System-Board Switches And Jumpers - Lenovo THINKSERVER RS210 Hardware Maintenance Manual

System-board switches and jumpers

The following illustration shows the switches and jumpers on the system board.
The following table describes the jumpers on the system board.
Table 6. System board jumpers
Jumper number
JP1
JP6
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and 3 before the server is
turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is
turned on. This can cause an unpredictable problem.
Important:
1. Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all
power cords and external cables. Review the information in "Guidelines for trained service
technicians" on page 115, "Handling static-sensitive devices" on page 117, and "Turning off the
server" on page 113.
2. Any system-board switch or jumper blocks that are not shown in the illustrations in this document
are reserved.
Jumper name
Clear CMOS jumper 1
Boot block jumper 2
Chapter 5. Locating Server Controls and connectors
Jumper setting
v Pins 1 and 2: Keep CMOS data
(default).
v Pins 2 and 3: Clear CMOS data
(including power-on password and
administrator password)
v Pins 1 and 2: Boot from primary
BIOS page (default) .
v Pins 2 and 3: Boot from backup
BIOS page.
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