Lenovo ThinkServer RD540 70AR, User Manual And Hardware Maintenance Manual

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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 or moving the switches.
Figure 31. System board jumpers and switches
Table 1. System jumpers
1
Clear CMOS (Complementary Metal Oxide Semiconductor) jumper
3
Switches
2
ThinkServer Management Module Enable/Disable jumper
Attention: To set the jumpers or move switches, you need to remove the server cover to access 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 67.
1 Clear CMOS jumper
Used to clear CMOS and recover your server to the factory default settings.
Note: After clearing CMOS, your BIOS recovers to the factory default settings.
Chapter 3
.
Product overview
43