System board jumpers
The following illustration shows the jumpers on the system board of your server.
Figure 28. System board jumpers
1
Jumper cap storage
2
BIOS recovery jumper
3
BIOS default settings jumper
4
Clear password jumper
Attention:
To set the jumpers, remove the server cover and gain access to the system board first. Do not
open your server or attempt any repair before reading and understanding “Safety information” on page iii
and “Guidelines” on page 63.
1
Jumper cap storage
Used to store the jumper cap. A jumper cap is encased on the pins by default.
2
BIOS recovery jumper
Used to recover the BIOS if the power to your server is interrupted while the BIOS is being updated and your
server cannot start correctly.
To recover the BIOS, see “Recovering from a BIOS update failure” on page 57.
3
BIOS default settings jumper
Used to turn the BIOS settings into the factory-default settings.
To turn the BIOS settings into the factory-default settings, do the following:
1. Remove all external media from the drives and turn off all attached devices and the server. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the server.
2. Prepare your server. See “Removing or extending the server from the rack cabinet” on page 65.
44
ThinkServer RD450 User Guide and Hardware Maintenance Manual
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