Lenovo ThinkServer RD630 Hardware Maintenance Manual page 62

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. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server.
3. Remove the server cover. See "Removing the server cover" on page 73.
4. If necessary, remove the cooling shroud. See "Removing and reinstalling the cooling shroud" on page
78.
5. Locate the Clear CMOS jumper on the system board. Then, remove any parts and disconnect any
cables that might impede your access to the jumper.
6. Move the Clear CMOS jumper from the default normal position (pin 1 and pin 2) to the short-circuited
position (pin 2 and pin 3).
7. Wait more than 10 seconds and then move the Clear CMOS jumper back to the normal position (pin 1
and pin 2).
8. Reinstall any parts and reconnect any cables. Then, reinstall the server cover. See "Completing the
parts replacement" on page 163.
9. Connect the server to an ac power source and wait about 30 seconds. Then, turn on the server. The
BIOS settings turn to the factory default settings.
2 TMM Enable/Disable jumper (also known as BMC Enable/Disable jumper)
When the TMM Enable/Disable jumper is in the default normal position (pin 1 and pin 2), the server needs
about 30 seconds for the TMM to initialize whenever you connect the server to an ac power source. If you
press the power switch on the front panel during this period, the server will not start immediately; it will
start after the TMM initialization finishes.
If you move the TMM Enable/Disable jumper to pin 2 and pin 3, the TMM function is not available and the
server will be directly turned on when you press the power switch without waiting for the TMM to be ready.
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ThinkServer RD630 Hardware Maintenance Manual