v Remind button: This button places the system-error LED on the operator
information panel into Remind mode. In Remind mode, the system-error LED
flashes once every 2 seconds until the problem is corrected, the server is
restarted, or a new problem occurs.
By placing the system-error LED indicator in Remind mode, you acknowledge
that you are aware of the last failure but will not take immediate action to
correct the problem.
v Reset button: Press this button to reset the server and run the power-on self-test
(POST). You might have to use a pen or the end of a straightened paper clip to
press the button. The Reset button is in the lower-right corner of the light path
diagnostics panel.
Rear view
The following illustration shows the connectors on the rear of the server.
v NMI button: Press this button to force a nonmaskable interrupt to the
microprocessor. It allows you to blue screen the server and take a memory
dump (use this button only when directed by the Lenovo service support). You
Figure 10. Light path diagnostics panel
Figure 11. Rear view connectors
20 System x3550 M4 Type 7914: Installation and Service Guide
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