IBM 419452u User Manual - Page 30
System-board, switches, jumpers
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System-board switches and jumpers The following illustration shows the switches and jumpers on the system board. Boot block recovery jumper SAS/SATA controller card Clear CMOS jumper The following illustration identifies the pins on a jumper and shows the location of pin 1. 3 2 Pin 1 mark 1 Table 2. Switch and jumper settings Component Settings Clear CMOS jumper (JP3) v Pins 1 and 2: Keep CMOS data (default) v Pins 2 and 3: Clear the CMOS data, which clears the power-on password and administrator password Boot block jumper (JP4) v Pins 1 and 2: Normal (default) v Pins 2 and 3: Boot from boot block 16 IBM System x3250 M2 Types 4190 and 4194: User's Guide
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System-board
switches
and
jumpers
The
following
illustration
shows
the
switches
and
jumpers
on
the
system
board.
Boot block
recovery jumper
Clear CMOS jumper
SAS/SATA
controller
card
The
following
illustration
identifies
the
pins
on
a
jumper
and
shows
the
location
of
pin
1.
3
2
1
Pin 1 mark
Table
2.
Switch
and
jumper
settings
Component
Settings
Clear
CMOS
jumper
(JP3)
v
Pins
1
and
2:
Keep
CMOS
data
(default)
v
Pins
2
and
3:
Clear
the
CMOS
data,
which
clears
the
power-on
password
and
administrator
password
Boot
block
jumper
(JP4)
v
Pins
1
and
2:
Normal
(default)
v
Pins
2
and
3:
Boot
from
boot
block
16
IBM
System
x3250
M2
Types
4190
and
4194:
User’s
Guide