Lenovo RS110 User Guide - Page 29

System-board, switches, jumpers

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Important: Use only a supported SAS/SATA controller in the SAS/SATA controller card connector. For a list of supported optional devices for the server, see http://www.lenovo.com/thinkserver. System-board switches and jumpers The following illustration shows the switches and jumpers on the system board. 1 Boot block recovery jumper 2 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 Chapter 2. Installing optional devices 15

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Important:
Use
only
a
supported
SAS/SATA
controller
in
the
SAS/SATA
controller
card
connector.
For
a
list
of
supported
optional
devices
for
the
server,
see
System-board
switches
and
jumpers
The
following
illustration
shows
the
switches
and
jumpers
on
the
system
board.
±1²
Boot
block
recovery
jumper
±2²
Clear
CMOS
jumper
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
Chapter
2.
Installing
optional
devices
15