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L440GX+ Server Board Product Guide 103
Procedure to permit boot block erasing and programming:
1. See “General Procedure to Change Jumper Setting” on page 100.
2. Move the boot block jumper from pins 13 and 14 to pins 14 and 15 to erase and program the
BIOS boot block.
3. Reinstall the side cover for your safety, and connect the power cord to the system.
4. Run the Boot Block Update Utility.
5. Turn off the system, and disconnect the power cord from the system.
6. Remove the side cover.
7. Move the jumper from pins 14 and 15 back to pins 13 and 14 to write protect the BIOS boot
block.
8. Reinstall the side cover, and connect the power cord to the system.
FRB Timer Enable Jumper
The jumper at pins 5, 6, and 7 controls the FRB timers. See page 85.
Procedure to disable FRB timer:
1. See “General Procedure to Change Jumper Setting” on page 100.
2. Move the recovery boot jumper from pins 5 and 6 to pins 6 and 7.
3. Reinstall the side cover for your safety, and connect the power cord to the system.
4. Turn the system on, and wait for POST to complete.
5. Run the SSU to configure the system. See Chapter 3.
Chassis Intrusion Detection Jumper
The chassis contains an alarm switch that sends a notification signal to the server management
software if a cover is removed. The jumper at pins 9, 10, and 11 controls whether this alarm feature
is enabled or disabled.
Procedure to disable (bypass) the chassis intrusion switch:
1. See “General Procedure to Change Jumper Setting” on page 100.
2. Move the chassis intrusion detection jumper from pins 9 and 10 to pins 10 and 11 to disable the
alarm switch.
3. Reinstall the side cover for your safety, and connect the power cord to the system.
4. Turn the system on, and wait for POST to complete.
5. Run the SSU to configure the system. See Chapter 3.
To enable the intrusion switch, do the above steps but move the jumper back to pins 9 and 10.