IBM System x3690 X5 - System-Board Switches and Jumpers

System-board switches and jumpers
The following illustration shows the location and description of the switches and
jumpers.
Note: If there is a clear protective sticker on the top of the switch block, you must
remove and discard it to access the switch.
The following table describes the jumper on the system board.
Table 3. System board jumper
Jumper number Jumper name Jumper setting
J59 UEFI boot recovery jumper
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 ROM page.
38 System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide