System-board switches
The following illustration shows the location and description of the switches.
Important:
1. If there is a clear protective sticker on the switch blocks, you must remove and discard it to access the
switches.
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
Figure 15. Location of the switches, jumpers, and buttons on the system board
The following table describes the jumpers on the system board.
Table 13. Jumper definition
Switch
block
Switch
Switch name
Usage description
Open
Close
S18
2
XClarity Controller
boot backup
Normal (default)
The compute node will boot by
using a backup of the XClarity
Controller firmware.
3
XClarity Controller
force update
Normal (default)
Enables XClarity Controller
force update
4
TPM physical
presence
Normal (default)
Indicates a physical presence
to the system TPM
S19
1
System UEFI backup
Normal (default)
Enables system BIOS backup
2
Password override
jumper
Normal (default)
Overrides the power-on
password
3
CMOS clear jumper
Normal (default)
Clears the real-time clock (RTC)
registry
Important:
1. Before you change any switch settings or move any jumpers, turn off the solution; then, disconnect all
power cords and external cables. Review the information in
http://thinksystem.lenovofiles.com/help/topic/
21
Summary of Contents for ThinkAgile VX3720 7Y12
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