IBM 7380E1U, Installation And User Manual

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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 Problem Determination and Service Guide on the IBM Documentation CD 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 or
information LED also
lit
Description Action
Memory (MEM) A memory error has occurred.
Note: The error LED on the DIMM
is also lit.
1. Determine whether the CNFG LED is also lit,
which indicates the memory configuration is
invalid. If the CNFG LED is also lit, then
repopulate the DIMMs to a supported
configuration.
2. If the CNFG LED is not lit, one of the following
conditions is present:
v
The server did not start and a failing DIMM LED
is lit.
a. Check for a PFA log event in the System
Event Log (SEL)
b. Reseat the DIMM.
c. Move the DIMM to a different slot or replace
the DIMM.
d. (Trained service technician only) Replace
the system board.
v The server started, the failing DIMM is disabled,
and the LED is lit.
a. If the LEDs are lit by two DIMMs, check the
system event log for PFA on one of the
DIMMs, and then replace the DIMM.
Otherwise, replace both DIMMs.
b. If the LED is lit by only one DIMM, replace
that DIMM.
c. Re-enable the DIMM, using the Setup utility.
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IBM System x3500 M3 Type 7380: Installation and User’s Guide