System-Board Switches And Jumpers - IBM System x3690 X5 Installation And User Manual

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.
38
System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide
Table 3. System board jumper
Jumper number
J59
Jumper name
UEFI boot recovery jumper
Jumper setting
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.