2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
3. If there is a clear protective sticker on the switch blocks, you must remove and discard it to access
the switches.
00000000
1
2
3
1
2
3
4
Clear CMOS jumper
8
7
6
5
4
3
2
1
ON
SATADOM power jumper
(JP136)
Switch block 1 (SW1)
Figure 11. Location of the switches, jumpers, and buttons on the system board
The following table describes the jumpers on the system board.
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Lenovo ThinkServer sd350 Server Type 5493, Lenovo ThinkServer n400 Enclosure Type 5495Installation and Service Guide