Figure 13. System board switches
Table 12. System board switches
1 SW3 switch block 2 SW2 switch block
Table 13. SW2 switch block definition
Switch
number
Default
position
Description
Definition
8
Off Trusted Platform
Module (TPM) physical
presence
Changing this switch to the On position indicates a physical
presence to the TPM.
7
Off
ME recovery
Changing this switch to the On position boots ME to recovery
6
On Low security Keeping this switch in the On position allows transitioning
between signed official IMM builds and IMM test signed builds,
and bypasses CRTM boot check of iMM firmware.
5
Off Real time clock (RTC)
reset
Changing this switch to the On position resets the RTC. A
momentary toggle is all that is required. To avoid excessive
CMOS battery drain, do not leave this switch in the On position.
4
Off
Password override
Changing this switch to the On position overrides the power-on
password.
3
Off Serial function selection Off: function as system serial port.
On: dump UEFI debug message to serial port.
2
Off BMC Remote debug Keeping this switch in the off position enables BMC remote
debug.
1
Off
ME security override
Changing this switch to the On position disables ME Security
checks.
Chapter 2. Server components 37
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