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HP and Compaq Desktop PCs - BIOS Settings for the Ahi Motherboard

Using the BIOS setup utility

The Basic Input Output System (BIOS) is responsible for enabling the hardware system on your computer when the computer is turned on. The BIOS Setup Utility makes it possible to change and store system configuration settings such as: enabling and disabling onboard components, setting the boot sequence for the system, and adjusting power management support.

To open the BIOS Setup utility, turn on the computer and immediately press the F10 key repeatedly, about once every second, until the BIOS setup utility screen opens.

Choose menu screens by pressing the left or right arrow keys. Use the up or down arrow keys to move up or down through the list of items on a menu screen. Press the Enter key to select an item. For certain items, pressing the Enter key opens a submenu. After you have selected a menu item, use the arrow keys to modify the settings. Press the Esc key to exit from a submenu. Help is shown on the right side of the screen.

CAUTION: Information stored by the Setup program is essential and changing certain settings can render your system unusable (until the BIOS is reset). BIOS settings should not be changed unless you are certain the change does not negatively impact the system.

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Main menu settings

Figure 1: Main menu screen

 Main menu screen showing first page of settings

The following table shows the values and settings for the Main screen menu:

NOTE: Device names and their settings shown in the table may vary.
Main menu
Settings or displayed information
System Date
Displays current date in Ddd, MM/DD/YYYY format
System Time
Displays Current time in HH:MM:SS format.
Language
* This sets the language used by the BIOS Setup Utility only, not Windows.
English (US)
Français
Español
Floppy Diskette A
Not Installed
Disabled
720KB 3.5"
1.44MB 3.5"
2.88MB 3.5"
First Channel Device 0, Device 1, etc...
If a drive is installed and recognized, the name of the drive displays. Otherwise, None is shown.
Click the name of a drive, to open the drive submenu (see Drive Settings table ).
Installed Memory
Displays the total amount of RAM that the system is able to recognize.
Memory Bank 1, 2, etc...
Displays the amount of RAM installed in the corresponding DIM socket.
BIOS Core Version
Displays BIOS Core version number.
BIOS Revision
Displays the current BIOS revision number and date the BIOS was revised.
Drive Settings submenu (from main menu)
Settings
IDE HDD Auto-Detection
Press Enter to automatically detect the hard drive size, head, etc.
IDE Channel 0 Master
None
Auto
Manual
Access Mode
CHS
LBA
Large
Auto
Cylinder
Displays drive cylinder.
Head
Displays drive head.
Precomp
Displays drive precomp.
Landing Zone
Displays drive landing zone.
Sector
Displays drive sector.
SMART Support
Not Supported.

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Advanced menu settings

Figure 2: Advanced menu screen

 Advanced menu screen showing first page of settings

The following table shows the values and settings for the Advanced screen menu:

NOTE: Device names and their settings shown in the table may vary.
Advanced menu
Settings or displayed information
CPU Type
Displays the name and type of processor.
CPU Speed
Displays the speed of the processor.
CPU Cache RAM
Displays the amount of cache memory.
Plug and Play OS
No
Yes
Reset Configuration Data
Disabled
Enabled
Primary Video Adapter
PCI
PCIEx
PS/2 Mouse
Disabled
Enabled
Auto Detect
Local Bus IDE Adapter
Disabled
Primary
Secondary
Both
Onboard SATA-1 Adapter
Disabled
Enabled
Onboard SATA-2 Adapter
Disabled
Enabled
USB Legacy Mode Support
Disabled
Enabled
Auto
Onboard LAN
Disabled
Enabled
Onboard 1394
Disabled
Enabled
Onboard Audio
Auto
Disabled (use this setting if an audio card is installed)
Enabled
Supervisor Password
Disabled
Enabled
* To change this setting, see Change Supervisor Password.
User Password
Disabled
Enabled
* To change this setting, see Change User Password.
Change Supervisor Password
Select to enter a password.
* Entering a password enables the Supervisor password and allows you to set a User password. Pressing Enter with no password disables the Supervisor password.
Change User Password
Select to enter a password.
* This setting displays only after the Supervisor password has been set. Entering a password forces everyone to enter this password when they try to open the BIOS setup utility in the future. Entering no password disables the user password and allows anyone to enter the BIOS without a password.
I/O Device Configuration
Click to open the I/O device submenu (see I/O Device Configuration table ).
Onboard Audio
Enabled
Disabled
Auto
Hardware Monitor
Click to open the hardware monitor submenu (see Hardware Monitor table ).
I/O Device Configuration submenu (from advanced menu)
Settings
Onboard Parallel Port
Disabled
378/IRQ7
178/IRQ5
3BC/IRQ7
Parallel Port Mode
SPP
EPP1.9+SPP
ECP
EPP1.9+ECP
PRINTER
EPP1.7+SPP
EPP1.7+ECP
ECP Mode Use DMA
1
3
Hardware Monitor submenu (from advanced menu)
Settings
Fan Control
Disabled
Enabled
Fan High Temp
Default is 65. Enter a temperature between 30 and 89.
Fan Med Temp
Default is 60. Enter a temperature between 30 and 89.
Fan Low Temp
Default is 55. Enter a temperature between 30 and 89.
CFan High Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.
CFan Med Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.
CFan Low Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.
SFan High Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.
SFan Med Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.
SFan Low Volt. (00-3fh)
Enter a hexidecimal number between 0000 and 003F.

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Power menu settings

Figure 3: Power menu screen

 Power menu screen showing first page of settings

The following table shows the values and settings for the Power screen menu:

NOTE: Settings shown may vary.
Power menu
Settings or displayed information
After AC Power Failure
Power On
Stay Off
Auto
RTC Alarm Resume
Disabled
Enabled
Date (of Month)
Enter a number between 0 and 31.
Resume Time (hh:mm:ss)
Enter a number between 0 and 23.

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Boot menu settings

Figure 4: Boot menu screen

 Boot menu screen showing first page of settings

The following table shows the values and settings for the Boot screen menu:

NOTE: Settings shown may vary.
Boot menu
Settings or displayed information
Boot-time Diagnostic Screen
Enabled
Disabled
* Enabling this function replaces the HP or Compaq logo screen with a boot screen that quickly displays startup status messages.
Boot Device Priority:
1st Boot Device
2nd Boot Device
3rd Boot Device
4th Boot Device
Selecting Boot Device Priority opens a submenu to select the order of the types of bootable devices checked by the system. That is, if the CD-ROM group is selected as the 1st Boot Device, then the system will check the CD/DVD drive first to see if it contains any bootable discs.
A device group will display Not Installed if there are no devices of that group installed in the system. If a device is available, you can enable or disable the group. Device groups are:
  • Floppy Group

  • CD-ROM Group

  • HDD Group

  • Network Group

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Exit menu settings

Figure 5: Exit menu screen

 Exit menu screen

The following table shows the values and settings for the Exit screen menu:

NOTE: Settings shown my vary.
Exit menu selections
Function
Exit Saving Changes
Saves all changes made in the other screens and exits the BIOS setup utility.
Exit Discarding Changes
Exits without making any changes to the BIOS.
Load Setup Defaults
Restores any changes that were made to the original default values.
Discard Changes
Removes any changes that were made to the BIOS for this session. The BIOS Setup Utility remains open.
Save Changes
Saves any changes that were made to the BIOS for this session. The BIOS Setup Utility remains open.

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