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CMOS Jumper
The jumper at pins 1, 2, and 3 controls whether settings stored in CMOS nonvolatile memory
(NVRAM) are retained during a system reset.
Procedure to restore the system's CMOS and RTC to default values:
1. See "General Procedure to Change Jumper Setting" on page 109.
2. Move the CMOS jumper from pins 1 and 2 to pins 2 and 3 (the Clear CMOS memory
position).
3. Reinstall the side cover for your safety, and connect the power cord to the system.
4. Turn the system on. Wait for POST to complete and for the messages "NVRAM cleared by
jumper" and "Press F2 to enter Setup" to appear. This automatically reprograms CMOS and
RTC to their default settings.
5. Enter Setup and make any changes necessary (for example, changing the boot device). Press
F10 to save the new Setup configuration and exit Setup.
6. Turn off the system, and disconnect the power cord from the system.
7. Again remove the side cover.
8. Move the jumper from pins 2 and 3 back to pins 1 and 2 (the Protect CMOS memory position).
9. Reinstall the side cover, and connect the power cord to the system.
10. Run BIOS Setup or the SSU to verify the correct settings. See Chapter 3.
Password Jumper
The jumper at pins 5, 6, and 7 controls whether the user and administrative passwords are retained
or cleared during a system reset.
Procedure to clear the current password and then enter a new one:
1. See "General Procedure to Change Jumper Setting" on page 109.
2. Move the Password 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. This automatically clears the password.
5. Turn off the system, and disconnect the power cord.
6. Again remove the side cover.
7. Move the jumper from pins 6 and 7 back to pins 5 and 6.
8. Reinstall the side cover, and connect the power cord to the system.
9. Run the SSU to specify a new password. See Chapter 3.
Recovery Boot Jumper
The jumper at pins 9, 10, and 11 controls whether the system attempts to boot using the BIOS
programmed in the boot block area of the FLASH memory. This should only be used if the
operational area of the BIOS is corrupted or needs to be upgraded. Contact your local service
representative before doing this.
Procedure to disable recovery booting:
1. See "General Procedure to Change Jumper Setting" on page 109.
2. Move the recovery boot jumper from pins 9 and 10 to pins 10 and 11.
110
Technical Reference
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