The 845D-AV MAINBOARD
Ver 3.x
Page 22
2.9.3. JP4: Clear CMOS
Type: 3 pin
Default: Pin 1 and Pin 2 short
If you have made an improper setting in the BIOS setup and your computer is
not functioning, or if you have forgotten your password, you can use this
jumper, JP4, to clear the CMOS and to reconfigure your system. page:
To clear the CMOS, please follow these instructions:
1.
Turn the system power “OFF” and unplug your computer.
2.
Insert the jumper cap on Pin 2 and Pin 3 for 3 ~ 5 seconds.
3.
Pull out the jumper cap and replace it on Pin 1 and Pin 2.
4. Turn your PC on and run the BIOS setup program.
Type: 3 pin
Default: 1 and 2 short
If you forget your keyboard power-on password you can use JP5 to clear it
from the I/O chip (where it is stored). To do this you must:
To clear the Keyboard power-on password, please follow these in-
structions:
1.
Turn the system power “OFF” and unplug your computer.
2.
Insert the jumper cap on Pin 2 and Pin 3 for 3 ~ 5 seconds.
3.
Pull out the jumper cap and replace it on Pin 1 and Pin 2.
4. Turn your PC on and run the BIOS setup program.
Type: 2 pin
Default: short
This jumper can be used to check if your AGP card is 1.5V or 3.3V. If you
short this jumper then the system will check to see what type of AGP card you
are using. If a 3.3V card is detected your system will not boot. Note: The
jumper must be made short after the AGP card has been inserted into the
slot. If this jumper remains open the system will boot with both a 1.5V and
3.3V AGP card. Note: if you are using a 3.3V AGP card you can damage your
system.
Hardware Installation
