Lenovo ThinkServer TS430 Hardware Maintenance Manual page 63

3. Lay the server on its side for easier operation.
4. Locate the Clear CMOS /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. Wait more than 10 seconds and then move the Clear CMOS /Recovery jumper back to the normal
position (pin 1 and pin 2).
6. Reinstall the server cover and connect the power cord(s). See "Completing the parts replacement" on
page 177.
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 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.
3 BIOS recovery jumper
Set the jumper and boot the server from a BIOS recovery image in order to recover your BIOS settings.
To recover the BIOS, see "Recovering from a BIOS update failure" on page 70.
4 Clear password jumper
Used to erase forgotten passwords, such as an administrator password and a user password.
To clear passwords, 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 87.
3. Lay the server on its side for easier operation.
4. Locate the Clear password 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 10 seconds and then move the Clear password jumper back to the normal position
(pin 1 and pin 2).
6. Reinstall the server cover and connect the power cord(s). See "Completing the parts replacement" on
page 177.
7. Wait about 30 seconds. Then, turn on the server. The BIOS passwords are erased, including the
administrator password and user password.
8. To set new passwords, see "Using passwords" on page 67.
5 Manufacturing jumper
Reserved for the manufacturer.
.
Chapter 3 Product overview
51