System-board switches

This section contains information on the location of the switches, jumpers, and buttons on the server.

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 following information:
Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.

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.

Figure 1. System-board switches

1 SW5 2 SW13

SW5 switch block

Table 1. SW5 switch block definition
Switch number	Switch name	Usage description
Switch number	Switch name	On	Off
1	Force BMC reset	Forces hot reset BMC chip	Normal (default)
2	Force BMC CPU reset	Forces warm XCC and CPU rest	Normal (default)
3	ME security override	Enables ME low security mode	Normal (default)
4	Password clear	Forces reset uEFI password	Normal (default)
5	Low security	Enables XCC low security mode	Normal (default)
6	ME recovery	Forces ME into recovery mode	Normal (default)
7	BMC force update	Forces XCC boot	Normal (default)
8	FPGA power permission override	Ignores Power Permission and allows system to power on	Normal (default)

Table 2. SW13 switch block definition
Switch number	Switch name	Usage description
Switch number	Switch name	On	Off
1	(Reserved)	(Reserved)	Normal (default)
2	Debug Atscale	Forces to enable the Atscale feature	Normal (default)
3	RTS (Real time clock) reset	Clears CMOS data	Normal (default)
4	FPGA MFG mode	Enables FPGA MFG mode	Normal (default)
5	Serial select	Normal (default) Sends uEFI debug message to serial port	Sends the XCC to serial port
6	(Reserved)	(Reserved)	Normal (default)
7	Bypass PFR	Enables bypass PFR	Normal (default)
8	BMC Trusted Platform Module (TPM) physical presence	Asserts TPM physical presence	Normal (default)

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