Backplates And Backplanes - Lenovo ThinkSystem SR250 V2 Maintenance Manual

Table 8. System-board jumpers and buttons
Jumper and button name
Force NMI button
1
Power permission override jumper
2
Force XCC update jumper
3
Clear CMOS jumper
4
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 information in
safety_documentation/pdf_files.html
devices" on page 53, and
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.

Backplates and backplanes

Use this information to identify the backplate or the backplane you use.
Backplate, four 3.5-inch simple-swap drives (connects to onboard connectors)
Figure 17. Backplate, four 3.5-inch simple-swap drives (connects to onboard connectors)
ThinkSystem SR250 V2 Maintenance Manual
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Jumper setting / Button function
This button is on the rear of the server. Press this button to force a
nonmaskable interrupt to the processor. You might have to use a
pen or the end of a straightened paper clip to press the button.
You can also use it to force a blue-screen memory dump (use this
button only when you are directed to do so by Lenovo Support).
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Override the power-on permission.
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Force the Lenovo XClarity Controller to update to
the latest version.
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Clear the real-time clock (RTC) registry.
, "Installation Guidelines" on page
"Power off the server" on page
http://thinksystem.lenovofiles.com/help/topic/
51, "Handling static-sensitive
11.