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• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 3 "Parts listing" on page 29 to determine which components are consumable, structural, or CRU
parts.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
Lit light path
diagnostics LED
Description
None
An error has occurred and cannot be isolated,
or the service processor has failed.
Battery error
The system battery is not installed or is not
working.
CPU MIS
Microprocessor mismatch.
DIMM x error
A memory error occurred.
206
BladeCenter HS23 Blade ServerProblem Determination and Service Guide
Action
1. Make sure that the light path diagnostics
LED is lit, to ensure that there is enough
power in the blade server to light the rest
of the LEDs. See "Viewing the light path
diagnostics LEDs in the blade server" on
page 204.
2. Check the BMC log for information about
an error that is not represented by a light
path diagnostics LED. See "Using the
Setup utility" on page 11.
1. Reseat the battery. See "Removing the
battery" on page 41 and "Installing the
battery" on page 42.
2. Replace the battery. See "Removing the
battery" on page 41 and "Installing the
battery" on page 42.
Make sure that microprocessors 1 and 2 are
identical (number of cores, cache size and
type, clock speed, internal and external clock
frequencies).
1. Verify the type of microprocessors
installed by using the Configuration/Setup
utility. See "Using the Setup utility" on
page 11.
2. (Trained technician only) Replace
microprocessor 2 with an identical
microprocessor to microprocessor 1. See
"Removing a microprocessor and heat
sink" on page 61 and "Installing a
microprocessor and heat sink" on page 65.
Look for system-event and IMM2/AMM logs
related to memory and resolve those events
(see "IMM error messages" on page 105 and
"POST/UEFI diagnostic codes" on page 81).
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