IBM eServer 260 Series Installation Manual page 67

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Problem Determination and Service Guide 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.
Lit light path
diagnostics LED with
the system-error LED
also lit Description
CPU A microprocessor has failed, is
missing, or has been improperly
installed.
Note: Make sure that the
microprocessors are installed in the
correct sequence; see "Installing an
additional microprocessor" on page
16.
VRM A dc-dc regulator has failed or is
missing.
LOG Information is present in the BMC
log and system-error log. One or
both logs might be full or almost full.
Action
1. Check the BMC log or the system-error log to
determine the reason for the lit LED.
2. Find the failing, missing, or mismatched
microprocessor by checking the LEDs on the
microprocessor tray.
3. Reseat the following components:
a. Microprocessor tray
b. (Trained service technician only) Failing
microprocessor
4. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. (Trained service technician only) Failing
microprocessor
b. (Trained service technician only)
Microprocessor tray
1. Check the BMC log or the system-error log to
determine the reason for the lit LED (for a VRM).
2. Find the failing or missing VRM by checking the
LEDs on the microprocessor tray.
3. Install any missing VRMs.
4. Reseat the following components:
a. Failing VRM
b. (Trained service technician only)
Microprocessor associated with the VRM
c. Microprocessor tray
5. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. Failing VRM
b. (Trained service technician only)
Microprocessor associated with the VRM
c. (Trained service technician only)
Microprocessor tray
1. Save the log if necessary. Then, clear the log.
2. Check the log for possible errors.
Chapter 5. Solving problems
55