General Procedure To Change A Jumper Setting; Table 4-19 Baseboard Jumper Summary - Silicon Graphics 1400 Server Family Maintenance And Upgrade Manual

Chapter 4: Technical Reference
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Table 4-19 Baseboard Jumper Summary
Function Pins (default in bold)
CMOS clear 1-2, BMC Control
2-3, Force Erase
Password clear
5-6, Protect
6-7, Erase
Recovery Boot 9-10, Normal
10-11, Recovery

General Procedure to Change a Jumper Setting

The short general procedure for changing a configuration setting is the same for most of
the jumper functions, and is described in the following steps.
1. Read and observe the safety and ESD precautions at the beginning of Chapter 1.
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.
What it does at system reset
Preserves the contents of NVRAM.
Replaces the contents of NVRAM with the
manufacturing default settings.
Maintains the current system password.
Clears the password.
System attempts to boot using the BIOS stored in
flash memory.
BIOS attempts a recovery boot, loading BIOS code
from a diskette into the flash device. This is
typically used when the BIOS code has been
corrupted.