCR 53C810 SCSI card.

3-33

AWARD BIOS

3.15 BIOS Flash Utility

The BIOS Flash utility allows you upgrade the system BIOS. To get the AOpen Flash utility and the upgrade BIOS file, contact your local distributor or visit our homepage at http://www.aopen.com.tw. Please make sure that you have the correct BIOS ready, the BIOS filename is normally like AP5TC110.BIN, which means model AP5TC BIOS revision 1.10.

There are two useful programs, Checksum utility CHECKSUM.EXE and AOpen Flash utility AOFLASH.EXE. Follow the procedures below to upgrade your BIOS.

[CHECKSUM.EXE] This utility will help you to determine if the BIOS has been downloaded

correctly or not.

1. Execute C:> CHECKSUM Biosfile.bin

(Where Biosfile.bin indicates the file name of the BIOS code.)

2. The utility will show "Checksum is ssss".

3. Compare the "ssss" with original checksum posted on Web or BBS. If they

are different, please do not proceed any further and try to download the BIOS again.

[AOFLASH.EXE] This utility will try to check the mainboard model, BIOS version and Super/Ultra

IO chip model. To ensure the correct BIOS file for the correct mainboard and IO chip. This utility will permanently replace your original BIOS content after flashing.

1. Bootup the system from DOS prompt without loading any memory manager

(HIMEM, EMM386, QEMM386, ...).

2. Execute C:> AOFLASH Biosfile.bin

(Where Biosfile.bin indicates the file name of the BIOS code.)

3. After loading the new BIOS code, the utility will prompt you to save original

BIOS code into your HDD or floppy. Please press "Y" to store it as "BIOS.OLD".

4. After the old BIOS has been successfully saved, press "Y" to replace BIOS.

3-34

AWARD BIOS

5. DO NOT turn off the power during "FLASHING".

6. Reboot the system by turn off the power after "FLASHING".

7. Press "DEL" key to enter BIOS setup during POST.

8. Reload the "BIOS SETUP DEFAULT" and reconfigure other items as

previous set.

9. Save & Exit. Done!

Warning: DO NOT turn off the power during "FLASHING". If the BIOS programming is not successfully finished, the system will not be boot again, and you may need to physically replace the BIOS chip.

Tip: You may load back original BIOS "BIOS.OLD" by the same procedure.

3-35

Appendix A

BIOS revision

AP5T revision 3.4

Rev 3.4

Frequently Asked Question

Note: FAQ may be updated without notice. If you cannot find the information that you need in this appendix, visit our WWW home page, (address: http://www.aopen.com.tw) and check the FAQ area and other new information.

Q: How can I identify the mainboard BIOS version?

A: The AOpen mainboard BIOS version appears on the upper-left corner of

the POST (Power-On Self Test) screen. Normally, it starts with R and is found in between the model name and the date. For example:

AP53/AX53 R3.80 Oct.22.1996

Q: How can I identify version of the mainboard?

A: The AOpen mainboard revision appears as Rev x.x on the PCB, near the

PCI slot. For example, for AP5T revision 3.4, the revision number appears on the PCB as follows:

AP5T MB

A-1

Frequently Asked Questions

Q: Why the AOpen mainboards (MB) do not have cache module

expansion slot?

A: Faster CPU speed requires more difficult and complex MB timing design.

Every trace and components delay must be taken into consideration. The expansion cache slot design will cause 2 or 3ns delay in PBSRAM timing, and the extended trace length to the cache module through the golden finger will further delay the timing by 1 or 2ns. This may result in unreliable system once the cache module and slot becomes worn. All AOpen MBs support 512KB PBSRAM onboard. For better performance (around 3% higher than 256KB), we strongly recommend you to use 512KB onboard. Otherwise, reliable 256KB is better than unreliable 512KB with cache module. AOpen is the first company to promote this concept since the fourth quarter of 1995.

Q: What is FCC DoC (Declaration of Conformity)?

A: The DoC is new certification standard of FCC regulations. This new

standard allows DIY component (such as mainboard) to apply DoC label separately without a shielding of housing. The rule to test mainboard for DoC is to remove housing and test it with regulation 47 CFR 15.31. The DoC test of mainboard is more difficult than traditional FCC test. If the mainboard passes DoC test, that means it has very low EMI radiation and you can use any kind of housing (even paper housing). Following is an example of DoC label.

AP5T

Test To Comply With FCC Standards

FOR HOME OR OFFICE USE

Q: Can SDRAM DIMM work together with FPM/EDO SIMM?

A: The FPM/EDO operate at 5V while SDRAM operates at 3.3V. The current

MB design provides different power to DIMM and SIMM but connects the data bus together. If you combine SIMM and DIMM, the system will still work fine; however, only temporarily. After a few months, the SDRAM 3.3V data input will be damaged by 5V FPM/EDO data output line. Therefore, we strongly NOT recommend DIMM and SIMM combined together. There is one exception, if your SDRAM supports 5V tolerance (such as TI or Samsung), which accepts 5V signal at 3.3V operating power, you can combine them.

A-2

Frequently Asked Question

Manufacturer Model Suggested CAS

Latency Time

Samsung KM416511220AT-

G12 NEC D4S16162G5-A12-7JF 2 No Hitachi HM5216805TT10 2 No Fujitsu 81117822A-100FN 2 No TI TMX626812DGE-12 2 Yes TI TMS626812DGE-15 3 Yes TI TMS626162DGE-15 3 Yes TI TMS626162DGE-M67 3 Yes

Q: What is Bus Master IDE (DMA mode)?

A: The traditional PIO (Programmable I/O) IDE requires the CPU to involve in

all the activities of the IDE access including waiting for the mechanical events. To reduce the workload of the CPU, the bus master IDE device transfers data from/to memory without interrupting CPU, and releases CPU to operate concurrently while data is transferring between memory and IDE device. You need the bus master IDE driver and the bus master IDE HDD to support bus master IDE mode. Note that it is different with master/slave mode of the IDE device connection. For more details, refer to section 2.3 "Connectors".

2 Yes

5V Tolerance

Q: What is 3.3V Over-current Protection?

A: The Over-current Protection was very popular implemented on the Baby AT

or ATX +5V/+12V switching power supply. It is very useful to prevent accident short circuit when you install the mainboard, HDD, add-on cards into housing. But unfortunately, the new generation CPU and chipset use

3.3V or 2.8V voltage which has regulator to transfer 5V to 3.3V/2.8V, and makes 5V over-current protection useless. AOpen TX mainboard AP5T/AX5T with switching regulator onboard support 3.3V (Vcpuio, chipset, PBSRAM, SDRAM) and 2.8V (CPU Vcore) over-current protection, in conjunction with 5V/12V power supply provide the full line over-current protection.

Q: What is CPU Thermal Protection?

A: The higher speed of CPU , the more heat dissipation need to be taking into

consideration. If user does not use correct fan for the CPU cooling, it is highly possible the CPU can over heat and causing system unstable. AOpen AP5T/AX5T/AX6F has special thermal detection circuit under the

A-3

Frequently Asked Questions

CPU, and slow down the CPU speed as well as warning when temperature is high then a predefined temperature. (Normally, 55 degree C.)

Q: What is the Ultra DMA/33?

A: This is the new specification to improve IDE HDD data transfer rate. Unlike

traditional PIO mode, which only uses the rising edge of IDE command signal to transfer data, the DMA/33 uses both rising edge and falling edge. Hence, the data transfer rate is double of the PIO mode 4 or DMA mode 2. (16.6MB/s x2 = 33MB/s).

The following table lists the transfer rate of IDE PIO and DMA modes. The IDE bus is 16-bit, which means every transfer is two bytes.

Mode Clock per

33MHz PCI

PIO mode 0 30ns 20 600ns (1/600ns) x 2byte = 3.3MB/s PIO mode 1 30ns 13 383ns (1/383ns) x 2byte = 5.2MB/s PIO mode 2 30ns 8 240ns (1/240ns) x 2byte = 8.3MB/s PIO mode 3 30ns 6 180ns (1/180ns) x 2byte = 11.1MB/s PIO mode 4 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s DMA mode 0 30ns 16 480ns (1/480ns) x 2byte = 4.16MB/s DMA mode 1 30ns 5 150ns (1/150ns) x 2byte = 13.3MB/s DMA mode 2 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s DMA/33 30ns 4 120ns (1/120ns) x 2byte x2 = 33MB/s

Clock count

Cycle time

Data Transfer rate

A-4

Frequently Asked Question

Q: What is the performance of Ultra DMA/33? Do we need special driver?

A: You need driver to activate DMA/33, there are now driver from INTEL or

you can use driver in the Windows 95 Memphis, which can recognize South Bridge PIIX4.

We got the mass production sample Quantum Fireball ST1.6A, following are the test result.

MB : AOpen AP5T CPU : P54C-200 Mhz DRAM : 16MB * 2 (FP-7) VGA : AOpen PV60 CDROM : AOpen CD-920E (20X) OS : Win95 OSR2

Model OS/Driver Mode Winbench97

Disk Winmark (Business)

Quantum Fireball

1.2G Quantum

Fireball

1.2G Quantum

ST1.6A Quantum

ST1.6A

Windows 95 OSR2

Windows 95 OSR2 + INTEL PIIX4 driver

Windows 95 OSR2

Windows 95 OSR2 + INTEL PIIX4 driver

PIO mode 4 717 2150

DMA mode 2 822 3050

PIO mode 4 853 2630

DMA/33 1040 4020

Winbench97 Disk Winmark

(High End)

A-5

Frequently Asked Questions

Q: What is the memory performance improvement of TX chipset?

A: Following is the compare table of TX+SDRAM, VX+SDRAM, TX+EDO,

HX+EDO and VX+EDO. CPU : Pentium PP/MT (P55C) 200MHz DRAM :16MB EDO or SDRAM

HDD : Quantum Fireball 1280AT

VGA : AOpen PV60 S3 Trio64V+ 800x600x256 Small font OS : Windows 95 OSR2

Chipset Model DRAM Timing Winstone9

Intel 430VX AP5VM EDO 6-2-2-2 86.1 Intel 430HX AP53/AP5K EDO 5-2-2-2 86.8 Intel 430TX AP5T/AX5T EDO 5-2-2-2 87.3 Intel 430VX AP5VM/AP5V SDRAM 6-1-1-1 86.6 Intel 430TX AP5T/AX5T SDRAM 5-1-1-1 87.7

Q: Power Management Icon does not appear in the Windows 95 Control

Panel even though the APM under BIOS Setup is enabled.

A: This problem occurs if you did not enable the APM function before you

install Windows 95. If you have already installed Windows 95, re-install it after the BIOS APM function is enabled.

A-6

Frequently Asked Question

Q: Why does the system fail to go into suspend mode under Win95?

A: This problem may be caused by your CDROM settings. The CDROM Auto

Insert Notification of Win95 is dafault enabled, the system will continue to monitor your CDROM, auto-execute application when a CD diskette is loaded, and prevents the system from entering into suspend mode. To resolve this, go into Control Panel è System è Device Manager è CDROM è Setting, and disable the "Auto Insert Notification" function.

Q: How can I eliminate the "?" marks presented under Device Manager after installing Win'95 on TX or LX based system?

A: Although your system will still work fine with this "?" exist. We received

many requests about how to eliminate it. AOpen software team spends few weeks to develop an utility AOchip.exe for convenience of Win95 users. It is very user friendly and can be used on any TX or LX motherboard, not limited to Aopen's products. You are welcome to distribute it, if you like it, simply say thanks to our software team. Note that you need USB driver for USB devices to work properly, which is expected to be implemented on Windows'98.

Q: Why are there question marks or "standard IDE controller" presented under Device Manager after installing Win'95 on TX or LX based system?

A: Intel has introduced 430TX or 440LX chipset with latest feature of "ACPI",

"USB" & "Ultra DMA/33". Since these devices are so new that Win'95 did not anticipate to support them on Aug. of '95 which Win'95 initially is being released. To eliminate, you may run AOchip.exe developed by AOpen software team. Drivers for above new features are expected to be implemented in Windows'98.

A-7

Frequently Asked Questions

Q: How to install Windows 95 USB driver?

A: If you are Win'95 OSR 2.0 user (.950B, shows "PCI Universal Serial

Devices"), you may obtain USBSUPP.EXE from Microsoft or your OEM system provider for installing Microsoft USB supplement which will create "USB Supplement to OSR2" in the list of Add/Remove program tool under Control Panel. After above installation, please run AOchip.exe provided by AOpen to create USB Controller under Device Manager.

If you are Win'95 OSR 2.1 user, only AOchip.exe installation is necessary. If you are Win'95 retail user (.950 or .950A), there is no direct upgrade path

available from Microsoft at this moment. It is expected to be implemented under Windows'98.

Q: Which version of the Windows '95 that I am using?

A: You may determine the version of Windows '95 by following steps.

1. Double click "System" in "Control Panel".

2. Click "General".

3. Look for "System" heading & refer to following,

4.00.950 Windows 95

4.00.950A Windows 95 + Service Pack or OEM Service Release 1

4.00.950B OEM Service Release 2 or OEM Service Release 2.1 If you are running OSR 2.1, you may tell it from by checking "USB

Supplement to OSR2" in the list of installed program of Add/Remove program tool under Control Panel, and checking for version 4.03.1212 of the Ntkern.vxd file in the Windows\System\Vmm32 folder.

Q: What is LDCM (LAN Desktop Client Manager)?

A: This is a software of Intel. The major goal is to provide an easy way for

corporate network administrator to monitor the status of all the clients (workstation). You need at least DMI BIOS for LDCM. AOpen BIOS is also DMI ready but unfortunately, Intel LDCM needs Intel network card to work properly. It is obviously not suitable for home user to pay LDCM extra cost.

A-8

Frequently Asked Question

Q: What is ADM (Advanced Desktop Manager)?

A: This is a desktop client and server management software developed by

AOpen. It is similar as Intel LDCM with some improvement. ADM is not only for corporate network management, it can also be used as system status monitoring utility, for example, CPU fan, thermal and system voltage monitoring.

Features ADM 2.0 LDCM 3.0 VGA card Network card Support DMI BIOS 2.0 Support Win95 Support Win NT

Real-Time CPU/Memory Utilization Monitoring

Multi-Machine Monitoring on One Screen

Remote Management Protocol

Standard SNMP Trap

Remote File Transfer

No limitation Only ATI No limitation Only Intel Yes Yes Yes Yes No (will be supported

on ADM 2.1) Yes No

Yes No

Standard SNMP protocol

Yes (so that can work with standard software such as HP Open View)

No Yes

Yes

Intel proprietary RAP protocol

A-9

Appendix B

Troubleshooting

In case you encounter any of the troubles listed below, follow the procedures accordingly to resolve the problem. If the first corrective action listed did not work, then try the next one.

Important: Make sure that you have tried listed procedures in this appendix before you call your distributor.

Tip: There are many useful information in our homepage, such as jumper settings, latest BIOS, drivers, and more FAQs. Visit our homepage to see if there is answer of your problem.

Taiwan http://www.aopen.com.tw USA http://www.aopen-usa.com http://www.aopenamerica.com Europe http://www.aopen.nl

No display

2. Check the power cord or power switch of your system. The simple way to identify power failure is to check the CPU fan and the power supply fan. If these are not working, then the power is down.

3. Turn off the power and remove all add-on cards, connectors and SIMMs from your mainboard. Then reinstall the VGA card and two SIMMs. Turn on the power again. If you can see the POST (power-on-self-test) screen,

B-1

Troubleshooting

the problem is your add-on cards or peripheral. try to reinstall the add-on cards one by one to find out which card is causing the problem.

4. Check the monitor and VGA cable. Press the <Num Lock> key to enable/disable the Num Lock function. If the Num Lock LED works properly, this indicates that your CPU, SIMM and BIOS bootup sequence are properly functioning. The problem may be caused by your VGA or monitor.

Unstable system or HDD, HDD with bad sector. System sometimes hangs or auto reboots.

1. Check all jumper settings according to section 2.2 "Jumpers". Make sure that you have set the proper jumpers especially those for CPU frequency, core and IO voltage select functions. Ask your CPU dealer for correct CPU specification. The remarked CPU is very popular in the market, we recommend that you use a Box CPU, i.e., CPU sold in package with warranty card inside.

2. Check if your SIMM has less than 24 chips. Refer to section 2.4 "Configuring the System Memory" for details.

3. Set DRAM timing to 70ns and disable all enhanced chipset features in BIOS. The default BIOS timing is 60ns for better performance. If you are using an old SIMM or a remarked SIMM, you may need to manually slow down the DRAM timing and disable the chipset features. Refer to chapter 3 "Chipset Features Setup" for details.

4. Disable the power management and USB functions. Some add-on cards, drivers or applications may not be compatible with these functions.

5. Disable the external cache (2nd level cache) in chapter 3 "Advanced CMOS Setup" (AMI) or "BIOS Features Setup" (AWARD). If the system works fine, your cache module or onboard PBSRAM may be malfunction.

6. Enter BIOS and set the HDD "Block" and "32-bit" mode parameters to OFF. Refer to Chapter 3 "Standard CMOS Setup" (AMI) or "Integrated Peripherals" (AWARD) for details. Also, if possible set HDD PIO mode 2 or 3 to a slower transfer speed.

7. Turn off the power and remove all add-on cards, connectors and SIMMs from your mainboard. Then reinstall the VGA card, two SIMMs and connect only one hard disk to the end-most connector of the IDE cable. The IDE cable length must not exceed 46cm (18inches), refer to section 2.3 "Connectors". If the system functions properly, reinstall the add-on cards one by one. This will help you find out which card or device is causing the problem. Be sure to connect the 2nd IDE device (HDD/CD-ROM) to the primary channel slave mode.

B-2

Troubleshooting

8. If your CPU bus frequency is 66MHz, set the CPU external/bus frequency to 60MHz, but leave the CPU core/bus frequency ratio unchanged. Normally, CPU with 66MHz bus frequency works properly at slower speed, e.g., 60MHz. This will help you identify if the CPU is remarked or if the mainboard or add-on card is unstable at 66MHz.

Keyboard, Mouse, Printer or Floppy is not working properly.

1. Check the cable and bracket. Make sure that pin 1 of the cable is connected to pin1 of the connector. Pin 1 of the flat cable is indicated by a red-colored wire. Refer to section 2.3 "Connectors".

2. If possible, use another system to test the peripherals and cables. Check if these are working properly.

3. If possible, use another peripheral to double check if the mainboard or the cable is defective.

CMOS data lost, forget password.

1. Refer to section 2.2 "Jumpers". Locate the CMOS jumper and follow the procedures on how to clear the CMOS. Load the BIOS optimal settings (AMI) or load BIOS default settings (Award).

2. If your mainboard comes with a battery, simply change it. If your mainboard comes with Dallas DS12887A compatible RTC, the occurrence of low battery problem is very rare since RTC battery is expected to last for 7 years. In this case, you have to send the mainboard back to your distributor.

Incompatible add-on card, peripheral, operating system, and application.

1. Check all jumper settings according to section 2.2 "Jumpers".

2. Check if you have a Legacy ISA card (non PnP). If yes, set the IRQ and DMA for this card to Legacy/ISA. Refer to Chapter 3 "PCI/PnP Setup" section. If you are using a PnP operating system such as Win95, enable the "Plug-and-Play Aware O/S" parameter in BIOS and let the OS configure the system.

3. Disable all enhanced chipset features. Refer to Chapter 3 "Chipset Features Setup" for details.

4. Disable the power management and USB functions. Some add-on cards, drivers or applications are not compatible with these functions.

B-3

Troubleshooting

5. Disable the external cache (2nd level cache) and system BIOS cacheable or VGA BIOS cacheable parameters in BIOS. Refer to Chapter 3 "Advanced CMOS Setup" section. Some applications has trouble at higher system speed.

6. Visit our WWW home page, (address http://www.aopen.com.tw), check the FAQ area (frequently asked question) and download the latest BIOS, try again with the latest BIOS.

Important: If problem still exist after you have done all the corrective actions listed in this appendix, fill out the attached problem report form. Write down your configuration and error symptoms as detailed as possible. The more detailed information you give us, the faster we can identify and solve your problem. You can copy this form and fax it to your distributor or send the form via e-mail. Refer to Appendix B “Frequently Asked Question” for information on how to identify the BIOS and the mainboard versions.

B-4

FROM:

Error Symptom:

Troubleshooting

Technical Problem Report Form

Name:

TEL: FAX:

Email address:

Error Type:

(Please mark in the box and list the model and version below.)

System Configuration:

(Please list model name and version.)

q PS/2 mouse q Printer q Floppy q IDE HDD q Keyboard q Sound/Modem q SCSI CDROM q Ethernet q USB q Win95 q Window NT q UNIX

MB: _____________

CPU: ____________

HDD: ____________

VGA: ____________

Others:

q COM1/COM2, serial mouse. q Parallel Tape q Floppy Tape q IDE CDROM q VGA q SCSI HDD q SCSI Tape q Tokenring q DOS q Windows 3.1 q OS/2 q Others: ______________

BIOS: _____________

SIMM: ____________

CDROM: __________

OS: _______________

B-5

Appendix C

Jumper Table Summary

Setting the CPU Voltage

ON OFF OFF ON OFF OFF OFF

ON ON OFF OFF OFF ON ON

ON ON ON OFF OFF OFF

OFF

ON ON ON ON ON OFF

OFF OFF OFF OFF OFF OFF ON

CPU Core Voltage

3.52V (Cyrix 6x86 or AMD K5)

3.45V (Intel P54C or IDT C6)

3.2V (AMD K6-233)

2.9V (K6-166/200 or M2)

2.8V (Intel P55C)

2.2V (AMD K6-266/300)

1.8V (For future use)

JP12

1-2 3-4

CPU Type S4 S5 S6 S7 S8 Vcore

I/O Voltage (Vio)

3.45V (default)

3.52V

Warning: Please make sure that you have installed CPU fan properly if Intel PP/MT-233 or AMD K6-200/233 is being selected to use. It may cause your system unstable if you can not meet the heat dissipation requirement from above CPU type. It is recommended to adopt larger fan on these CPU for better air flow in the system.

C-1

Jumper Table Summary

Selecting the CPU Frequency

OFF ON ON OFF ON ON OFF

JP5

CPU Frequency

JP4

JP6

Ratio

1-2

2-3 1-2 2-3 1-2

1-2 1-2 2-3 2-3

OFF OFF ON ON OFF ON ON

OFF OFF OFF OFF ON ON ON

1.5x (3.5x) 2x

2.5x (1.75x) 3x 4x

4.5x

2-3 1-2 2-3

Note: Intel PP/MT MMX 233MHz is using 1.5x jumper setting for

3.5x frequency ratio, and AMD PR166 is using 2.5x setting for

1.75x frequency ratio. Warning: INTEL TX chipset supports only 60/66MHz external

CPU bus clock, the 75/83.3MHz settings are for internal test only,

set to 75/83.3MHz exceeds the specification of TX chipset, which may cause serious system damage.

Warning: Cyrix 6x86 P200+ uses 75MHz external clock, the

jumper setting shown on the table below is for user's convenient. It may cause serious system damage to use 75MHz clock.

Warning: Although you may set 75MHz x 2 for Cyrix MX-PR200 and 83.3MHz x 2 for Cyrix MX-PR233, note that 75/83.3MHz settings may probably cause serious system damage.

CPU External Clock

60MHz 66MHz 75MHz

83.3MHz

INTEL Pentium

C-2

CPU Core Frequency

Ratio External

Bus Clock

S1 S2 S3 JP4 & JP5 & JP6

Jumper Table Summary

INTEL Pentium MMX

Cyrix 6x86 & 6x86L

P150+ 120MHz = 2x 60MHz ON OFF OFF 1-2 & 2-3 & 1-2 P166+ 133MHz = 2x 66MHz ON OFF OFF 2-3 & 1-2 & 1-2 P200+ 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 2-3

Cyrix M2 CPU Core

MX-PR166 150MHz = 2.5x 60MHz ON ON OFF 1-2 & 2-3 & 1-2 MX-PR200 166MHz =

MX-PR233 200MHz =

MX-PR266 233MHz = 3.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2

CPU Core Frequency

Frequency

150MHz=

166MHz=3x2x

Ratio External

2.5x 2x

Bus Clock

66MHz 75MHz 66MHz

83.3MHz

S1 S2 S3 JP4 & JP5 & JP6

ONONON

OFFONON

OFF

2-3 & 1-2 & 1-2

OFF

1-2 & 2-3 & 2-3

OFF

2-3 & 1-2 & 1-2

OFF

2-3 & 1-2 & 2-3

AMD K5 CPU Core

Frequency

PR90 90MHz = 1.5x 60MHz OFF OFF OFF 1-2 & 2-3 & 1-2

Ratio External

Bus Clock

S1 S2 S3 JP4 & JP5 & JP6

C-3

Jumper Table Summary

AMD K5 CPU Core

Frequency

PR100 100MHz = 1.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 PR120 90MHz = 1.5x 60MHz OFF OFF OFF 1-2 & 2-3 & 1-2 PR133 100MHz = 1.5x 66MHz OFF OFF OFF 2-3 & 1-2 & 1-2 PR166 116MHz = 1.75x 66MHz ON ON OFF 2-3 & 1-2 & 1-2

AMD K6 CPU Core

Frequency

IDT C6 CPU Core

Frequency

C6-150 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 2-3 C6-180 180MHz = 3x 60MHz OFF ON OFF 1-2 & 2-3 & 1-2 C6-200 200MHz = 3x 66MHz OFF ON OFF 2-3 & 1-2 & 1-2

Ratio External

Bus Clock

Ratio External

Bus Clock

Ratio External

Bus Clock

S1 S2 S3 JP4 & JP5 & JP6

Clear CMOS

JP14

1-2

2-3

Clear CMOS

Normal operation (default) Clear CMOS

C-4

AOpen AP5TC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Copyright

Disclaimer

Organization

Conventions

Contents

1.1 Specifications

1.2 Suspend to Hard Drive

1.3 CPU Thermal Protection

1.4 PCI Sound Card connector

2.1 Jumpers and Connector Locations

2.2 Jumpers

2.2.1 Setting the CPU Voltage

2.2.2 Selecting the CPU Frequency

2.2.3 Clearing the CMOS

2.3 Connectors

2.3.1 Power Cable

2.3.2 CPU Fan

2.3.3 PS/2 Mouse

2.3.4 Serial Devices (COM1/COM2)

2.3.5 USB Device (optional)

2.3.6 Floppy Drive

2.3.7 Printer

2.3.8 IDE Hard Disk and CD ROM

2.3.9 Hard Disk LED

2.3.10 Panel Connector

2.3.11 Keyboard

2.3.12 IrDA Connector

2.3.13 SB-LINK

2.4 Installing the System Memory

3.1 Entering the Award BIOS Setup Menu

3.2 Standard CMOS Setup

3.3 BIOS Features Setup

3.4 Chipset Features Setup

3.5 Power Management Setup

3.6 PNP/PCI Configuration Setup

3.7 Load Setup Defaults

3.8 Load Turbo Defaults

3.9 Integrated Peripherals

3.10 Password Setting

3.11 IDE HDD Auto Detection

3.12 Save & Exit Setup

3.13 Exit without Saving

3.14 NCR SCSI BIOS and Drivers

3.15 BIOS Flash Utility