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IBM 7945G2U Installation And User Manual page 32

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To access the light path diagnostics panel, slide the blue release button on the
operator information panel to the left. Pull forward on the operator information panel
until the hinge of the panel is free of the server chassis. Then pull down on the
operator information panel, so that you can view the light path diagnostics panel
information.
Operator information
panel
The following illustration shows the controls and LEDs on the light path diagnostics
panel.
Notes:
1. Do not run the server for an extended period of time while the light path
2. Light path diagnostics LEDs remain lit only while the server is connected to
v Remind button: This button places the system-error LED on the front panel into
v NMI button: Press this button to force a nonmaskable interrupt to the
v Reset button: Press this button to reset the server and run the power-on
For more information about light path diagnostics, see the Problem Determination
and Service Guide on the IBM Documentation CD.
16
System x3650 M3 Types 4255, 7945, and 7949: Installation and User's Guide
Light path
diagnostics LEDs
Release latch
diagnostics panel is pulled out of the server.
power.
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. The remind function is controlled by the IMM.
microprocessor, if directed to do so by IBM service and support.
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.
Checkpoint
code display

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