IBM System x3530 M4 Installation And Service Manual page 33

To access the optional advanced light path diagnostics panel, push the blue release
button on the advanced operator information panel. Pull forward on the unit until
the hinge of the operator panel is free of the server chassis. Then pull down on the
unit, so that you can view the light path diagnostics panel information.
Note: When you slide the optional advanced light path diagnostics panel out of
the server to check the LEDs, do not run the server continuously with light path
diagnostics panel outside of the server. The panel should only be outside of the
server a short time. The optional advanced light path diagnostics panel must
remain in the server when the server is running to ensure proper cooling.
The following illustration shows the LEDs and controls on the light path
diagnostics panel.
v Remind button: This button places the system-error/Check Log LED on the
front 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.
Chapter 1. The IBM System x3530 M4 Type 7160 server
17