Gigabyte GA-686LX User Manual

Hardware Installation

To complete the mainboard installation, the peripheral device could be installed now. The basic system needs a display interface card.

If the PCI - Bus device is to be installed in the system, any one of five PCI Bus slots can be used.

3.12. KEYBOARD & PS/2 MOUSE INSTALLATION

The main board supports PS/2 connector type keyboard & Mouse (CN5). The BIOS will auto detect whether the PS/2 Mouse is installed or nor &

assign IRQ12 for Mouse port if which was installed. After installing the peripheral device, the user should check everything again,

and prepare to power-on the system.

3.13. KEYBOARD SETTING FUNCTION

After booting the O.S., there are some special functions used by keyboard as follows:

"CTRL_ALT_DEL" − Pressing these keys simultaneously will cause

system to Warm Start (Software Reset).

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4. BIOS CONFIGURATION

Award's BIOS ROM has a built-in Setup program that allows users to modify the basic system configuration.

This type of information is stored in battery-backed CMOS SRAM so that it retains the Setup information when the power is turned off.

4.1. ENTERING SETUP

Power ON the computer and press <Del> immediately will allow you to enter Setup.

The other way to enter Setup is to power on the computer, when the below message appears briefly at the bottom of the screen during the POST (Power On Self Test), press <Del> key or simultaneously press <Ctrl>, <Alt>, and <Esc> keys.

TO ENTER SETUP BEFORE BOOT PRESS CTRL-ALT-ESC OR DEL KEY

If the message disappears before you respond and you still wish to enter Setup, restart the system to try again by turning it OFF then ON or pressing the "RESET" bottom on the system case.

You may also restart by simultaneously press <Ctrl>, <Alt>, and <Del> keys.

If you do not press the keys at the correct time and the system does not boot, an error message will be displayed and you will again be asked to,

PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP

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BIOS Configuration

4.2. CONTROL KEYS

Up arrow Move to previous item Down arrow Move to next item Left arrow Move to the item in the left hand Right arrow Move to the item in the right hand Esc key Main Menu - Quit and not save changes into CMOS

Status Page Setup Menu and Option Page Setup Menu -

Exit current page and return to Main Menu PgUp key Increase the numeric value or make changes PgDn key Decrease the numeric value or make changes F1 key General help, only for Status Page Setup Menu and

Option Page Setup Menu F2 key Change color from total 16 colors F3 key Calendar, only for Status Page Setup Menu F4 key Reserved F5 key Restore the previous CMOS value from CMOS, only for

Option Page Setup Menu F6 key Load the default CMOS value from BIOS default table,

only for Option Page Setup Menu F7 key Load the default F8 key Reserved F9 key Reserved F10 key Save all the CMOS changes, only for Main Menu

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4.3. GETTING HELP

4.3.1. Main Menu

The on-line description of the highlighted setup function is displayed at the bottom of the screen.

4.3.2. Status Page Setup Menu / Option Page Setup Menu

Press F1 to pop up a small help window that describes the appropriate keys to use and the possible selections for the highlighted item. To exit the Help Window press <Esc>.

4.4. THE MAIN MENU

Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 4.1) will appear on the screen.

The Main Menu allows you to select from seven setup functions and two exit choices. Use arrow keys to select among the items and press <Enter> to accept or enter the sub-menu.

ROM PCI / ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE, INC.

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PNP/PCI CONFIGURATION

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC

: Quit

F10

: Save & Exit Setup (Shift)F2

Time, Date, Hard Disk Type, ...

Figure 4.1: Main Menu

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

: Select Item : Change Color

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BIOS Configuration

• Standard CMOS setup

This setup page includes all the items in a standard compatible BIOS.

• BIOS features setup

This setup page includes all the items of Award special enhanced features.

• Chipset features setup

This setup page includes all the items of chipset special features.

• Power management setup

This setup page includes all the items of Green function features.

• PNP/PCI configuration

This setup page includes all the configurations of PCI & PNP ISA resources.

• Integrated peripherals

This setup page includes all onboard peripherals.

• Load setup defaults

BIOS defaults indicates the most appropriate value of the system parameter which the system would be in safe configuration.

• User password

Change, set, or disable password. It allows you to limit access to the system and Setup, or just to Setup.

• IDE HDD auto detection

Automatically configure hard disk parameter.

• Save & exit setup

Save CMOS value changes to CMOS and exit setup.

• Exit without save

Abandon all CMOS value changes and exit setup.

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4.5. STANDARD CMOS SETUP MENU

The items in Standard CMOS Setup Menu (Figure 4.2) are divided into 9 categories. Each category includes no, one or more than one setup items. Use the arrows to highlight the item and then use the <PgUp> or <PgDn> keys to select the value you want in each item.

ROM PCI / ISA BIOS

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

Date (mm:dd:yy) Time (hh:mm:ss)

Primary Primary Secondary Master Secondary

Driver A Driver B Floppy 3 Mode Support : Disabled

Video Halt On : All Errors

ESCF1: Quit

: Help (Shift)F2

: Mon, Aug 25 1997 : 16 : 45 : 02

Master Slave

Slave

: 1.44M , 3.5 in. : None

: EGA/VGA

: Auto : None : None : None

HEAD PRECOMP LANDZ SECTOR

CYLSHARD DISKS TYPE MODE

SIZE

0 0 0 0

Extended Memory:

: Select Item

: Change Color

000 0

Base Memory:

Other Memory:

Total Memory:

PU/PD/+/- : Modify

0 0000 0 0000 0 0000 0

640 K

15360 K

384 K

16384 K

Figure 4.2: Standard CMOS Setup Menu

• Date

The date format is <day>, <date> <month> <year>. Press <F3> to show the calendar.

day The day, from Sun to Sat, determined by the BIOS and is

display-only

date The date, from 1 to 31 (or the maximum allowed in the

month)

month The month, Jan. through Dec.

Auto

---------

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BIOS Configuration

year The year, from 1994 through 2079

• Time

The times format in <hour> <minute> <second>. The time is calculated base on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.

• Primary HDDs / Secondary HDDs

The category identifies the types of hard disk drive C drives F 4 devices that has been installed in the computer. There are 45 pre-defined types and a user definable type. Type 1 to Type 45 are pre-defined. Type User is user-definable and type Auto will automatically detect HDD's type.

Press PgUp or PgDn to select a numbered hard disk type or type the number and press <Enter>. Note that the specifications of your drive must match with the drive table. The hard disk will not work properly if you enter improper information for this category.

If your hard disk drive type is not matched or listed, you can use Type User to define your own drive type manually. If you select Type User, related information is asked to be entered to the following items. Enter the information directly from the keyboard and press <Enter>. Those information should be provided in the documentation form your hard disk vendor or the system manufacturer.

CYLS. Number of cylinders HEADS number of heads PRECOMP write precomp LANDZONE landing zone SECTORS number of sectors

If a hard disk has not been installed select NONE and press <Enter>.

• Drive A type / Drive B type

The category identifies the types of floppy disk drive A or drive B that has been installed in the computer.

None No floppy drive installed 360K, 5.25 in. 5.25 inch PC-type standard drive; 360K byte

capacity.

1.2M, 5.25 in. 5.25 inch AT-type high-density drive; 1.2M byte capacity (3.5 inch when 3 Mode is Enabled).

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720K, 3.5 in. 3.5 inch double-sided drive; 720K byte capacity

1.44M, 3.5 in. 3.5 inch double-sided drive; 1.44M byte capacity.

2.88M, 3.5 in. 3.5 inch double-sided drive; 2.88M byte capacity.

• Floppy 3 Mode Support (for Japan Area)

Disable Normal Floppy Drive. Drive A Drive A is 3 mode Floppy Drive. Drive B Drive B is 3 mode Floppy Drive. Both Drive A & B is 3 mode Floppy Drive.

• Video

The category detects the type of adapter used for the primary system monitor that must matches your video display card and monitor. Although secondary monitors are supported, you do not have to select the type in setup.

EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For

EGA, VGA, SVGA, or PGA monitor adapters CGA 40 Color Graphics Adapter, power up in 40 column mode CGA 80 Color Graphics Adapter, power up in 80 column mode MONO Monochrome adapter, includes high resolution

monochrome adapters

• Halt on

The category determines whether the computer will stop if an error is detected during power up.

NO errors The system boot will not be stopped for any error

that may be detected

All errors Whenever the BIOS detects a non-fatal error the

system will be stopped and you will be prompted

All, But Keyboard The system boot will not stop for a keyboard

error; it will stop for all other errors

All, But Diskette The system boot will not stop for a disk error; it

will stop for all other errors

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BIOS Configuration

All, But Disk/Key The system boot will not stop for a keyboard or

disk error; it will stop for all other errors

• Memory

The category is display-only which is determined by POST (Power On Self Test) of the BIOS.

Base Memory

The POST of the BIOS will determine the amount of base (or conventional) memory installed in the system.

The value of the base memory is typically 512 K for systems with 512 K memory installed on the motherboard, or 640 K for systems with 640 K or more memory installed on the motherboard.

Extended Memory

The BIOS determines how much extended memory is present during the POST.

This is the amount of memory located above 1 MB in the CPU's memory address map.

Expanded Memory

Expanded Memory in memory defined by the Lotus/Intel/Microsoft (LIM) standard as EMS. Many standard DOS applications can not utilize memory above 640 K; the Expanded Memory Specification (EMS) swaps memory, which not utilized by DOS with a section, or frame, so these applications, can access all of the system memory.

Memory can be swapped by EMS is usually 64 K within 1 MB or memory above 1 MB, depends on the chipset design.

Expanded memory device driver is required to use memory as Expanded Memory.

Other Memory

This refers to the memory located in the 640 K to 1024 K address space. This is memory that can be used for different applications.

DOS uses this area to load device drivers to keep as much

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base memory free for application programs. Most use for this area is Shadow RAM.

4.6. BIOS FEATURES SETUP

ROM PCI / ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning CPU Internal Cache External Cache Quick Power On Self Test Boot Sequence Swap Floppy Drive : Disabled Boot Up Floppy Seek Boot Up NumLock Status Typematic Rate Setting Typematic Rate (Chars/Sec) Typematic Delay (Msec) Security Option PCI/VGA Palette Snoop : Disabled OS Select For DRAM >64MB : Non-OS2

: Disabled : Enabled : Enabled : Enabled : A, C, SCSI

: Enabled : On : Disabled : 6 : 250 : Setup

Video BIOS Shadow C8000 - CBFFF Shadow CC000 - CFFFF Shadow : Disabled

ESC

: Quit

: Help

: Old Values

F7 : Load Setup Defaults

PU/PD/+/(Shift)F2

: Enabled : Disabled

: DisabledD0000 - D3FFF Shadow : DisabledD4000 - D7FFF Shadow : DisabledD8000 - DBFFF Shadow : DisabledDC000 - DFFFF Shadow

: Select Item : Modify : Color

Figure 4.3: BIOS Features Setup

• Virus Warning

This category flashes on the screen. During and after the system boots up, any attempt to write to the boot sector or partition table of the hard disk drive will halt the system and the following error message will appear, in the mean time, you can run anti-virus program to locate the problem. Default value is Disabled.

Enabled Activate automatically when the system boots up causing

a warning message to appear when anything attempts to access the boot sector or hard disk partition table

Disabled No warning message to appear when anything attempts to

access the boot sector or hard disk partition table

• CPU Internal Cache / External Cache

These two categories speed up memory access. However, it depends on CPU / chipset design. The default value is Enabled.

Enabled Enable cache

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BIOS Configuration

Disabled Disable cache

• Quick Power On Self Test

This category speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enable, BIOS will shorten or skip some check items during POST. The default value is Disabled.

Enabled Enable quick POST Disabled Normal POST

• Boot Sequence

This category determines which drive computer searches first for the disk operating system (i.e., DOS). Default value is A, C, SCSI.

X1, X2, X3 System will first search for X1 disk drive then X2 disk

drive and then X3 disk drive.

• Swap Floppy Drive

The default value is Disabled.

Enabled Floppy A & B will be swapped under DOS Disabled Floppy A & B will be normal definition

• Boot Up Floppy Seek

During POST, BIOS will determine if the floppy disk drive installed is 40 or 80 tracks. 360 K type is 40 tracks while 720 K, 1.2 M and 1.44 M are all 80 tracks. The default value is Enabled.

Enabled BIOS searches for floppy disk drive to determine if it is 40

or 80 tracks. Note that BIOS can not tell from 720 K, 1.2 M or 1.44 M drive type as they are all 80 tracks

Disabled BIOS will not search for the type of floppy disk drive by

track number. Note that there will not be any warning message if the drive installed is 360 K

• Boot Up NumLock Status

The default value is On.

On Keypad is number keys

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Off Keypad is arrow keys

• Typematic Rate Setting

The default value is Disabled.

Enabled Enable Keyboard Typematic rate setting. Disabled Disable Keyboard Typematic rate setting.

• Typematic Rate (Chars / Sec)

The default value is 6.

6-30 Set the maximum Typematic rate from 6 chars. Per

second to 30 chars. Per second.

• Typematic Delay (Msec)

The default value is 250.

250-1000 Set the time delay from first key to repeat the same key

in to computer.

• Security Option

This category allows you to limit access to the system and Setup, or just to Setup.

The default value is Setup.

System The system will not boot and access to Setup will be

denied if the correct password is not entered at the prompt

Setup The system will boot, but access to Setup will be denied if

the correct password is not entered at the prompt

To disable security, select PASSWORD SETTING at Main Menu and then you will be asked to enter password. Do not type anything and just press <Enter>, it will disable security. Once the security is disabled, the system will boot and you can enter Setup freely.

• PCI/VGA Palette Snoop

The default value are Disabled.

Enabled For having Video Card on ISA Bus and VGA Card on PCI

Bus.

Disabled For VGA Card only.

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BIOS Configuration

• OS Select For DRAM>64MB

The default value is Non-OS2.

Non-OS2 Using non-OS2 operating system. OS2 Using OS2 operating system and DRAM>64MB.

• Video BIOS Shadow

It determines whether video BIOS will copied to RAM, however, it is optional from chipset design. Video Shadow will increase the video speed.

The default value is Enable.

Enabled Video shadow is enabled Disabled Video shadow is disabled

• C8000 - CFFFF Shadow / D0000 - DFFFF Shadow

These categories determine whether optional ROM will be copied to RAM by 16 K byte.

The default value are Disabled.

Enabled Optional shadow is enabled Disabled Optional shadow is disabled

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4.7. CHIPSET FEATURES SETUP

ROM PCI / ISA BIOS

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

Auto Configuration DRAM Speed Selection : Slow DRAM Data Integrity Mode Video RAM Cacheable : Disabled Memory Hole At 15M-16M : Disabled Delayed Transaction : Disabled SDRAM RAS-to-CAS Delay SDRAM RAS Precharge Time SDRAM CAS latency Time

: Enabled

: Non-ECC

: Slow : Slow

: 3

Figure 4.4: Chipset Features Setup

• Auto Configuration

The default value is Enabled.

Enable For 50 - 60ns EDO DRAM Timing. Disable For slow speed DRAM Timing.

• DRAM speed selection

The default value is Slow.

CPU Temperature Select CPU Temperature : High Fan Failure Control : Disabled CPU Fan Status : Fail Power Supply +12V Power Supply -12V Power Supply +5V Power Supply -5V Battery Status CPU VCore Voltage

: Quit

: Help

: Old Values

F7 : Load Setup Defaults

PU/PD/+/(Shift)F2

: 75¢J/167

: OK : Fail : OK : Fail : OK : 2.8V

: Select ItemESC : Modify : Color

¢K

Slow For normal DRAM operation.

Fast For Fastest DRAM timing operation.

• DRAM Data Integrity Mode

The default value is Non-ECC.

Non-ECC For 64bit standard type DIMM module. ECC For 72bit ECC type DIMM module.

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BIOS Configuration

• Video RAM Cacheable

The default value is Disabled.

Disabled Disable this function.

Enabled Enable this function to better VGA performance; while

some brands of VGA must be disabled this function (e.g.ET4000W32P).

• Memory Hole At 15M-16M

The default value is Disabled.

Disabled Normal Setting. Enabled Set Address=15~16MB remap to ISA BUS.

• Delayed Transaction

The default value is Disabled.

Disabled Normal operation.

Enabled For slow speed ISA device in system.

• SDRAM RAS-to-CAS Delay

The default value is Slow.

Slow For 67 / 83 MHz SDRAM DIMM module.

Fast For 100 MHz SDRAM DIMM module.

• SDRAM RAS Precharge Time

The default value is Slow.

Slow For 67 / 83 MHz SDRAM DIMM module.

Fast For 100 MHz SDRAM DIMM module.

• SDRAM CAS latency Time

The default value is 3.

3 For 67 / 83 MHz SDRAM DIMM module. 2 For 100 MHz SDRAM DIMM module.

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• CPU Temperature Select

The default value is 75°C / 167°F.

75°C / 167°F Monitor CPU Temp. at 75°C, if Temp. > 75°C will

cause system alarming & slow down CPU speed.

70°C / 158°F Monitor CPU Temp. at 70°C, if Temp. > 70°C will

cause system alarming & slow down CPU speed.

Disabled Disable monitors CPU Temp. (Overheat) function.

• CPU Temperature

The default value depend on CPU TEMP. status.

High CPU overheats. (CPU Temperature is out of SPEC.)

OK CPU Temp. is in SPEC.

• Fan Failure Control

The default value is Disabled.

Disabled Disable monitor CPU FAN working status.

Enabled Enable monitor CPU FAN working if CPU FAN fail to

work, will cause system alarming & slow down CPU speed.

• CPU Fan Status

The default value depends on system monitoring CPU FAN status.

Fail The CPU FAN fails to work.

OK The CPU FAN works normally.

• Power Supply +12V

The default value depends on system monitoring +12V voltage status.

Fail The +12 voltage from POWER supply is out of SPEC.

OK The +12 voltage from POWER supply is in SPEC.

• Power Supply -12V

The default value depends on system monitoring -12V voltage status.

Fail The -12 voltage from POWER supply is out of SPEC.

OK The -12 voltage from POWER supply is in SPEC.

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