Setting the system board jumpers

The J1F2 configuration jumper on the system board lets you clear passwords and recover the BIOS. (See the figure on page 6 for the location of the jumper.) The table below shows the settings required to perform those tasks. Make sure you turn off the computer and unplug the power cord before moving the jumper.

Caution Moving the jumper while the computer’s power is on can damage your computer. Always turn off the computer and unplug the power cord from the computer before changing the jumper.

J1F2 Mode

Jumper

Action When Set

 

Setting

 

 

 

 

 

 

 

 

 

 

Normal

 

 

 

 

 

 

 

Normal operation

 

 

 

 

 

 

 

 

 

 

Pins 1-2

 

 

 

 

 

 

 

 

 

 

Configure

 

 

 

 

 

 

 

Adds a Maintenance menu to

 

 

 

 

 

 

 

 

BIOS Setup utility with options to

 

Pins 2-3

 

clear passwords

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Recovery

 

 

 

 

 

 

 

Causes computer to attempt

 

 

 

 

 

 

 

 

BIOS update or recovery from

 

No jumper

 

diskette

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIOS recovery mode

If you are trying to update the BIOS and have a problem such as a power outage, the update may not be successful. You can then try to recover the BIOS by setting the J1F2 jumper.

When you are trying to recover the BIOS, no image appears on your monitor.

To recover the BIOS:

1Turn off the system and disconnect the power cord, modem cord (if installed), and all external peripheral devices.

2Open the case by following the instructions on page 17. (See “Preventing static electricity” on page 15.)

70Using the BIOS Configuration Manager