Problem Determination and Service Guide - Public Support Login ...

performed only by a trained service technician.
Symptom Action
The power-control
button does not work,
and the reset button
does work (the server
does not start).
Note: The powercontrol
button will not
function for up to 3
minutes after the server
has been connected to
AC power.
1. Make sure that the operator information panel power-control button is
working correctly:
a. Disconnect the AC power cord for 20 seconds; then, reconnect the AC
power cord and restart the server.
b. Reseat the operator information panel cables, and then repeat step 1a.
• If the server starts, reseat the operator information panel (see
Removing the operator information panel assembly and Replacing
the operator information panel assembly ). If the problem remains,
replace the operator information panel.
• If the server does not start, reseat the operator information panel. If
the problem remains, replace the operator information panel.
2. Make sure that the reset button is working correctly:
a. Disconnect the server power cords.
b. Reconnect the power cords.
c. Reseat the light path diagnostics panel cable (the operator information
panel ribbon cable), and then repeat step 1a.
• If the server starts, replace the operator information panel (see
Removing the operator information panel assembly and Replacing
the operator information panel assembly ).
• If the server does not start, go to step 3.
3. Make sure that:
• The power cords are correctly connected to the server and to a working
electrical outlet.
• The type of memory that is installed is correct.
• The memory card is fully seated.
• The LEDs on the power supply do not indicate a problem.
• The microprocessors are installed in the correct sequence.
Diagnostics
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