MAINBOARD MANUAL

DOC No.: M00402 Rev. Date : A2 : 7, 2000

Part No. : 25-11523-22

Notice

Handling Precautions

Warning: 1. Static electricity may cause damage to the integrated circuits on the motherboard. Before handling any motherboard outside of its protective packaging, ensure that there is no static electric charge in your body. 2. There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or an equivalent type recommended by the manufacturer. 3. Discard used batteries according to the manufacturers instructions.
Observe the following basic precautions when handling the motherboard or other computer components: n Wear a static wrist strap which fits around your wrist and is connected to a natural earth ground. n Touch a grounded or anti-static surface or a metal fixture such as a water pipe. n Avoid contacting the components on add-on cards, motherboards, and modules with the golden fingers connectors plugged into the expansion slot. It is best to handle system components by their monting brackets. The above methods prevent static build-up and cause it to be discharged properly.

Trademark

All trademarks mentioned in this manual are registered properly of the respective owners.
This manual may not, in whole or in part, be photocopied, reproduced, transcribed, translated, or transmitted in whatever form without the written consent of the manufacturer, except for copies retained by the purchaser for personal archival purposes.
Table of Contents Table of Contents Chapter 1 Overview Package Checklist... The AZ31 Mainboard... Main Features... ACPI Ready... FIC Unique Innovation for UsersII (NOVUS II) Enhanced Mainboard Features and System Support.. Chapter 2 Installation Procedures Quick Reference (from Page 2-2 to 2-4).. Mainboard Layout... 1). Clear CMOS, FSB Speed Select, Over Voltage Driving. 2). Front Panel Block Cable Connection.. 3). CPU Fan Installation.. 1). Set System Jumpers... Clear CMOS: CLR_CMOS.. Enabling Over Voltage Driving: Magic Tuner. FSB Speed Select: 100MHz/133MHz.. 2). Install RAM Modules.. Install and Remove DIMMs... 3). Install the CPU... 4). Install Expansion Cards... 5). Connect Devices... Floppy Diskette Drive Connector: FDD.. IDE HDD Device Connectors: PRIMARY, SECONDARY. ATX Power Connector: ATX_PWR.. CPU Fan Connector: CPU_FAN.. System Case Fan Connectors: CHS_FAN, SYS_FAN. CD Audioo-In Connectors: CD_IN1, CD_IN2. Front Panel Block Connector: FPNL.. PS/2 Keyboard and Mouse Connector: PS2_KB, PS2_MS Universal Serial Bus Connectors: Rear USBs, Front USBs Printer Connector: LPT.. Serial Port Connectors: COM.. Audio I/O Jacks: LINE_OUT, LINE_IN, MIC_IN. NOVUS II Module Connector: NOVUS II..

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AZ31 Mainboard Manual Chapter 3 BIOS Setup CMOS Setup Utility... Standard CMOS Setup.. Hard Disk Configurations... Advanced BIOS Features.. Advanced Chipset Features... Integrated Peripherals... Power Management Setup... PNP/PCI Configurations... PC Health Status... Frequency/Voltage Control.. Load Fail-Safe Defaults... Load Optimized Defaults... Supervisor/User Password.. Save and Exit Setup... Exit without Saving.. Quick Reference (German) Quick Reference (French) Quick Reference (Spanish) Quick Reference (Japanese) Quick Reference (Chinese) Quick Reference (Simplified Chinese )
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Overview Chapter 1

Overview
The new Socket A 1stMainboard AZ31 is an microATX sized motherboard supporting the latest generation of AMD Athlon and Duron processors at industry leading speeds. By utilizing DDR ( Double Data Rate ) transfer rate the 100 MHz AMD Athlon system bus effectively reaches speeds of 200 MHz. The AMD Athlon processor offers high-performance cache technology, including 128KB of on-chip level one (L1) , while the Duron features full-speed, on-chip L2 cache memory, and enhanced 3DNow! technology. The 1stMainboard AZ31 has 3 DIMM, for up to 1.5 GB of SDRAM, utilizes the latest PC133 SDRAM technology and is equipped with ECC memory support. The 1stMainboard AZ31 is based around the high performance KT133 chipset comprised of VIA VT 8363 system controller for the North Bridge, and the VIA 686A ( Super South ). The KT133s support for AGP 4x provides the end-user a photo-realistic 3D experience suitable for the most robust 3D games and software environments. Onboard AC97 sound ensures high quality audio, but with the option of being disabled through the BIOS. The 1stMainboard AZ31 also comes equipped with the new NOVUS II range of innovative features that assist in the installation and maintenance of your 1stMainboard. The features include Easy Key, which provides instant keyboard access to the BIOS for adjustments to Clock and Default settings and LogoGenie, which allows you to create your own customized logo to be displayed during system boot up. The BIOS Guardian is an Anti Virus utility that prevents viruses from damaging your system BIOS and rendering your system inoperative. Clockometer is a user friendly Graphic User Interface (GUI) that allows you to change clock speed settings directly, without having to enter the BIOS Sub-Menus. Moreover, audio alert II (mfg. optional) , a friendly onboard voice caution, will advice the error during system boot up. Expansion is provided by 1 AGP and 3 PCI slots. In addition, the 1stMainboard AZ31 is equipped with 2 dual channeled enhanced PCI bus master IDE connectors. Standard I/O connections include 1 serial port, 1 parallel port, 1 PS/2 mouse and keyboard connector, 2 USB connectors, 2 front USB pin-headers and 1 media connector ( Line-In, Line-Out, Mic-In). 1-1

AZ31 Mainboard Manual

Package Checklist
If you discover any item below was damaged or lost, please contact your vendor.
This user manual One FDD cable One HDD cable One ATA/66 cable Audio Alert II module (optional)

The mainboard

Two software CDs (CD Pro, CD Plus and its manual)
IMPORTANT: AMD CPU HEAT SINK INSTALLATION
Be ware finish heat hink install. Before you boot system, please check the heat sink is complete contact with die of CPU.
The poor contact will bring about over heat, it may damage your processor. It is strongly recommended that at least a 200-watt ATX power pupply be used for this motherboard. Make sure that your ATX power supply can supply at least 20 amperes on teh +5-Volt lead and 10ma on the +5-Volt standby lead (+5VSB). Your system may become unstable / unreliable and may experience difficulty in powering up if your power supply is inadequate.

The AZ31 Mainboard

Main Features
s Easy Installation ||BIOS with support for Plug and Play, auto detection of IDE hard drives, ||LS-120|drives, IDE ZIP drives, Windows 95, Windows 98, Windows NT ||4.0, Windows 2000, |and OS/2. s Leading Edge Chipset VIA VT8363 and 686A (Super South) provide integrated DRAM controllers with new Dynamic Power Management Architecture (DPMA), concurrent PCI (2.2), AGP 1.0/2.0 compliant and USB. s Versatile Main Memory Support Accepts up to 1.5GB DRAM using three DIMMs of 32, 64, 128, 256, 512MB with support for lightenning-fast SDRAM (100/133MHz). The latest Virtual Channel Memory (VCM) SDRAM also supported. This board allows the FSB and DRAM to be asynchronous. s AMD Athlon Processors Support Duron Socket A CPU 600/650/700/750MHz at 100MHz FSB with AMD bus for double data transfer rate at 100MHz for an effective 200MHz transfer rate. Athlon Socket A CPU 750/800/850/900*/950*MHz and up to 1GHz*at 100MHz FSB with AMD Athlon bus for double data rate transfers at 100MHz for effective 200MHz transfer rate. s Enhanced PCI Bus Master IDE Controller with Ultra DMA/33 and Ultra DMA/66 Support Integrated Enhanced PCI Bus Master IDE controller features two dualchannel connectors that up to four Enhanced IDE devices, including CDROM and Tape Backup Drives, as well as Hard Disk Drives supporting the new Ultra DMA/66 protocol. Standard PIO Mode 3, PIO Mode 4, DMA Mode 2, DMA Mode 4 devices are also supported.

Overview s AGP and PCI Expansion Slots One AGP Bus expansion slot and three PCI Bus expansion slots provided the room to install a full range of add-on cards. s Compact Onboard Audio Subsystem Embeded in VIA 686A, the audio processor offers an integrated PCI audio controller, DOS games compatible engine, and offers the feature of high-quality music synthesizer. The subsystem utilizes line-out, line-in, and MIC mini-jack external jacks, one joystick port with MIDI interface. s Super Multi Input/Output (I/O) Support Integrated Plug and Play multi-I/O chipset features one high-speed UART 16550 compatible serial port, one EPP/ECP capable parallel port, and one FDD connector.
s Convenient Rear Panel USB Connection Support Two USB ports integrated in the rear I/O panel with two manufacturing optional USB front panel connections allow convenient and high-speed Plug and Play connections to the growing number of USB compliant peripheral devices on the market. s Onboard Accelerated Graphics Port (AGP) The motherboard is installed one 32-bit AGP bus with a dedicated 66MHz/ 133MHz path from the graphics card to the system memory offering much greater bandwidth than the 32-bit PCI bus does. AGP enabled 3D graphics cards can directly access main memory across this fast path instead of using local memory. To make use of the improved AGP performance, the motherboard should be installed with SDRAM type memory and the VGA card and drivers should also be fully AGP compliant. Using Microsofts Windows 98 and Windows 2000 which implement DirectDraw will allow the system to take full use of AGPs benefits without the need to install additional drivers.

ACPI Ready

This mainboard fully implements the new ACPI (Advanced Configuration and Power Interface) 1.0B Hardware and BIOS requirement. If you install ACPI aware of operating system, such as Windows 98, you fully utilized the power saving under ACPI. (Windows 2000 Professional supports ACPI functions.) It is compatible with all other none ACPI operating systems. If you want to setup ACPI feature under Windows 98, please follow the description below: Run Windows 98 setup by using setup/p j on the command line for installing Windows 98 with the ACPI control feature. If you type setup without the parameter /p j, Windows 98 will be installed as APM, PnP mode, no ACPI will be used. For more detail information, please visit the web site of Microsoft. Its address is: www.microsoft.com/hwtest/.
NOTE: If BIOS date is after 12/02/1999, the ACPI will be installed automatically. Users do not need to setup in the above-mentioned way.

FIC Unique Innovation for Users II (NOVUS II) - Enhanced Mainboard Features and System Support
s LogoGenie A user friendly GUI supporting Windows 98, LogoGenie allows you to customize, create or select a Logo which will be displayed when the system is booting. Before execute this LogoGenie function, please make sure the related BIOS feature, BIOS Guardian, is disabled; and refer to its related README file.
NOTE: 1. LogGenie supports Award BIOS only. 2. If you create a Logo file (.bmp) by LogoGenie, the file size must ||||be 640 x 464 x 16 colors (around 145K).
Overview To enable this utility, please proceed as follows: 1. Insert CD Pro 4.X. Select LogoGenie from the Menu and follow the installation instructions. 2. After LogoGenie has been installed, go to Windows Start Box. In Programs Menu, select LogoGenie. Click three check boxes in the pop-up menu for making sure of the BIOS feature (BIOS Guardian) and other anti-virus software are disabled. Read README file carefully. After all these, the next procedure proceeds. 3. In LogoGenie Dialogue Box, choose one of 3 options; and then proceed as introduced in 4 or 5 steps listed on the left hand side of the Dialogue Box. 4. After complete the last step, press OK. The system will reboot to restore the BIOS with your new customized Logo. 5. The system will automatically restart with your customized Logo that appears in background.
WARNING: While excute Step3 below, please do not turn off the sytsem power in order to avoid BIOS damage.
s BIOS Guardian BIOS Guardian by default is enabled. It must be disabled in order to reflash BIOS, thus effectively acts as a fire-wall against viruses that can attack the BIOS while the system is running. BIOS Guardian can be disabled as follows: 1. Go to BIOS Set Up Menu. (Press Del key while booting.) 2. Go to Advanced BIOS Features Set Up Submenu. 3. Disable BIOS Guardian. 4. Save the setting, and restart system.
NOTE: However, if it is disabled and while boot the system, the POST screen will be held and shows you the message to let you know the current status of BIOS Guardian. To press G key will enable the BIOS Guardian again; or simply to press the space bar will continue the booting process.

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InstallationChapter 2 Procedures

Installation Procedures

The mainboard has several user-adjustable jumpers on the board that allow you to configure your system to suit your requirements. This chapter contains information on the various jumper settings on your mainboard. To set up your computer, you must complete the following steps:
s Step 1 - Set system jumpers s Step 2 - Install memory modules s Step 3 - Install the Central Processing Unit (CPU) s Step 4 - Install expansion cards s Step 5 - Connect ribbon cables, cabinet wires, and power supply s Step 6 - Set up BIOS software s Step 7 - Install supporting software tools
WARNING: Excessive torque may damage the mainboard. When using an electric screwdriver on the mainboard, make sure that the torque is set to the allowable range of 5.0 ~ 8.0kg/cm. Mainboard components contain very delicate Integrated Circuit (IC) chips. To prevent static electricity from harming any of the mainboards sensitive components, you should follow the following precautions whenever working on the computer: 1. Unplug the computer when working on the inside. 2. Hold components by the edges and try not to touch the IC ||||chips, leads, or circuitry. 3. Wear an anti-static wrist strap which fits around the wrist. 4. Place components on a grounded anti-static pad or on the bag that came with the component whenever the components are separated from the system.
Quick Reference (from Page 2-2 to 2-4)

Mainboard Layout

Clear CMOS, FSB Speed Select, Over Voltage Driving
Front Panel Block Cable Connection

CPU Fan Installation

This connector is linked to the CPU fan. Without sufficient air circulation, the CPU may overheat resulting in damage to both the CPU and the mainboard. Damage may occur to the mainboard and/or the CPU fan if these pins are used incorrectly. These are not jumpers, do not place jumper caps over these pins.

1). Set System Jumpers

Jumpers are used to select the operation modes for your system. Some jumpers on the board have three metal pins with each pin representing a different function. A 1 is written besides pin 1 on jumpers with three pins. To set a jumper, a black cap containing metal contacts is placed over the jumper pin/s according to the required configuration. A jumper is said to be shorted when the black cap has been placed on one or two of its pins. The types of jumpers used in this manual are shown below:

NOTE: Users are not encouraged to change the jumper settings not listed in this manual. Changing the jumper settings improperly may adversely affect system performance.

Clear CMOS: CLR_CMOS

The CMOS RAM is powered by the onboard button cell battery. To clear the RTC data: (1). Turn off your computer, (2). Move the jumper to CLEAR, (3). Move the jumper back to NORMAL, (4). Turn on your computer, (5). Hold down the <Delete> key during bootup and enter BIOS Setup to re-enter user preferences.
Enabling Over Voltage Driving : Magic Tunner
The 3-pin jumper allows you to start the over voltage driving capability of this mainboard to approach the best performance.
WARNING: Voltage and frequency above CPUs original specifications are not guaranteed to be stable.
FSB Speed Select: 100MHz/133MHz
The jumper allows users to select the front side bus speed.
2). Install Memory Modules

Install and Remove DIMMs

1. 2. 3. Locate the DIMM slots on the mainboard. Install the DIMM straight down into the DIMM slot using both hands. The clip on both ends of the DIMM slot will close up to hold the DIMM in place when the DIMM reaches the slots bottom.
Press the clips with both hands to remove the DIMM. 2-7

3). Install the CPU

The AMD Athlon CPU module resides in the Socket A socket on the board. The Retention Mechanism Assembly that is foldable for saving space when shipping and packing had been installed on the mainboard by the manufacturer. Please follow the steps introduced below to complete the CPU installation.
CAUTION: Make sure to unplug the power supply when adding or removing expansion cards or other system components. Failure to do so may cause severe damage to both the mainboard and expansioncards. Always observe static electricity precautions. Please read Handling Precautions at the start of this manual.
To install the CPU, do the following: 1. Lift the lever on the side of the CPU socket. 2. Handle the chip by its edges and try not to touch any of the pins. 3. Place the CPU in the socket. The chip has two notches to correctly locate the chip. Align two notches of the processor with the two triangular marks on the socket. Do not force the chip. The CPU should slide easily into the socket. 4. Swing the lever to the down position to lock the CPU in place. 5. Place the cooling fan with heatsink on top of the installed CPU.
4). Install Expansion Cards
This section describes how to connect an expansion card to one of your systems expansion slots. Expansion cards are printed circuit boards that, when connected to the mainboard, increase the capabilities of your system. For example, expansion cards can provide video and sound capabilities. The mainboard features five PCI bus and one AGP bus expansion slots.

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PS/2 Keyboard and Mouse Connector: PS2_KB, PS2_MS
These two 6-pin female (PS/2 keyboard is purple color and PS/2 mouse is green color) connectors are used for your PS/2 keyboard and PS/2 mouse.
Universal Serial Bus Connectors: Rear USBs, Front USBs
These two black connectors integrated on the edge of the board are used for linking with USB peripheral devices. This board also provides a connector J5 for linking with the two USB sockets on the front panel of some system cases. Please note your operating system must support USB features, such as MS Windows 98, MS Windows 95 OSR2.5 with USB Supplement.
The figure below is the pin assignment of the J5 connector for two front panel USB connections.

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Printer Connector: LPT
This 25-pin D-Sub female burgundy-colored connector is attached to your printer.
Serial Port Connector: COM
COM allows you to connect with your devices that use serial ports, such as a serial mouse or an external modem.

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Audio I/O Jacks: LINE_OUT, LINE_IN, MIC_IN
LINE_OUT (lime) can be connected to headphones or preferably powered speakers. LINE_IN (light blue) allows tape players or other audio sources to be recorded by your computer or played through the LINE_OUT. MIC_IN (pink) allows microphones to be connected for voice input.
NOVUS II Module Connector: NOVUS II
The connector provides the linkage with optional NOVUS II module for having some more helpful features.

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This Page Left Blank for Note

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BIOS Setup Chapter 3

BIOS Setup

CMOS Setup Utility
A Setup program, built into the system BIOS, is stored in the CMOS RAM. This Setup utility program allows changes to the mainboard configuration settings. It is executed when the user changes system configuration; user changes system backup battery; or the system detects a configuration error and asks the user to run the Setup program. Use the arrow keys to select and press Enter to run the selected program.
NOTE: Please disable this BIOS feature about BIOS Guardian before you start to reflash BIOS. (Please read Page 1-7, Page 3-6 for detail information).

Standard CMOS Setup

The Standard CMOS Setup screen is displayed above. Each item may have one or more option settings. The system BIOS automatically detects memory size, thus no changes are necessary. Use the arrow keys to highlight the item and then use PgUp or PgDn keys to select the value you want in each item. Hard Disk Configurations Capacity: The hard disk size. The unit is Mega Bytes. Cylinder: The cylinder number of the hard disk. Head: The read/write head number of hard disk. Precomp: The cylinder number at which the disk drive changes the write current. Landing Zone: The cylinder number that the disk drive heads (read/write) are seated when the disk drive is parked. Sector: The sector number of each track defined on the hard disk.

Advanced BIOS Features

AZ31 Mainboard Manual Anti-Virus Protection This feature starts the virus scan tool to detect if boot virus in boot sector of the first hard disk drive when booting up. The options are: Enabled (Default), Disabled. CPU Internal Cache When enabled, improves the system performance. Disable this item when testing or trouble-shooting. The options are: Enabled (Default), Disabled. External Cache When enabled, supports an optional cache SRAM. This feature allows you to disable the cache function when the system performance is unstable to run some software. The options are: Enabled (Default), Disabled. Quick Power On Self Test When enabled, allows the BIOS to bypass the extensive memory test. The options are: Enabled (Default), Disabled. First Boot Device This feature allows user to select the boot device priority. The options are: Floppy (Default), LS120, HDD-0, SCSI, CDROM, HDD-1, HDD-2, HDD-3, ZIP100, LAN, Disabled. Second Boot Device This feature allows user to select the boot device priority. The options are: Floppy, LS120, HDD-0 (Default), SCSI, CDROM, HDD-1, HDD-2, HDD-3, ZIP100, LAN, Disabled. Third Boot Device This feature allows user to select the boot device priority. The options are: Floppy, LS120, HDD-0, SCSI, CDROM (Default), HDD-1, HDD-2, HDD-3, ZIP100, LAN, Disabled. Boot Other Device This feature allows user to select the boot device priority. The options are: Enabled (Default), Disabled.
BIOS Setup Swap Floppy Drive Allows you to switch the order in which the operating system accesses the floppy drives during boot up. The options are: Enabled, Disabled (Default). Boot Up Floppy Seek When enabled, assigns the BIOS to perform floppy diskette drive tests by issuing the time-consuming seek commands. The options are: Enabled (Default), Disabled. Boot Up Numlock Status When set to On, allows the BIOS to automatically enable the Num Lock Function when the system boots up. The options are: On (Default), Off. Gate A20 Option When set at Fast, allows a faster access response under Protected mode. The options are: Fast, Normal (Default). Memory Parity/ECC Check Enabling it will add a parity/ECC check to the boot-up memory tests. Set at Enabled only if the system DRAM contains parity. The options are: Disabled (Default), Enabled. Typematic Rate Setting The term typematic means that when a keyboard key is held down, the character is repeatedly entered until the key is released. The options are: Disabled (Default), Enabled. Typematic Rate (Chars/Sec) This feature is available only if the above item, Typematic Rate Setting, is set at Enabled. Sets the rate of a character repeat when the key is held down. The options are: 6 (Default), 8, 10, 12, 15, 20, 24, 30. Typematic Delay (Msec) This feature is available only if the item, Typematic Rate Setting, is set at Enabled. Sets the delay time before a character is repeated. The options are: 250 (Default), 500, 750, 1000 millisecond. 3-5

AZ31 Mainboard Manual Security Option Allows you to set the security level of the system. The options are: Setup (Default), System. OS Select For DRAM > 64MB If your operating system (OS) is OS/2, select the option OS2. Otherwise, stay with the default setting Non-OS2. The options are: Non-OS2 (Default), OS2. HDD S.M.A.R.T. Capability S.M.A.R.T. stands for Self-Monitoring and Analysis Reporting Technology which allows your hard disk drive to report any read/write errors and issues a warning with LDCM installed. The options are: Disabled (Default); Enabled. Report No FDD For WIN 95 When the field under the Standard CMOS Setup Menu for Drive A and/or Drive B is set at None, users must set this field is set at Yes for it to function properly. Otherwise, set at No, even if field for Drive A and/or Drive B is set at None, system will still detect and recognize of a floppy drive(s). The options are: Yes (Default), No. Video BIOS Shadow Allows the BIOS to copy the video ROM code of the add-on video card to the system memory for faster access. The options are: Enabled (Default), Disabled. BIOS Guardian It allows the system to prevent computer viruses. Users will need to disable it to update BIOS. The options are: Enabled (Default), Disabled.
NOTE: Please disable this BIOS feature about BIOS Guardian before you start to reflash BIOS.
Advanced Chipset Features
AZ31 Mainboard Manual Bank 0/1/2/3/4/5 DRAM Timing This feature allows you to select the DRAM read/write speed. The options are: SDRAM 8/10ns (Default), Normal, Medium, Fast, Turbo. SDRAM Cycle Length This item will function only when SDRAM DIMM/s are installed on the mainboard (BIOS auto detection). If the CAS latency of your SDRAM DIMM is 2, set it at 2 to enhance your system performance. If the CAS latency of your SDRAM DIMM is 3, stay with the default setting, 3. The options are: Auto, 3 (Default), 2. DRAM Clock The feature allows users to select the DRAM clock. The options are: Auto, HCLK-33M, HCLK+33M, Host Clock (Default). Memory Hole When you install a Legacy ISA card, this feature allows you to select the memory holes address range of the ISA cycle when the processor accesses the selected address area. Please read your card manual for detail information. When disabled, the memory hole at the 14MB (or 15MB) address will be treated as a DRAM cycle when the processor accesses the 14~16MB (or 15~16MB) address area. The options are: 15M - 16M, Disabled (Default). PCI Master Pipeline Req This feature allows users to disable PCI master device pipeline controller request when necessary. The options are: Enabled (Default), Disabled. P2C/C2P Concurrency This feature allows users to set PCI/AGP Master-to-CPU/ CPU-to-PCI/ AGP Slave concurrent. The options are: Enabled (Default), Disabled. Fast R-W Turn Around It allows users to set DRAM fast read-to-write turn around. The options are: Enabled, Disabled (Default). System BIOS Cacheable When enabled, allows the ROM area F000H-FFFFH to be cacheable when cache controller is activated. The options are: Enabled (Default), Disabled. 3-8

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Integrated Peripherals

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AZ31 Mainboard Manual OnChip IDE Channel0 When enabled, allows you to use the onboard primary PCI IDE. If a hard disk controller card is used, set at Disabled. The options are: Enabled (Default), Disabled. OnChip IDE Channel1 When enabled, allows you to use the onboard secondary PCI IDE. If a hard disk controller card is used, set at Disabled. The options are: Enabled (Default), Disabled. IDE Prefetch Mode When set at Enabled, it allows data to be posted to and prefetched from the primary IDE data ports. Data prefetching is initiated when a data port read occurs. The read prefetch eliments latency to the IDE data ports and allows them to be performed back to back for the highest possible PIO data transfer rates. The first data prot read of a sector is called the demand read. Subsequent data port reads from the sector are called prefetch reads. The demand read and all prefetch reads must be of the same size (16 or 32 bits). The options are: Enabled (Default), Disabled. Primary Master PIO Allows an automatic or a manual configuration of the PCI primary IDE hard disk (master) mode. The options are: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4. Primary Slave PIO Allows an automatic or a manual configuration of the PCI primary IDE hard disk (slave) mode. The options are: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4. Secondary Master PIO Allows an automatic or a manual configuration of the PCI secondary IDE hard disk (master) mode. The options are: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4.

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BIOS Setup Secondary Slave PIO Allows an automatic or a manual configuration of the PCI secondary IDE hard disk (slave) mode. The options are: Auto (Default), Mode 0, Mode 1, Mode 2, Mode 3, Mode 4. Primary Master UDMA Allows you to select the first PCI IDE channel of the first master hard disk mode or to detect it by the BIOS if the hard disk supports UDMA (Ultra DMA, faster than DMA). The options are: Auto (Default), Disable. IDE Primary Slave UDMA Allows you to select the first PCI IDE channel of the first slave hard disk mode or to detect it by the BIOS if the hard disk supports UDMA (Ultra DMA, faster than DMA). The options are: Auto (Default), Disable. IDE Secondary Master UDMA Allows you to select the second PCI IDE channel of the secondary master hard disk mode or to detect it by the BIOS if the hard disk supports UDMA (Ultra DMA, faster than DMA). The options are: Auto (Default), Disable. IDE Secondary Slave UDMA Allows you to select the second PCI IDE channel of the secondary slave hard disk mode or to detect it by the BIOS if the hard disk supports UDMA (Ultra DMA, faster than DMA). The options are: Auto (Default), Disable. Init Display First When you install an AGP VGA card and a PCI VGA card on the board, this feature allows you to select the first initiation of the monitor display from which card. The options are: PCI Slot (Default), AGP. IDE HDD Block Mode When enabled, the system executes read/write requests to hard disk in block mode. The options are: Enabled (Default), Disabled. Onboard FDD Controller When enabled, the floppy diskette drive (FDD) controller is activated. The options are: Enabled (Default), Disabled. 3 - 13

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BIOS Setup PM Control by APM The option No allows the APM (Advanced Power Management) specification be ignored. Selecting Yes will allow the BIOS wait for APMs prompt before it enters Doze mode, Standby mode, or Suspend mode. If the APM is installed, it will prompt the BIOS to set the system into power saving mode when all tasks are done. The options are: No, Yes (Default). Video Off Option This feature provides the selections of the video display power saving mode. The option Suspend - Off allows the video display to go blank if the system enters Suspend mode. The option All Modes - Off allows the video display to go blank if the system enters Doze mode or Suspend mode. The option Always On allows the video display to stay in Standby mode even when the system enters Doze or Suspend mode. The options are: Suspend - Off (Default), All Modes -> Off, Always On. Video Off Method The option V/H SYNC+Blank allows the BIOS to blank off screen display by turning off the V-Sync and H-Sync signals sent from add-on VGA card. DPMS Support allows the BIOS to blank off screen display by your addon VGA card which supports DPMS (Display Power Management Signaling function). Blank Screen allows the BIOS to blank off screen display by turning off the red-green-blue signals. The options are: V/H SYNC+Blank, DPMS Support (Default), Blank Screen.
MODEM Use IRQ This feature allows you to select the IRQ# to meet your modems IRQ#. The options are: 3 (Default), 4, 5, 7, 9, 10, 11. Soft-Off by PWR-BTTN The selection Delay 4 Sec. will allow the system shut down after 4 seconds after the power button is pressed. The selection Instant-Off will allow the system shut down immediately once the power button is pressed. The settings are: Delay 4 Sec, Instant-Off (Default).

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AZ31 Mainboard Manual State After Power Failure The item allows you to select the state that your personal computer returns to after a power failure. If set at Off, the system will not boot after a power failure. If set On, the system will restart after power failure. The settings are: Auto (Default), On, Off. VGA ON enables the power management timers when a no activity events is detected in the VGA. OFF disables the PM timer even if a no activity event is detected. The options are: OFF (Default), ON. LPT & COM LPT/COM enables the power management timers when a no activity event is detected in the LPT and COM ports. LPT (COM) enables the power management timers when a no activity event is detected in the LPT (COM) ports. NONE to disable the PM timer even if a no activity event is detected. The options are: LPT/COM (Default), LPT, COM, NONE. HDD & FDD ON will enable the power management timers when no activity event is detected in the hard drive and floppy drive. OFF disables the PM timer even if no activity event is detected. The options are: OFF, ON (Default). PCI Master To set this feature at ON activates that Power Management feautre (PM) wake-up event for the DMA or bus master (of the LAN card or/and SCSI card). The options are: OFF (Default), ON. PowerOn by PCI Card When set at Enabled, any PCI-PM event awakes the system from a PCIPM controlled state. The options are Disabled (Default) or Enabled. RTC Alarm Resume Enabled allows you to set the time the system will be turned on from the system power-off status. The options are: Enabled, Disabled (Default). Date (of Month) This feature allows you to set the day of the alarm starts when the RTC Alarm Resume From Soft Off is set to be Enabled. The options are: 0, 1.31. 3 - 18

PC Health Status

It allows you and technicians to monitor data provided by the BIOS on this mainboard. Some of them are not user-configurable. Current CPU FAN Speed / Current System FAN Speed These items allow end users and technicians to monitor data provided by the BIOS on this mainboard. It is not user-configurable. 3 - 21
Frequency/Voltage Control
Auto Detect DIMM/PCI Clk When enabled, BIOS will detect the PCI slot and DIMM slot if no any device in, BIOS will auto disable its clock. The options are: Enabled (Default), Disabled. CPU Host/PCI/Spread Spec. This feature allows you to select the combiinations of CPU/PCI clock frequency and the Spread Spectrum. The default setting, Default, will detect your CPU/PCI clock frequency/ Spread Spectrum automatically. The recommended CPU clock frequencies are 100 and 133MHz. The other options may effect the system perfomance. If you set a unappropriate option which leads to a booting problem, keep pressing the Insert key until the display appears will solve it. The options listed all combinations that provided by the system BIOS.

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Load Fail-Safe Defaults
This submenu is selected to diagnose the problem after the computer boots, if the computer will not boot. These settings do not give optimal performance.

Load Optimized Defaults

This submenu is selected for settings which provide the best system performance.

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Supervisor/User Password
To enable the Supervisor/User passwords, select the item from the Standard CMOS Setup. You will be prompted to create your own password. Type your password up to eight characters and press Enter. You will be asked to confirm the password. Type the password again and press Enter. To disable password, press Enter twice when you are prompted to enter a password. A message appears, confirming the password is disabled. Under the BIOS Feature Setup, if Setup is selected under the Security Option field and the Supervisor/User Password is enabled, you will be prompted password every time you try to enter the CMOS Setup Utility. If System is selected and the Supervisor/User Password is enabled, you will be requested to enter the Password every time when you reboot the system or enter the CMOS Setup utility.