IBM x3630 M4 Type 7158 - System-Board Jumpers

System-board jumpers
This section describes the jumpers on the system board.
Table 3. System board jumpers
Jumper number Jumper name Jumper setting
CN14 Clear CMOS jumper
v Pins 1 and 2: Normal
(default) - This keeps the
CMOS data.
v Pins 2 and 3: This clears
the CMOS data such as
power-on password and
loads the default UEFI
settings.
Note 2
J2 UEFI boot recovery jumper
v Pins 1 and 2: Normal
(default) Loads the primary
firmware ROM page.
v Pins 2 and 3: Loads the
secondary (backup)
firmware ROM page.
Notes 1 and 2
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the UEFI 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.
Important:
1. Before you change any switch settings or move any jumpers, turn off the server;
then, disconnect all power cords and external cables. (Review the information in
30 System x3630 M4 Type 7158: Installation and User’s Guide