Lenovo ThinkServer RD440 User Manual And Hardware Maintenance Manual page 69

The following illustration shows the status of the jumpers and switches on the system board of your server.
You can configure, recover, enable, or disable some specific features of the system board by setting the
jumpers and switches.
Figure 40. System board jumpers and switches
1
Clear CMOS (Complementary Metal Oxide Semiconductor) jumper
2
TMM Enable/Disable jumper (also known as BMC Enable/Disable jumper)
3
System board switches
Attention: To set the jumpers or switches, you need to remove the server cover and gain access to the
system board. Do not open your server or attempt any repair before reading and understanding "Safety
information" on page iii and "Guidelines" on page 87.
1 Clear CMOS jumper
Used to clear CMOS and turn the BIOS settings into the factory default settings.
Note: Clearing CMOS does not erase your BIOS passwords.
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.
.
Chapter 3 Product overview
57