IBM HS40 - BladeCenter - 8839 Maintenance And Troubleshooting Manual page 104

Note: See Chapter 7, "Parts listing, Type 8839," on page 105 to determine which components should be replaced by
a field service technician.
Power problems
Symptom
Power switch does not work
and reset button, if
supported, does work.
The blade server does not
turn on.
The blade server does not
turn on and the following
conditions are present:
1. The amber system error
LED on the Blade Center
unit system LED panel is lit;
2. The amber blade error LED
on the blade server LED
panel is lit; and
3. The system error log
contains the message
"CPUs mismatched".
The blade server turns off for
no apparent reason
The blade server does not
turn off.
94
BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide
FRU/action
1. Reseat connector.
2. Front bezel with customer card.
3. System board.
1. Make sure that:
a. The power LED on the front of the BladeCenter unit is on.
b. The LEDs on all the BladeCenter power modules are on.
c. If the blade server or attached storage expansion unit is in blade bay 7-14,
power modules are in power bays 1, 2, 3 and 4.
d. The power-on LED on the blade server control panel is blinking slowly.
v If the power LED is blinking rapidly and continues to do so, the blade
server is not communicating with the management module; reseat the
blade server, then go to step 3
v If the power LED is off, the blade bay is not receiving power, the blade
server is defective, or the LED information panel is loose or defective.
e. Local power control for the blade server is enabled (use the BladeCenter
management module Web interface to verify), or the blade server was
instructed through the management module (Web interface or IBM Director)
to turn on.
2. If you just installed an option in the blade server, remove it, and restart the
blade server. If the blade server= now turns on, you might have installed more
options than the power to that blade bay supports.
3. Try another blade server in the blade bay; if it works, replace the faulty blade
server.
4. See "Undetermined problems" on page 101.
The microprocessor with the lowest feature set must be used as the startup
microprocessor (microprocessor 1; see "Processor board components" on
page 35). Move the microprocessor in location U66 to location U70, and move the
microprocessor in location U70 to location U66.
1. Make sure that all blade bays have a blade server, expansion unit, or filler
blade properly installed. If these components are missing or improperly
installed, an over-temperature condition may result in shutdown.
2. If microprocessor LED is illuminated, replace the microprocessor.
1. Determine whether you are using an ACPI or non-ACPI operating system.
If you are using a non-ACPI operating system:
a. Press Ctrl+Alt+Delete.
b. Turn off the system by holding the power-control button for 4 seconds.
c. If computer fails during BIOS POST and power-control button does not
work, remove the blade server from the bay and reseat it.
2. If the problem remains or if you are using an ACPI-aware operating system,
suspect the system board.