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GA-686LX3
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Gigabyte GA-686LX3 Manual

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BIOS Configuration
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 battery­backed CMOS SRAM so that it retains the Setup information when the power is turned off.
4.1. ENTERING SETUP
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 Reserved 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
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F10 key Save all the CMOS changes, only for Main Menu
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 nine setup functions and two exit choices. Use arrow keys to select among the items and
press <Enter> to accept or enter the sub-menu.
Figure 4.1: Main Menu
• Standard CMOS setup
This setup page includes all the items in standard compatible BIOS.
• BIOS features setup
This setup page includes all the items of Award special enhanced
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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.
• Load BIOS defaults
BIOS Defaults indicates the most appropriate value of the system parameters that the system would be in safe configuration.
• Load Setup defaults
Setup Defaults indicates the most appropriate value of the system parameters which the system would be in safe configuration.
• Integrated peripherals
This setup page includes all onboard peripherals.
• Supervisor password
Change, set, or disable password. It allows you to limit access to the system and Setup, or just to Setup.
• 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 parameters.
• Save & exit setup
Save CMOS value settings to CMOS and exit setup.
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• Exit without saving
Abandon all CMOS value changes and exit setup.
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.
Figure 4.2: Standard CMOS Setup Menu
• Date
The date format is <day>, <month> <date> <year>.
day The day, from Sun to Sat, determined by the BIOS and is
display-only month The month, Jan. through Dec. date The date, from 1 to 31 (or the maximum allowed in the month) 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 from drive C to F that has been installed in the computer. There are two types: auto type, and user
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definable type. User type is user-definable; Auto type which will automatically detect HDD type.
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 you select User Type, related information will be asked to enter to the following items. Enter the information directly from the keyboard and press <Enter>. Such 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).
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)
Disabled 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 are 3 mode Floppy Drives.
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• Video
The category detects the type of adapter used for the primary system monitor that must match 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 stop 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
All, But Disk/Key The system boot will not stop for a keyboard or disk
error; it will stop for all other errors
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• 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 base memory free for application programs. Most use for this area is
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Shadow RAM.
4.6. BIOS FEATURES SETUP
Figure 4.3: BIOS Features Setup
• Virus Warning
If it is set to enable, the category will flash on the screen when there is any attempt to write to the boot sector or partition table of the hard disk drive. The system will halt 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
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• 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 Disabled Disable cache
• CPU L2 Cache ECC Checking
The default value is Disabled.
Enabled Enable CPU L2 Cache ECC Checking Disabled Disable CPU L2 Cache ECC Checking
• 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 Enabled.
Enabled Enable quick POST Disabled Normal POST
• CPU Update Data
The default value is Enabled.
Enabled Enable CPU Update Data Disabled Normal CPU Update Data
• Boot From LAN First
The default value is Enabled.
Enabled Enable Boot From LAN First Function Disabled Disable Boot From LAN First Function
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• 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
• VGA Boot From
The default value is AGP
AGP System will boot from AGP Display Card PCI System will boot from PCI VGA Card
• Boot Up Floppy Seek
During POST, BIOS will determine the floppy disk drive installed is 40 or 80 tracks. 360 K type is 40 tracks 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 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 Off Keypad is arrow keys
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• 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 characters. 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 can not boot and can not access to Setup page
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
M
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 page freely.
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