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 4, “Parts listing, System x3200 M3 Types 7327 and 7328,” on page 133 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.
Component LED Description Action
CPU error LED Microprocessor has failed, is
missing, or has been incorrectly
installed.
Note: (Trained service technician
only) Make sure that the
microprocessor is installed in the
correct sequence; see “Installing a
microprocessor and fan sink” on
page 211.
1. Check the system-event log to determine the
reason for the lit LED.
2. (Trained service technician) Reseat the failing
microprocessor
3. 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) System board
System-board error
LED
System-board CPU VRD and/or
power voltage regulators have
failed.
(Trained service technician only) Replace the system
board.
Battery failure LED Battery low.
1. Replace the CMOS lithium battery, if necessary.
2. (Trained service technician only) Replace the
system board.
IMM heartbeat LED Indicates the status of the boot
process of the IMM.
When the server is connected to
power this LED flashes quickly to
indicate that the IMM code is
loading. When the loading is
complete, the LED stops flashing
briefly and then flashes slowly to
indicate that the IMM if fully
operational and you can press the
power-control button to start the
server.
If the LED does not begin flashing within 30 seconds
of when the server is connected to power, complete
the following steps:
1. (Trained service technician only) Use the IMM
recovery switch (on the SW6 switch block) to
recover the firmware.
2. (Trained service technician only) Replace the
system board.
PCI slots error LEDs An error has occurred on a PCI bus
or on the system board. An
additional LED is lit next to a failing
PCI slot.
1. Check the system-event log for information about
the error.
2. If you cannot isolate the failing adapter through the
LEDs and the information in the system-event log,
remove one adapter at a time, and restart the
server after each adapter is removed.
3. If the failure remains, go to http://www.ibm.com/
systems/support/supportsite.wss/
docdisplay?brandind=5000008&lndocid=SERV-
CALL for additional troubleshooting information.
H8 heartbeat LED power-on and power-off sequencing.
1. If the LED blinks at 1Hz, it is functioning properly
and no action is necessary.
2. If the LED is not blinking, (trained service
technician only) replace the system board.
70 System x3200 M3 Types 7327 and 7328: Problem Determination and Service Guide
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