Lenovo ThinkServer RD240 Hardware Maintenance Manual page 36

Figure 6. Locating other connectors on the system board
1
System fan 1 connector
2
System fan 2 connector
3
System fan 3 connector
4
System fan 4 connector
5
Front USB connector
6
J51 (SGPIO connector for onboard
SAS port 1-4)
The following table introduces the jumper switches on the system board.
Table 6. Jumper settings
Jumper Position
JP1: Clear Pins 1-2
CMOS
Pins 2-3
Pins 1-2
JP7: Set
Onboard
SAS
Pins 2-3
Note: Before clearing the CMOS, turn off the server and disconnect the power cord. Move the jumper from
pins 1-2 to pins 2-3. Wait more than five minutes and then move the jumper back to the normal position
(pins 1-2) to clear CMOS.
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ThinkServer RD240 Hardware Maintenance Manual
7
J35 (for front control cable)
8
JP1 (clear CMOS)
9
USB 2 connector
10
J21 (SGPIO connector for onboard SAS port 5-8)
11
JP7 (set onboard SAS)
12
J16 (COM2 connector)
The default position at which the jumper is placed on pins 1-2 during the normal
operation of the system.
If the jumper is placed on pins 2-3, when the jumper is moved back to the default
positions and at the next startup, the settings of CMOS will be cleared automatically.
The default position at which the jumper is placed on pins 1-2 during the normal
operation of the system. The onboard SAS controller is Enabled.
If the jumper is placed on pins 2-3, the onboard SAS controller is Disabled.
Description