Acer 370LXA User manual

370LXA Motherboard
User's Manual
Product Name : 370LXA
Manual Revision : English, 1.1
Trademarks
Intel and Socket 370 are trademarks of Intel Corporation
Award is a trademark of Award Software International Inc.
MS-DOS, Windows 95, Windows 98 and Windows NT are registered trademarks of Microsoft Corporation
OS/2 is a trademark of International Business Machines Corp
Novell is a trademark of Novell Corporation
Sound Blaster SB16 is a trademark of Creative Technology
All other brand and product names are trademarks or registered trademarks of their respective companies
Table of Contents
Chapter 1. Introduction
1.1 Product Overview
1.2 Specifications
1.3 Content
1.4 MotherBoard Layout
Chapter 2. Hardware Setup
2.1 Installation Procedure
2.1.1 Jumper Setting
2.1.2 Clearing the CMOS
2.1.3 CPU Voltage Setting
2.2 Installation of CPU
2.3 Installation of Memory
2.3.1 Installation of 168-pin DIMM
2.3.2 Removal of 168-pin DIMM
2.3.3 Memory Configuration
2.4 I/O Connections/Panel Connections
2.4.1 ATX Power Connector
2.4.2 CPU Fan Connectors
2.4.3 Infrared Connector
2.4.4 Floppy Disk Drive Connector
2.4.5 Primary/Secondary IDE Connector
2.4.6 PS/2 Mouse Port
2.4.7 PS/2 Keyboard Connector
2.4.8 Serial Port
2.4.9 Printer Port
2.4.10 USB Connectors
2.4.11 Wake-up on LAN Connector
2.4.12 Creative's SB_LINK Sound Connector
2.4.13 Panel Connection
Chapter 3. BIOS Setup
3.1 CMOS Setup Utility
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 Integrated Peripherals

3.8 Load BIOS Defaults
3.9 Load Setup Defaults
3.10 Supervisor/User Password
3.11 IDE HDD Auto Detection
3.12 Exit CMOS Setup Utilit
Chapter 1. Introduction
1.1 Product Overview
Thank you for purchasing the 370LXA motherboard. This motherboard utilizes Intel's latest technology, namely 440LX
AGPset chipset. We have conducted a motherboard compatibility test with a variety of hardware and software, such as
CPUs, memory, display cards, CD ROMs, Novell, MS Office....etc and compliance with Year 2000.
We have set high standards on our quality control, with absolute confidence, we believe this product is the wisest choice.
This manual is composed of three sections. The first section is the introduction of this motherboard, and the second
section explains the proper procedure to setup the motherboard, the third section provides information on how to setup
the CMOS.
Features:
- Support Desktop Management Interface (DMI) through BIOS.
- Support Accelerated Graphics Port (AGP) cards for high performance.
- Modem Remote Ring On.
- Wake up on LAN.
- RTC Wake Up Alarm: Program the date/time to wake up your system.
- Support Advanced Configuration Power Interface (ACPI).
- BIOS Green feature function, and Plug & Play Flash ROM.
1.2 Specifications
CPU: - Supports Intel Socket 370 Processors 266 ~ 500 + MHz
Chipset: - Intel 440LX AGPset chipset
DIMM: - Supports 3.3V EDO or SDRAM in 3 168-pin banks, each bank
consists of 1x168-pin 64-bit DIMM socket, which can support
memory sizes of 8/16/32/64/128 MB modules.
- Supports up to a maximum of 384 MB with SDRAM & 768 MB with
EDO system memory.
IDE: - Dual channel PIO and PCI Bus Master IDE ports support up to 4
EIDE devices for HDD or CD-ROM
- Supports PIO Mode 4 with data transfer rate up to 14 MB/Sec
- Supports Ultra DMA 33 (UDMA) with data transfer rate up to 33
MB/Sec
BIOS: - Award BIOS V4.51 with built-in Anti-Virus, DMI support, and green
function (Plug-and-Play BIOS)
- Supports CD-ROM, SCSI, and LS120/ZIP boot up
I/O Devices: - One FDD control port supports two of the 5.25" or 3.5" floppy
drives up to 2.88 MB.
- Two high-speed 16550 UART compatible serial ports
- One parallel ports with ECP/ EPP compatibility.
- One PS/2 mouse port
- One PS/2 keyboard connector
IR Port: - One IrDA/ASKIR compatible Infrared interface port.(Cable
optional)
USB Ports: - Two Universal Serial Bus (USB) ports support up to 127 peripheral
devices.
ATX Power: - Supports Modem remote Ring-On function .
- Supports software power off function
- Supports RTC Wake-Up.
- Supports Wake up on LAN.
Others: - Supports Creative's Sound Blaster 16 compatibility for real-mode
DOS games.
Expansion Slots: - Four 32-bit PCI expansion slots
- Three 16-bit ISA expansion slots
- One 32-bit AGP expansion slot
Operating System: - Supports Windows 95/98, Windows NT, MS-DOS V. 6.22, OS/2,
Novell, Unix, SCO UNIX.....
Dimension: - 305 mm x 180 mm ATX Form factor
1.3 Content

The 370LXA motherboard box contains the following items:
- One 370LXA Motherboard
- One IDE Ribbon Cable
- One Floppy Ribbon Cable
- One Driver diskette
- User's Manual
1.4 MotherBoard Layout
Chapter 2. Hardware Setup
2.1 Installation Procedure
1. Jumper setting (BIOS)
2. Installation of CPU
3. Installation of Memory
4. I/O Connections & Panel Connections
2.1.1 Jumper Setting

In this manual , (1-2) represents the first and second pins of the jumper. (2-3) represents the second and third
pins of the jumper.
Yellow Jumper Cap: Sets the Function of Flash CMOS
JRTC1
WARNING: Electronic parts are Static sensitive. To prevent damage to the computer and its parts please take the
following measures.
- Work on a surface such as concrete, linoleum or hard wood floor.
- Ground your self with either a properly installed grounding strap or by touching a major electrical
appliance long enough to discharge the static.
2.1.2 Clearing the CMOS (Yellow Jumper Cap)
JRTC1: CMOS Function Selection
1-2:Clear data
2-3:Normal Operation(Default Setting)
How to Clear the CMOS Setting
1. Turn off the power.
2. Remove power cable from power connector .
3. Remove Yellow Jumper Cap from JRTC1(2-3)and put on JRTC1(1-2)to remove the CMOS setting.
4. Remove Yellow Jumper Cap from JRTC1(1-2)and put on JRTC1(2-3).
5. Connect power cable back to power connector .
6. Turn on the power.
7. While the system reboots, press <DEL> key to set the BIOS setup.
2.1.3 CPU Voltage Setting
The motherboard supports Socket 370 CPU VID function, the CPU core voltage is automatically detected, the range is
from 1.3V to 2.0V.
2.2 Installation of CPU
Before installing CPU, make sure the power is off. Locate the level bar on the PGA370 ZIF socket. Push level bar away
from the socket and pull upward 90 degrees. Insert the CPU into the socket. Make sure the notch of the CPU
corresponds with the white dot on the ZIF socket (the corner without pin socket). Do not push in the CPU. Make sure all
pins are aligned with the CPU socket. ON the level bar.
2.3 Installation of Memory
370LXA motherboard has 3x168-pin 64-bit Dual Inline Memory Module(DIMM)sockets divided into 3 banks. You can
install 3.3V Extended Data Output(EDO)or Unbuffered Synchronous DRAM(SDRAM)memory. This will increase the
system reliability.
2.3.1 Installation of 168-pin DIMM (Dual Inline Memory Module)
1. Before inserting the DIMM, make sure the pin1 of the DIMM matches with the pin1 on the DIMM socket.
2. Insert DIMM into the DIMM sockets at a 90-degree angle and press down.

2.3.2 Removal of 168-pin DIMM
1. Press the holding clips on both sides of the socket outward to release the DIMM.
2. Gently pull the DIMM out of the socket.
2.3.3 Memory Configuration
There is no jumper setting required for the memory size or type. It is automatically detected by the system BIOS, and the
total memory size is to add them together.
DIMM Socket DIMM Modules
DIMM1 EDO/SDRAM 8, 16, 32, 64, 128MB
DIMM2 EDO/SDRAM 8, 16, 32, 64, 128MB
DIMM3 EDO/SDRAM 8, 16, 32, 64, 128MB
2.4 I/O Connections/Panel Connections
I/O Connections
J2 ATX Power Connector
JFAN1 CPU fan connector
JIR1 IrDA Connector ( Cable optional )
JFLP1 Floppy Disk Drive Connector
IDE1, 2 Primary/ Secondary IDE Connectors
JMOUSE1 PS/2 Mouse Port
JKB1 PS/2 Keyboard Connector
JCOM1, 2 Serial Ports 1 & 2
JPRT1 Printer Port
USB1, 2 USB Connector
JWOL Wake up on LAN connector
SB_LINK For link with Creative's Sound Blaster 16
2.4.1 ATX Power Connector (20-pin J2)
Make sure that the power supply is off before connecting or disconnecting the power cable.
2.4.2 CPU Fan Connectors (3-pin FAN)
Connect the fan's plug to the board taking into consideration the polarity of the connector

2.4.3 Infrared (IrDA) Connector (5-pin JIR1)
This connector supports the optional wireless transmitting and receiving infrared module, with this module and
application software such as Laplink or Win95 Direct Cable Connection, user can transfer files to or from their laptops,
notebooks, PDA, PCs and printers. The connector supports IrDA (115.2Kbps, 2 meters) and ASK-IR (56Kbps). Install
infrared module onto Infrared connector and configure the setting through UART Mode Select in Integrated Peripherals
to select whether UART is directed for use with COM2 or Infrared.
2.4.4 Floppy Disk Drive Connector (34-pin JFLP1)
This connector supports the provided floppy disk drive ribbon cable. Orient the red stripe to pin
2.4.5 Primary/Secondary IDE Connector (Two 40-pin IDE)
These connectors support the provided IDE hard disk ribbon cable. 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.
2.4.6 PS/2 Mouse Port (6-pin Mini-Din JMOUSE1)
The system will direct IRQ12 to the PS/2 mouse.
2.4.7 PS/2 Keyboard Connector (6-pin Mini-Din JKB1)
This connection is for a standard keyboard using a PS/2 plug. You may use a Din to Mini-Din adapter on standard AT
keyboards.

2.4.8 Serial Port (Two 9-pin D-type JCOM)
2.4.9 Printer Port (25-pin D-type JPRT1)
You can enable the parallel port and choose the IRQ through the Onboard Parallel Port setting in Integrated Peripherals
of the COMS SETUP UTILITY.
2.4.10 USB Connectors (Two 4-pin USB)
You can attach USB devices to the USB connector.
2.4.11 Wake-up on LAN Connector (3-pin JWOL)
The connector powers up the system when a wakeup packet or signal is received from the network . This feature
requires the Wake up on LAN function in BIOS is set to Enabled and that your system has an ATX power supply with at
least 720mA +5V standby power.
2.4.12 Creative's SB_LINK Sound Connector (6-pin SB_LINK)
The SB_LINK serves as a bridge between the mainboard and Creative's PCI sound card. This connector delivers Sound
Blaster 16 compatibility for real-mode DOS games.

2.4.13 Panel Connection (24-pin JFRNT1)
JFRNT1
Connector Function
GREENLED Suspend Mode LED
PWRLED Power LED
KEYLK Keylock Switch
SPKR Speaker
RESET Reset Switch
IDELED HDD LED
PWRBNT ATX Power Button Connector
SMISW Sleep Switch
WARNING: To avoid the system from failing, turn off the power before connecting any devices to the system.
Chapter 3. BIOS Setup
3.1 CMOS Setup Utility
To activate CMOS Setup, press <DEL> key immediately after you turn on the system. The following message "Press
DEL to enter SETUP" should appear in the lower left hand corner of your screen.
When you enter the CMOS Setup Utility, the Main Menu will be displayed ( Figure 3-1 ). You can use arrow keys to
select your function, press <Enter> key to accept the selection and enter the sub-menu.
Figure 3-1. CMOS Setup Utility Main Screen
ROM PCI/ISA BIOS (XXXXXXXX)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
3.2 Standard CMOS Setup
With the sub-menu ( Figure 3-2 ), you can setup the; system date, system time, hard and floppy drive type, and display
adapter type. Please refer to your equipment specification when changing the setup. Use arrow keys to highlight items,
and use <PageUp>, <PageDown>, <+>, or <-> keys to scroll through the available options.
Figure 3-2. Standard CMOS Setup Screen
ROM PCI/ISA BIOS (XXXXXXXX)
STANDARD CMOS SETUP
AWARD SOFTWARE, INC.

3.2.1 Date
To assign the system date, the format is "mm.dd.yy". The input range for the Month is 1-12. Range for Date is 1-31. Range for
Year is 1994-2079. System BIOS will calculate the day of the week automatically.
3.2.2 Time
To assign the system time, the format is "hh:mm:ss". The setting is in military time. When entering 2:34pm enter "14:34:00".
3.2.3 Hard Disks Setting
The BIOS supports Dual-Channel PIO and PCI Bus Master IDE ports. Each port supports one master and one slave hard drive.
You can use <PageUp> or <PageDown> key to change hard drive type. Incorrect setting may result in boot up error or system
hang.
If your hard disk drive is not listed, you can select Type "USER" to define your own drive manually. We recommend that you
select Type "AUTO" for all drives. The BIOS will auto-detect the hard disk drive and CD-ROM drive at the POST stage.
If your hard disk drive is a SCSI device, please select "None" for your hard drive setting.
3.2.4 Floppy Drives A&B Setting
Select your floppy disk drive type. Options are 360KB(5.25"), 720KB(3.5"), 1.2MB(5.25"), 1.44MB(3.5"), 2.88MB(3.5").
3.2.5 Video Display Adapter Setting
Select the display adapter type for your system. Options are EGA/VGA, MONO, CGA40 and CGA80.
3.2.6 Halt On
This function allows the system to halt when an error is detected during Power-On Self-Test.
3.3 BIOS Features Setup
The sub-menu (Figure 3-3) includes all AWARD enhanced functions. The correct setting can enhance boot up efficiency.
You can assign system speed, setup sequence, typematic and system password setting. You can enter <F1> key for
help on highlighted topics. If you want to restore values before the changes you just made, press <F5> key. If you want
to restore default value, press <F6> or <F7> key.
Figure 3-3. BIOS FEATURES SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
BIOS FEATURES SETUP
AWARD SOFTWARE, INC.

3.3.1 Virus Warning
When enabled, the BIOS will monitor the boot sector and the partition table on the hard drive for any attempt to modify. If an
attempt is detected, the BIOS will halt the system and prompt the warning message. Select "Disabled" if you are installing a new
operating system.
3.3.2 CPU Internal/External Cache
These options are to enable or disable CPU Internal (L1) Cache, or External (L2) Cache.
3.3.3 CPU L2 Cache ECC Checking
Select "Enabled" to enable CPU L2 Cache ECC Checking.
Select "Disabled" to disable CPU L2 Cache ECC Checking.
3.3.4 Quick Power On Self Test
Select "Enabled" to speed up time required to complete Power-On Self-Test.
3.3.5 Boot Sequence
This option allows user to assign boot sequence of the system. Available options are A, C, D, E, F, CD-ROM, SCSI and
LS120/ZIP.
3.3.6 Swap Floppy Drive
When enabled, physical drive A will be assigned to logical drive B, and physical drive B will be assigned to logical drive A.
3.3.7 Boot Up Floppy Seek
The system will detect and verify operation of the floppy drive type .
3.3.8 Boot Up Numlock Status
The option allows the <NumLock> key to be activated after system boot up.
3.3.9 Boot Up System Speed
This option selects system boot up speed.
3.3.10 Typematic Rate Setting
Select "Enabled" to configure "Typematic Rate" and "Typematic Delay" functions.
3.3.11 Typematic Rate
Use this option to set the rate at which a character keeps repeating while you hold down a key.
3.3.12 Typematic Delay
Select "Enabled" to set the length of delay before key strokes to repeat. Available options are "250", "500", "750", and "1000".
3.3.13 Security Option
You can select whether the password is required every time the system boots or only when you enter the Setup. You can assign
"Supervisor Password" and "User Password" in the main CMOS Setup Utility Screen.

3.3.14 PCI/VGA Palette Snoop
Enable this option to correct screen color shifts, when there is a combination of VGA cards, accelerator cards, or MPEG cards
present.
3.3.15 OS Select for DRAM > 64MB
If you are using OS/2 operating system and installed memory is larger than 64MB. You need to have the setting in the enable
mode.
3.3.16 Video BIOS Shadow
Video shadow copies BIOS code from slower ROM to faster RAM. BIOS can then execute from RAM.
3.3.17 C8000-CBFFF /DC000-DFFFF Shadow
Optional firmware will be copied from ROM to RAM. When this option is enabled.
3.4 Chipset Features Setup
These settings are intended for the Chipset function on the motherboard. Fine tuning these options, enhances the
performance of the system.
Figure 3.4 CHIPSET FEATURES SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
3.4.1 Auto Configuration
The optimum value for the chipset and CPU will be automatically loaded when enabled.
3.4.2 DRAM Speed Selection
This option must match the memory speed. If the installed memory is 60ns type, you should set it to "60".
3.4.3 EDO RAS# To CAS# Delay
These are timing of EDO CAS Latency and RAS to CAS Delay, calculated by clocks. They are important parameters affects
EDO performance.
3.4.4 EDO RAS# Precharge Time
The RAS Recharge means the timing to inactive RAS and the timing for DRAM to do Recharge before next RAS can be issued.
3.4.5 System BIOS Cacheable
Allows the system BIOS to be cached for faster system performance.
3.4.6 Video BIOS Cacheable
Allows the video BIOS to be cached for faster video performance.
3.4.7 Video RAM Cacheable
This item lets you cache Video RAM A000 and B000.
3.4.8 8 Bit I/O Recovery Time

This option specifies the length of a delay inserted between consecutive 8-bit I/O operations.
3.4.9 16 Bit I/O Recovery Time
This option specifies the length of a delay inserted between consecutive 16-bit I/O operations.
3.4.10 Memory Hole At 15M-16M
Enabling this feature reserves 15MB to 16MB memory address space to ISA expansion cards that specifically require this
setting. This makes the memory from 15MB and up unavailable to the system. Expansion cards can only access memory up to
16MB.
3.4.11 Passive Release
This function is used to meet the latency of the ISA bus master. Try to enable or disable it, if you have ISA card compatibility
problem.
3.4.12 Delayed Transaction
This function is used to meet the latency of PCI cycles to from ISA bus. Try to enable or disable it, if you have ISA card
compatibility problem.
3.4.13 AGP Aperture Size (MB)
Choose 4, 8, 16, 32, 64, 128, 256MB. Memory-mapped, graphics data structures can reside in the Graphics Aperture.
3.4.14 SDRAM RAS-to-CAS Delay
These are timing of SDRAM CAS Latency and RAS to CAS Delay, Calculated by clocks. They are important parameters
affects SDRAM Performance.
3.4.15 SDRAM RAS Precharge Time
The RAS precharge means the timing to inactive RAS and the timing for DRAM to do precharge before next RAS can be
issued.
3.4.16 CPU Host Clock
Default is 66 MHz. Choose 66, 75, 83MHz for the external frequency of your CPU.
The 75, 83MHz frequency setting are optional.
The frequency mapping table of the elements:
Ext. frequency AGP PCI ISA DIMM
66MHz 66MHz 33MHz 8.33MHz 66MHz
75MHz 75MHz 37.5MHz 8.33MHz 75MHz
83MHz 83MHz 41.6MHz 8.33MHz 83MHz
Notice: The 75, 83 frequency setting are over specification.
Warning: Over specification operations are not recommended.
3.5 Power Management Setup
Power management decreases power usage under the pre-defined standby time range.
Figure 3-5. POWER MANAGEMENT SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
POWER MANAGEMENT SETUP
AWARD SOFTWARE, INC.

3.5.1 ACPI Function
This item allows you to enable or disable the function of Advanced
Configuration and Power Interface which offers improved power management .
3.5.2 Power Management
Mini Saving System starts power saving function when the
inactivity period exceeds 1 hour.
Max Saving System starts power saving function when the
inactivity period exceeds 1 min.
User Defined Allows user to define the inactivity period before
power saving function activates,
3.5.3 PM Control by APM
Select "Yes" if your system has Advanced Power Management (APM).
3.5.4 Video Off Method
This field defines the video off features. The following options are available: DPMS OFF, DPMS Reduce ON, Blank Screen, V/H
SYNC+Blank, DPMS Standby, and DPMS Suspend. The DPMS (Display Power Management System) features allow the BIOS
to control the video display card if it supports the DPMS feature.
3.5.5 Video Off After
This option allows your monitor to blank after your system went into Doze, Standby or Suspend mode. You can elect to not
blank screen by select N/A. Default value is "Standby".
3.5.6 Doze Mode
When system is inactive after the predefined time limit, system performance will drop down. This is the first level of Power
Management.
3.5.7 Standby Mode
System turns off the video signal and the fixed drives. This is the second level of Power Management.
3.5.8 Suspend Mode
System further shuts down all devices except for CPU itself. This is the third level of Power Management.
3.5.9 HDD Power Down
This instructs hard drives to shut off while in the Power Management modes.
3.5.10 VGA Active Monitor
To enable or disable the detection of VGA activity for power down state transition.
3.5.11 Soft-off by PWR-BTTN
When set to "Delay 4 Sec.", the ATX switch can be used as a normal system power-off button when pressed for less than 4
seconds. "Instant" disables the ATX switch function when the button is pressed under 4 seconds.

3.5.12 Resume by Ring
This option lets you specify enable or disable external Modem Wake Up function. The function of power on through modem
when system is off.
To select "Enabled" : To let the system to enter the environment of DOS or Windows 95/98 OS before system is power off. As
long as there are any massage through the Modem to enter the System during system is power off. The system will enable
power on function.
3.5.13 Resume by Alarm
Set this option to enable or disable the RTC Alarm to Wake Up the system which is set at soft Off.
3.5.14 Wake up on LAN
This allows you to remotely power up your system through your network by sending a wake-up frame or signal. With this
feature, you can remotely upload/download data to/from systems during off-peak hours. Set to Enabled to set this
feature.
3.5.15 Date (of Month) Alarm, Time (hh:mm:ss) Alarm
Set these options to specify the RTC Alarm time on Date / Hour / Minute / Second.
3.5.16 IRQ 8 Break Suspend
To enable or disable the detection of IRQ 8 (RTC) event for power down state transition.
3.5.17 IRQ[3-7, 9-15], NMI
To enable or disable the detection of IRQ 3-7, IRQ 9-15 or NMI interrupt events for power down state transition.
3.5.18 Primary/Secondary IDE 0/1, Floppy Disk, Serial & 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 port.
3.6 PNP/PCI Configuration Setup
ROM PCI / ISA BIOS (XXXXXXXX)
PNP/PCI CONFIGURATION
AWARD SOFTWARE, INC.
3.6.1 PNP OS Installed
This field allows you to use a Plug-and-Play (PnP) operating system. Please set it as " No"“ if the operating system has no PnP
function or to avoid reassigning the IRQs by the operating system.
3.6.2 Resources Controlled By
Default setting is "Auto". This setting allows the BIOS to self detect setting and Plug-and-Play devices during start up. The user
can select and configure IRQs under "Manual" mode.
3.6.3 Reset Configuration Data
In case a conflict occurs after you assign the IRQs or after you configure your system, you can enable this function to allow your
system to automatically reset your configuration and reassign the IRQs, DMAs, and I/O address.

3.6.4 IRQ-xx assigned to
If your ISA card is not PnP compatible and requires a special IRQ to support its function, set the selected IRQ-x assigned to
:"Legacy ISA". This setting informs the PnP BIOS to reserve the selected IRQ for the installed legacy ISA card.
3.6.5 DMA-x assigned to
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.
3.6.6 PCI IDE IRQ Map To
Some old PCI IDE add-on cards are not fully PnP compatible. These cards require you to specify the slot in use to allow the
BIOS to properly configure the PnP resources.
3.6.7 Primary/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.
3.6.8 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.
3.6.9 Assign IRQ For USB
Default is Enabled. You can disable this item when you do not attach any USB devices on board and need extra IRQ for
other device. The yellow exclamation mark will be shown in System/Device Manager under Windows 95/98 if you disable
this item. This is a normal status.
3.7 Integrated Peripherals
You can control Input and Output functions from this screen.
Figure 3-7 Integrated Peripherals
ROM PCI / ISA BIOS (XXXXXXXX)
INTEGRATED PERIPHERALS
AWARD SOFTWARE, INC.
3.7.1 IDE HDD Block Mode
This feature enhances disk performance by allowing multi-sector data transfers and eliminates the interrupt handling time for
each sector.
3.7.2 IDE Primary & Secondary Master/Slave PIO
These four PIO fields let you set a PIO mode (0-4) for each of four IDE devices. When under "Auto" mode, the system
automatically set the best mode for each device
3.7.3 IDE Primary & Secondary Master/Slave UDMA
When set to "Auto" mode, the system will detect if the hard drive supports Ultra DMA mode.
3.7.4 On-Chip primary/Secondary PCI IDE
Select "Enabled" to activate each on-board IDE channel separately, Select "Disabled", if you install an add-on IDE Control card

3.7.5 USB Keyboard Support
This item lets you enable or disable the USB keyboard driver within the onboard BIOS.
3.7.6 Init Display First
This item lets the system to detect AGP or PCI-Slot first when boot-up.
3.7.7 Onboard FDC Controller
Select "Enabled" to activate the on-board FDC
Select "Disabled" to activate an add-on FDC
3.7.8 Onboard UART Port 1 & 2
Select an address and corresponding interrupt for the first/second serial port. The default value for the first serial port is
"3F8/IRQ4" and the second serial port is "2F8/IRQ3".
3.7.9 UART2 Mode
Select to activate the Infrared transfer function.
3.7.10 Onboard Parallel Port
Select address and interrupt for the Parallel port.
3.7.11 Parallel Port Mode
Select an operating mode for the parallel port. Mode options are SPP, EPP1.7, ECPEPP1.7, EPP1.9, ECP and ECPEPP1.9.
3.7.12 ECP Mode Use DMA
Select a DMA channel if parallel port is set as "ECP" , "ECPEPP1.7" or " ECPEPP1.9".
3.8 Load BIOS Defaults
This loads the standard BIOS default values. To select, highlight it and press the <Enter> key. Then press the <Y> and
<Enter> keys to confirm. Otherwise, press the <N> key to cancel.
3.9 Load Setup Defaults
This feature loads the setup default values from BIOS default table. To select, highlight it and press the <Enter> key.
Then press the <Y> and <Enter> keys to confirm. Otherwise, press the <N> key to cancel.
3.10 Supervisor/User Password
You can assign, modify, or cancel password settings. To modify, highlight "Supervisor Password" or "User Password" and
press the <Enter> key. The screen will prompt you ("Enter Password:"). Enter your password. The maximum size of the
password is 8 characters. System will prompt you to reenter the password to verify. Remember the passwords are case
sensitive.
If you want to remove the passwords, either delete passwords or press <Enter> when prompting for new password.
If you want it to require password upon initial system startup and upon entering the CMOS Setup Utility, you will need to
change the selection of the (Security Option) under (BIOS FEATURES SETUP) to "System".
If the setting is "Setup", the system will only require the password you activate CMOS Setup Utility.
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. 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 are 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 Exit CMOS Setup Utility
Press the <F10> key to save the setup and exit. Press <ESC> key to exit without saving. Either saving or not saving
modifications, screen will prompt user to confirm, and system will reboot on exit.