Boot Block Write Protect Jumper; Clock Enable Jumper - Intel R440LX Product Manual

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 99.
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 chassis cover(s) 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 chassis cover(s).
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 chassis cover(s), and connect the power cord to the system.

Clock Enable Jumper

The jumper at pins 1, 2, and 3 allows you to configure the speed of the
processor.
Procedure to enable processor speed configuration:
1. See "General Procedure to Change Jumper Setting" on page 99.
2. Move the processor speed jumper from pins 1 and 2 to pins 2 and 3.
This activates the CPU Speed Setting field in the BIOS Setup Utility.
3. Reinstall the chassis cover(s) for your safety, and connect the power
cord to the system.
4. Run the BIOS Setup Utility as described in Chapter 2.
5. Select the proper speed for your processor.
6. Again remove the chassis cover(s).
7. Move the processor speed jumper from pins 2-3 back to pins 1-2.
8. Reinstall the chassis cover(s) for your safety, and connect the power
cord to the system.
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Chapter 4 - Configuring the Motherboard