System-board switches and jumpers

The following illustration shows the location and description of the switches, jumpers, and buttons.

Important

1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect external cables. Review the information in Safety, Installation guidelines, and Turning off the server.
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
3. 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

The following table describes the jumpers on the system board.

Table 1. Jumper definition.

The jumper description table with one level of row and column headers.

Jumper name	Description
Clear CMOS jumper	Pins 1 and 2: Keep CMOS data (default) Pins 2 and 3: Clear CMOS data
SATADOM power jumper (JP136)	Pins 1 and 2: No SATADOM installed (default) Pins 2 and 3: SATADOM installed Warning Warning: Do not surround Pin 3 and 4 with SATADOM power jumper.

The following table describes the functions of the SW1 switch block on the system board.

Table 2. System board SW1 switch block definition.

The switch description table with one level of row and column headers.

Switch number	Default position	Description
1	Off	BIOS recovery.
2	Off	ME recovery.
3	Off	Default off.
4	Off	Password clear.