Boot Block Write Protect Jumper - Intel N440BX Product Manual

3. Reinstall the side cover for your safety, connect the power cord to the system.
4. Turn the system on, and insert the Flash Memory Update Utility diskette in drive A. After the
system boots, the speaker emits a single beep and the recovery process starts. This takes about
three minutes. When the recovery process completes, the speaker emits two beeps.
While in the recovery mode, there is no screen display on the monitor. The keyboard is disabled as
the system automatically recovers the BIOS. The following beep codes describe the recovery
status.
Beep Code
2
4
Continuous series of low beeps
5. Turn the system off, disconnect the power cord(s) from the system, and remove the left side
cover.
6. Move the jumper from pins 9 and 10 to pins 10 and 11 to enable the normal boot mode.
7. Replace the left side cover, remove the diskette from drive A, and connect the power cord(s) to
the system.
8. After running the special recovery mode, run the SSU to specify a new password. See
Chapter 3.

Boot Block Write Protect Jumper

The jumper at pins 13, 14, and 15 controls whether the BIOS boot block is protected from being
erased and reprogrammed.
CAUTION
Leave boot block jumper at factory-default setting: Programming the
boot block incorrectly will prevent the system from booting. Programming
should only be done by a technically qualified person. The procedure
requires a special "Boot Block Update Utility." Contact your dealer or sales
representative for more information.
Procedure to permit boot block erasing and programming:
1. See "General Procedure to Change Jumper Setting" on page 109.
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.
Message
Successful completion, no errors.
The system could not boot from the diskette. The diskette may not be
bootable.
The wrong BIOS recovery files are being used and/or the flash memory
jumper is in the wrong position.
111