Checkout Procedure; About The Checkout Procedure - IBM System x3800 Problem Determination And Service Manual

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, System x3800 Type 8866," on page 107 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Error code Description
I9990650 AC power has been restored.

Checkout procedure

The checkout procedure is the sequence of tasks that you should follow to
diagnose a problem in the server.

About the checkout procedure

Before performing the checkout procedure for diagnosing hardware problems,
review the following information:
v Read the safety information that begins on page vii.
v The diagnostic programs provide the primary methods of testing the major
v When you run the diagnostic programs, a single problem might cause more than
v Before running the diagnostic programs, you must determine whether the failing
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IBM System x3800 Type 8866: Problem Determination and Service Guide
components of the server, such as the I/O board, Ethernet controller, keyboard,
mouse (pointing device), serial ports, and hard disk drives. You can also use
them to test some external devices. If you are not sure whether a problem is
caused by the hardware or by the software, you can use the diagnostic programs
to confirm that the hardware is working correctly.
one error message. When this happens, correct the cause of the first error
message. The other error messages usually will not occur the next time you run
the diagnostic programs.
Exception: If there are multiple error codes or light path diagnostics LEDs that
indicate a microprocessor error, the error might be in a microprocessor or in a
microprocessor socket. See "Microprocessor problems" on page 43 for
information about diagnosing microprocessor problems.
server is part of a shared hard disk drive cluster (two or more servers sharing
external storage devices). If it is part of a cluster, you can run all diagnostic
programs except the ones that test the storage unit (that is, a hard disk drive in
the storage unit) or the storage adapter that is attached to the storage unit. The
failing server might be part of a cluster if any of the following conditions is true:
Action
1. Check the power cables.
2. Check for interruption of the power supply (see
"Power-supply LEDs" on page 58).
3. Reseat the following components:
a. Power supply
b. Microprocessor tray
4. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Power supply
b. (Trained service technician only)
Microprocessor tray