System-board switch

Use this information to locate and define system-board switch in the blade server.

The following illustration shows the location of the system-board switch.

The following table describes the function of each switch in the switch block.

Switch number	Description	Switch setting	Definition
SW1 - 1	Password override switch	Changing position of this switch resets the power on password.	This switch overrides the power on password. The system ships with this switch off, but it can be on or off in a functioning system.
SW1 - 2	Host Trusted Platform Module (TPM) physical presence	The default position is off.	Turning this switch to the on position indicates a physical presence to the host TPM.
SW1 - 3	Real Time Clock (RTC) reset	Normally open. Toggle to reset RTC.	Resets the RTC. A momentary toggle is all that is required. To avoid excessive battery drain, do not leave this switch closed.
SW1 - 4	Boot using the backup IMM2 code	The default position is off, allowing the blade server to boot from the primary IMM2 firmware.	When the switch is in the default off position, the blade server will boot using the primary IMM2 firmware. When the switch is on, the blade server will boot using a backup of the IMM2 firmware.
SW1 - 5	Boot block recovery	The default position is off, allowing the blade server to boot from the primary UEFI firmware.	When the switch is on, it allows the blade server to boot using the backup UEFI.
SW1 - 6	IMM2 recovery mode	The default position is off.	When the switch in on, it allows the blade server to boot without permission from the AMM.
SW1 - 7	IMM2 Trusted Platform Module (TPM) physical presence	The default position is off.	Turning this switch to the on position indicates a physical presence to the IMM2.
SW1 - 8	Force H8 update	The default position is off.	N/A