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Chapter 2 69
Troubleshooting
Using the System Board LEDs for Troubleshooting
Using the System Board LEDs for Troubleshooting
This section provides a description of the system board’s Light Emitting Diodes (LEDs)
and how to use them for troubleshooting. These LEDs are located inside of the workstation
on the system board’s left-back edge. See Figure 2-5.. Note that you will have to view these
LEDs through the airflow holes on the back of your workstation.
Figure 2-5. System Board LEDs
For those system problems that this section is not able to solve, you will have to call your
local HP Support Representative. Before you call, record the state (on, off or blinking) of
your LEDs and give this information to your local HP support representative. The
representative will use this information to determine the course of action to take.
Interpreting the LED Information
Table 2-2. explains how to interpret the information the system board LEDs provide. Note
that the SUPPLY LED is reserved for future functionality.
Table 2-2. Interpreting the System Board LEDs
LED Name LED’sColor
When On
Description
VRM1 Green This light, when on, indicates that the
voltage regulator module is working
correctly for processor one. The default
state for this light is on.