Intel SC450NX - Server Platform - 0 MB RAM, Руководство по эксплуатации продукта

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152
General Procedure to Change Jumper Setting
The short general procedure for changing a configuration setting is the same for most of the
jumper functions, so we will describe it here.
1. Observe the safety and ESD precautions at the beginning of Chapter 5 (page 87).
2. Turn off all connected peripherals, turn off system power, and disconnect all AC power cords.
3. Remove the access cover. You do not need to remove the baseboard from the chassis, and you
probably do not need to remove any add-in boards.
4. Locate the configuration jumpers at the edge of the baseboard toward the front of the system,
near the narrow SCSI connector.
5. Move jumper to pins specified for the desired setting.
6. Reinstall the access cover using the original screws, connect the power cords, and turn on the
system for the change to take effect.
7. You may need to repeat these steps to move the jumper back to its original setting, depending
on the jumper function.
CMOS Clear 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 152.
2. Move the CMOS jumper from pins 1 and 2 to pins 2 and 3 (the Clear CMOS memory
position).
3. Reinstall the access cover for your safety (using the original screws), and connect the
power cords 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, except for the password.
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 all AC power cords from the system.
7. Again remove the access cover.
8. Move the jumper from pins 2 and 3 back to pins 1 and 2 (the Protect CMOS memory
position).
9. Reinstall the access cover using the original screws, and connect the power cords to the
system.
10. Run BIOS Setup or the SSU to verify the correct settings. See Chapter 3.