Switch number
Description
Switch setting
Definition
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
System-board LEDs
Use this information to locate system-board LEDs in the blade server.
You must remove the blade server from the BladeCenter unit, open the cover or remove any optional
expansion units, and press the power-control button (see “Blade server controls and LEDs” on page 4) to
light any error LEDs that were turned on during processing. Diagnosing problems using the light path
diagnostic LEDs is described in “Light path diagnostics” on page 204.
The following illustration shows the LEDs on the system board.
9
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