Table 2. Jumper definition
Jumper name
Description
Clear CMOS jumper
• Pins 1 and 2: Keep CMOS data (default)
• Pins 2 and 3: Clear CMOS data
SATADOM power jumper
(JP136)
• Pins 1 and 2: No SATADOM installed (default)
• Pins 2 and 3: SATADOM installed
Warning:
Do not surround Pin 3 and 4 with SATADOM power jumper.
The following table describes the functions of the SW1 switch block on the system board.
Table 3. System board SW1 switch block definition
Switch
number
Default
position
Description
1
Off
BIOS recovery.
2
Off
ME recovery.
3
Off
Default off.
4
Off
Password clear.
System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system board.
The Lenovo ThinkServer sd350 Server Type 5493, Lenovo ThinkServer n400 Enclosure Type 5495
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