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System-board-assembly switches

The following illustrations show the location of the switches on the server.

Note
If there is a clear protective sticker on the top of the switch blocks, you must remove and discard it to access the switches.
Important

  1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all power cords and external cables. Review the following information:

  2. Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
Figure 1. System-board-assembly switches
System-board switches

1 Switch 2 (SW2)2 Switch 7 (SW7)3 Switch 6 (SW6)

SW2 switch block​

The following table describes the functions of the SW2 switch block on the system board assembly.
Table 1. SW2 switch block description
Switch-bit numberSwitch nameDefault positionDescription
1 SW2–1

FPGA reset

OFF

Forces FPGA into reset when switched to ON.

2 SW2–2

Force BMC CPU reset

OFF

Forces BMC and CPU into reset when switched to ON.

3 SW2–3ReservedOFFReserved
4 SW2–4

BIOS image swap

OFF

Enables BIOS image swap when switched to ON.

SW7 switch block​

The following table describes the functions of the SW7 switch block on the system board assembly.
Table 2. SW7 switch block description
Switch-bit numberSwitch nameDefault positionDescription
1 SW7–1XCC boot primaryOFF

XCC boots from upper half of flash region when switched to ON.

2 SW7–2XCC force updateOFF

XCC boots from kernel code only when switched to ON.

3 SW7–3Power permission overrideOFF

Ignores Power Permission and allows system to power-on when switched to ON.

4 SW7–4Force XCC resetOFF

Forces XCC into reset when switched to ON.

5 SW7–5ReservedOFFReserved
6 SW7–6ReservedOFFReserved
7 SW7–7ReservedOFFReserved
8 SW7–8ReservedOFFReserved

SW6 switch block​

The following table describes the functions of the SW6 switch block on the system board assembly.
Table 3. SW6 switch block description
Switch-bit numberSwitch nameDefault positionDescription
1 SW6–1ME security overrideOFF

Disables ME Security checks when switched to ON.

2 SW6–2Clear CMOSOFF

Clears the real-time clock (RTC) registry when switched to ON.

3 SW6–3Password overrideOFF

Overrides the power-on password when switched to ON.

4 SW6–4ME recoveryOFF

Boots ME into recovery mode when switched to ON.

5 SW6–5BIOS recoveryOFF

Boots BIOS into recovery mode when switched to ON.

6 SW6–6ReservedOFFReserved
7 SW6–7ReservedOFFReserved
8 SW6–8ReservedOFFReserved