Table 5. Light path LED errors
Light path diagnostics LED Description Action
None An error has occurred and
cannot be isolated, or the
IMM2 has failed.
Make sure that the light path
diagnostics LED is lit to
ensure that there is enough
power in the compute node
to light the rest of the LEDs.
Battery error The battery failed.
1. Reseat the battery.
2. Replace the battery.
3. (Trained service
technician only) Replace
the system-board
assembly.
DIMM x error A memory error occurred.
1. Make sure that the
DIMM that is indicated
by the lit LED is
supported.
2. Reseat the DIMM that is
indicated by the lit LED.
3. Replace the DIMM that is
indicated by the lit LED
(see “Removing a DIMM”
on page 501, and
“Installing a DIMM” on
page 502)
Note: Multiple DIMM LEDs
do not necessarily indicate
multiple DIMM failures. If
more than one DIMM LED is
lit, reseat or replace one
DIMM at a time until the
error is corrected (see
“Removing a DIMM” on
page 501, and “Installing a
DIMM” on page 502)
Light path diagnostics LED System board light path
diagnostics LEDs have
power.
Check for error LEDs that
are lit on the system board
assembly.
60 IBM Flex System x440 Compute Node Types 7917 and 2584: Installation and Service Guide
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