Light Path Diagnostics Panel - IBM x3550 Problem Determination And Service Manual

Light path diagnostics panel

The light path diagnostics panel is on the top of the operator information panel.
To access the light path diagnostics panel, push the release button on the operator
panel to the left. 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 the operator information
panel is at a right angle with the server.
Operator information
panel
The following illustration shows the LEDs and controls on the light path diagnostics
panel.
v Remind button: This button places the system-error LED on the front panel into
v Reset button: Press this button to reset the server and run the power-on
For information about light path diagnostics, see the System x3550 Problem
Determination and Service Guide on the IBM System x Documentation CD.
Release button
Light Path
Diagnostics
OVER SPEC
CPU
REMIND
MEM
SP
FAN
PCI
Remind mode. In Remind mode, the system-error LED flashes rapidly until the
problem is corrected, the system 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 handled by the BMC.
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 to the right of the remind button.
Light path LEDs
PS1 PS2
VRM CNFG
NMI
S ERR
DASD RAID
TEMP BRD
7
Chapter 1. Introduction