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System-board switches
The following illustrations show the location of the switches, jumpers, and buttons on the server.
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 following information:
•
https://pubs.lenovo.com/safety_documentation/
• "Installation Guidelines", "Handling static sensitive devices", and "Power off the server " in User
Guide or Hardware Maintenance Guide.
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
Note: If there is a clear protective sticker on the top of the switch blocks, you must remove and discard it to
access the switches.
Figure 9. System-board switches
SW5
1
SW5 switch block
Table 10. SW5 switch block definition
Switch
Switch name
number
1
XCC reset
3
XCC boot primary
4
Password override
SW11 switch block
Table 11. SW11 switch block definition
Switch
Switch name
number
3
Clear CMOS
SW11
2
On
Force hot reset BMC chip
Request XCC to boot from backup
bank
Overrides the power-on password
On
Clear CMOS data
Usage description
Normal (default)
Request XCC to boot from primary
bank (default)
Normal (default)
Usage description
Normal (default)
.
Chapter 2
Hardware components
Off
Off
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