Lenovo 7D8T, Maintenance Manual

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Table 15. AnyBay drive backplane connectors
1
Drive backplane power connector
3
SAS/SATA connector
2
PCIe connector (NVMe)
System-board switches
The following illustrations show the location of the switches on the system board.
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 16. System-board switches
The following table describes the switches on the system board.
Table 16. System-board switches
Switches
block
Switch
number
Switch name
Usage description
On Off
SW5 1
Machine Engine (ME)
firmware security
override ME update mode Normal (default)
SW1
1
XClarity Controller
boot backup
The node will boot by using a
backup of the XClarity Controller
firmware
Normal (default)
2
XClarity Controller
force update Enables XClarity Controller force
update Normal (default)
3
Password override Overrides the power-on password Normal (default)
4
Low security Enable low security
Normal (default)
SW10 4
CMOS clear Clears the real-time clock (RTC)
registry Normal (default)
Chapter 2
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Server components
35