IBM BladeCenter HS22V 7871 Problem Determination And Service Manual page 191

v See Chapter 4, "Parts listing, Types 7871 and 1949," on page 41 to determine which components are CRUs and
which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
The blade server does not turn
on.
The blade server turns off for
no apparent reason.
Action
1. Check the function of the shared BladeCenter unit resources. See "Solving
shared BladeCenter resource problems" on page 217.
2. Make sure that the power-on LED on the blade server control panel is flashing
slowly. See "Blade server controls and LEDs" on page 10.
v If the power LED is flashing rapidly and continues to do so, the blade server
is not communicating with the Advanced Management Module; reseat the
blade server. See "Removing the blade server from the BladeCenter unit" on
page 52 and "Installing the blade server in a BladeCenter unit" on page 53.
v If the power LED is off, the blade server bay is not receiving power, the
blade server is defective, or the LED information panel is loose or defective.
See "Removing the blade server from the BladeCenter unit" on page 52 and
"Installing the blade server in a BladeCenter unit" on page 53.
3. Check the power-management policies in the operating system for the blade
server. See the Advanced Management Module User's Guide for more information
(see "Related documentation" on page 6).
4. Check the Advanced-Management-Module log of the corresponding blade
server for an error that is preventing the blade server from turning on. See
"Error logs" on page 99.
5. Reseat the blade server - See "Removing the blade server from the BladeCenter
unit" on page 52 and "Installing the blade server in a BladeCenter unit" on
page 53.
6. If you just installed a device in the blade server, remove it and restart the
blade server. If the blade server now starts, you might have installed more
devices than the power to that blade server bay supports.
7. If you tried another blade server in the blade server bay when you check the
function of the shared BladeCenter unit resources and the other blade server
worked, complete the following tasks on the blade server that you removed:
a. If an optional expansion unit is installed, reseat it - See "Removing an
optional expansion unit" on page 57 and "Installing an optional expansion
unit" on page 58.
b. Replace the following components one at a time, in the order shown,
restarting the blade server each time:
1) Optional expansion unit (if one is installed) - See "Removing an
optional expansion unit" on page 57 and "Installing an optional
expansion unit" on page 58.
2) (Trained service technician only) System-board assembly - See
"Removing the system-board assembly" on page 94 and "Installing the
system-board assembly" on page 95.
8. See "Solving undetermined problems" on page 222.
1. Check the function of the shared BladeCenter unit resources. See "Solving
shared BladeCenter resource problems" on page 217.
2. (Trained service technician only) If the microprocessor error LED is lit, replace
the microprocessor - See "Removing a microprocessor and heat sink" on page
85 and "Installing a microprocessor and heat sink" on page 88.
3. (Trained service technician only) Replace the system-board assembly - See
"Removing the system-board assembly" on page 94 and "Installing the
system-board assembly" on page 95.
175
Chapter 6. Diagnostics