IBM System x3755 M3 7164 Installation And User Manual page 44

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IBM System x3755 M3 Type 7164: Installation and User's Guide
Table 2. System board jumpers (continued)
Jumper number
J117
Notes:
v If no jumper is present, the server responds as if a jumper is on pins 1 and 2.
v Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and
3 before the server is turned on sets the UEFI recovery process. Do not change the
jumper pin position after the server is turned on. This can cause an unpredictable
problem.
Jumper name
UEFI boot recovery jumper
Jumper setting
v Pins 1 and 2: Normal
(default) Loads the primary
UEFI firmware ROM page.
v Pins 2 and 3: Loads the
secondary (backup) UEFI
firmware ROM page.