System-board-assembly switches
The following illustrations show the location of the switches on the server.
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.

SW7 switch block (left)
Switch-bit number | Switch name | Default position | Description |
---|---|---|---|
1 SW7–1 | XCC boot primary | Off | XCC boots from upper half of flash region when switched to ON. |
2 SW7–2 | XCC force update | Off | XCC boots from kernel code only when switched to ON. |
3 SW7–3 | Power permission override | Off | Ignores Power Permission and allows system to power-on when switched to ON. |
4 SW7–4 | Force XCC reset | Off | Forces XCC into reset when switched to ON. |
5 SW7–5 | Reserved | Off | Reserved |
6 SW7–6 | Reserved | Off | Reserved |
7 SW7–7 | Reserved | Off | Reserved |
8 SW7–8 | Reserved | Off | Reserved |
SW6 switch block (right)
Switch-bit number | Switch name | Default position | Description |
---|---|---|---|
1 SW6–1 | ME security override | Off | Disables ME Security checks when switched to ON. |
2 SW6–2 | Clear CMOS | Off | Clears the real-time clock (RTC) registry when switched to ON. |
3 SW6–3 | Password override | Off | Overrides the power-on password when switched to ON. |
4 SW6–4 | ME recovery | Off | Boots ME into recovery mode when switched to ON. |
5 SW6–5 | BIOS recovery | Off | Boots BIOS into recovery mode when switched to ON. |
6 SW6–6 | MFG mode | Off | Enables MFG mode of firmware (UEFI/XCC/FPGA) when switched to ON. |
7 SW6–7 | At-Scale debug | Off | Enables BMC At-Scale debug when switched to ON. |
8 SW6–8 | Low security | Off | Allows transitioning between signed official XCC builds and XCC test signed builds, and bypasses CRTM boot check of XCC firmware when switched to ON. |