System board jumpers – Lenovo ThinkServer RD650 User Manual
Page 61
System board jumpers
The following illustration shows the jumpers on the system board of your server.
1
3
4
2
1
2
2 1
1 2
Figure 33. System board jumpers
1
BIOS default settings jumper
2
Clear password jumper
3
BIOS recovery jumper
4
Jumper cap storage
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 67.
1
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 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 69.
3. Remove the server cover. See “Removing the server cover” on page 69.
4. Locate the BIOS default settings jumper
1
on the system board. Then, remove any parts and
disconnect any cables that might impede your access to the jumper.
5. Remove the jumper cap from the jumper cap storage
4
.
6. Note the orientation of the jumper cap and then install the jumper cap on the BIOS default settings
jumper.
7. Reinstall any parts and reconnect any cables. Then, reinstall the server cover. See “Completing the
parts replacement” on page 183.
8. Connect the server to an ac power source and wait for several minutes. Then, turn on the server. The
BIOS settings turn into the factory-default settings.
9. Repeat step 1 through step 3.
10. Move the jumper cap back to the jumper cap storage
4
.
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