Figure 12. System-board switches
Table 9. System-board switches
1 Switch block (SW1) 2 Switch block (SW18)
Important:
1. Before changing any switch settings or moving any jumpers, make sure to 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.
The following table describes the switches on the system board.
Table 10. System-board switches
Switches
block
Switch
number
Switch name
Usage description
On Off
SW1
1
XCC boot backup The node will boot by using a
backup of the XCC firmware
Normal (default)
2
CMOS clear Clears the real-time clock (RTC)
registry
Normal (default)
3
Password override Overrides the power-on password Normal (default)
4
MFG mode Enables MFG mode of firmware
(uEFI/XCC/FPGA)
Normal (default)
5
XCC COM port Enables XCC to the serial port Normal (default)
26 ThinkEdge SE350 V2 System Configuration Guide
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