Switch block and jumper
The following illustrates locations and functions of the switch block and jumper on the system board.
Important:
• Before you move any jumpers, turn off the server; then, disconnect all power cords and external cables.
Do not open your server or attempt any repair before reading and understanding the following information:
–
http://thinksystem.lenovofiles.com/help/topic/safety_documentation/pdf_files.html
– “Handling static-sensitive devices” on page 131
• If there is a clear protective sticker on the top of the switch blocks, you must remove and discard it to
access the switches.
• Any system-board switch or jumper block that is not shown in the illustrations in this document is
reserved.
Figure 11. Switch block and jumper locations on system board
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