System-board switches and jumpers
The following illustration shows the location and description of the switches, jumpers, and buttons.
Important
- Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all power cords and external cables. Review the information in Safety, Installation guidelines, and Turning off the server.
- Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
- If there is a clear protective sticker on the switch blocks, you must remove and discard it to access the switches.
Figure 1. Location of the switches, jumpers, and buttons on the system board
![Location of the switches, jumpers, and buttons on the system board](m5dwc005.jpg)
![Location of the switches, jumpers, and buttons on the system board](m5dwc005.jpg)
The following table describes the jumpers on the system board.
Jumper name | Description |
---|---|
Clear CMOS jumper |
|
UEFI boot backup jumper |
|
Note
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