Lenovo ThinkSystem SR850, Maintenance Manual

Page: 30 / 184

Switches, jumpers, and buttons
The following illustrations show the location of the switches, jumpers, and buttons on the server.
Note: If there is a clear protective sticker on the top of the switch block, you must remove and discard it to
access the switch.
Figure 12. Switches, jumpers and buttons
Table 9. System-board switches, jumpers, and buttons
1
J20
3
Switch block (SW13)
See Table 10 “System-board SW13 switch block
descriptions” on page 22 for more details.
2
Light path button
Press this button to light the LEDs on the system board
when the power source has been removed from the
server.
The following table describes the functions of the SW13 switch block on the system board.
The following table describes the functions of the SW613 switch block on the system board.
Table 10. System-board SW13 switch block descriptions
Switch number
Default position
Off On
1
Off Host TPM Physical Presence
disable Host TPM Physical Presence
enable
22
ThinkSystem SR850 Maintenance Manual