System-Board Jumpers - IBM System x3755 M3 7164 Installation And User Manual

System-board jumpers

The following illustration shows the jumpers on the system board.
Clear CMOS jumper
Table 2 describes the function of each jumper block.
UEFI boot recovery jumper
Table 2. System board jumpers
Jumper number
J57
Jumper name
Clear CMOS jumper
Chapter 2. Installing optional devices
Jumper setting
v Pins 1 and 2: Normal
(default) - This keeps the
CMOS data.
v Pins 2 and 3: This clears
the CMOS data such as
the power-on password
and administrator
password, and loads the
default UEFI settings.
Notes:
1. If the clear CMOS jumper
did not reset the system
date and time, use the
clear CMOS jumper again
to load the default
settings.
2. You may also use the
Advanced Settings Utility
(ASU) to load the default
UEFI settings (see "Using
the IBM Advanced
Settings Utility program"
on page 86).
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