Table 11. Server Board Jumper Summary (continued)
Jumper Block | Jumper Name | Pins (default in bold) | What it does at system reset |
|
|
|
|
J2J1 | CMOS CLR | Preserves the contents of NVRAM. | |
|
| Replaces the contents of NVRAM with the | |
|
|
| manufacturing default settings. |
|
|
|
|
J2J1 | PSWD CLR | Maintains the current system password. | |
|
| Clears the password. | |
|
| ||
|
|
|
|
J2J1 | RCVRY BOOT | System attempts to boot using the BIOS | |
|
|
| stored in flash memory. |
|
| BIOS attempts a recovery boot, loading | |
|
| ||
|
|
| BIOS code from a floppy diskette into the |
|
|
| flash device. This is typically used when the |
|
|
| BIOS code has been corrupted. |
|
|
|
|
J2J1 | BIOS WR EN | BIOS boot block is | |
|
| BIOS boot block is erasable and | |
|
| ||
|
|
| programmable. |
|
|
|
|
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 this chapter.
2.Turn off all connected peripherals, turn off system power, and disconnect the AC power cord.
3.Remove the side cover. You do not need to remove the server board from the chassis, and you probably do not need to remove any
4.Locate the configuration jumpers at the edge of the server board toward the front of the system.
5.Move jumper to pins specified for the desired setting.
6.Reinstall the side cover, connect the power cord, 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.
100 | Technical Reference |