Lenovo ThinkServer TD330 Manual page 62

2 Clear CMOS (Complementary Metal Oxide Semiconductor) jumper
Use this jumper to clear CMOS and recover your server to the factory default settings.
Note: After clearing CMOS, all your BIOS passwords are erased and the BIOS recovers to the factory
default settings.
To clear CMOS, 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. Remove the server cover. See "Removing the server cover" on page 77.
3. Lay the server on its side for easier operation.
4. Locate the Clear CMOS jumper on the system board, and then move the jumper from the default normal
position (pin 1 and pin 2) to the short-circuited position (pin 2 and pin 3).
5. Wait more than five seconds, and then move the Clear CMOS jumper back to the normal position
(pin 1 and pin 2).
6. Reinstall the server cover and connect the power cords. See "Completing the parts replacement" on
page 178.
7. Wait about 30 seconds. Then, turn on the server. The BIOS passwords are erased and the BIOS
recovers to the factory default settings.
2 Management Engine (ME) recovery jumper
Use this jumper to recover the ME.
To recover the ME, 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. Remove the server cover. See "Removing the server cover" on page 77.
3. Lay the server on its side for easier operation.
4. Locate the ME recovery jumper on the system board, and then move the jumper from the default normal
position (pin 1 and pin 2) to the short-circuited position (pin 2 and pin 3).
5. Reinstall the server cover and connect the power cords. See "Completing the parts replacement" on
page 178.
6. Connect the server to an ac power source. Then, turn on the server to recover the ME.
7. Turn off the server when the recovery completes, and then repeat step 1 through step 3.
8. Locate the ME recovery jumper on the system board, and then move the ME recovery jumper back to
the normal position (pin 1 and pin 2).
9. Repeat step 5.
10. Wait about 30 seconds. Then, turn on the server. The ME has been recovered.
4 BIOS recovery jumper
Set the jumper and boot the server from a BIOS recovery image to recover your BIOS settings.
To recover the BIOS, see "Recovering from a BIOS update failure" on page 60.
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ThinkServer TD330 Hardware Maintenance Manual