Lenovo ThinkServer RD440 (English) User Guide and Hardware Maintenance Manual - Page 69

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 87. 4. If necessary, remove the cooling shroud. See "Removing and reinstalling the cooling shroud" on page 95. 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 199. 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 button on the front of the chassis 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 button without waiting for the TMM to be ready. Chapter 3. Product overview 57