System-board switches and jumpers
The following illustration shows the location and description of the switches and
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.
The default positions for the UEFI and the IMM recovery jumpers are pins 1 and 2.
The following table describes the jumpers on the system board.
System x3650 M3 Types 4255, 7945, and 7949: Installation and User's Guide
UEFI boot recovery
SW4 switch block
Table 3. System board jumpers
IMM recovery jumper
SW3 switch block
v Pins 1 and 2: Normal (default) Loads the primary server
firmware ROM page.
v Pins 2 and 3: Loads the secondary (backup) server firmware