IBM BladeCenter JS12 Problem Determination And Service Manual page 230

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 3, "Parts listing, Type 7998," on page 235 to determine which components are CRUs and which
components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Isolation
Symptom
Procedure Code
MEMDIMM The failing
Symbolic CRU component is one of
the memory DIMMs.
NO12VDC Error code 1xxx2647
Symbolic CRU indicates that the
blade server is
reporting that 12V dc
is not present on the
BladeCenter
midplane.
NODEPL The failing
Symbolic CRU component is the
node midplane.
TOD_BAT The battery for the
Symbolic CRU time-of-day battery is
low or failing.
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JS12 Type 7998: Problem Determination and Service Guide
Action
1. Replace the failing CRU:
DIMM 1 (P1-C1)
Memory module 1
DIMM 2 (P1-C2)
Memory module 2
DIMM 3 (P1-C3)
Memory module 3
DIMM 4 (P1-C4)
Memory module 4
DIMM 5 (P1-C5)
Memory module 5
DIMM 6 (P1-C6)
Memory module 6
DIMM 7 (P1-C7)
Memory module 7
DIMM 8 (P1-C8)
Memory module 8
2. See "Removing a memory module" on page 251 for location
information and the removal procedure.
3. Install new memory DIMMs, as described in "Installing a memory
module" on page 251.
See "Supported DIMMs" on page 4 for more information.
1. Check the management-module event log for entries that indicate a
power problem with the BladeCenter unit.
2. Resolve any problems.
3. Remove the blade from the BladeCenter unit and then reinsert the
blade server.
4. Power on the blade server.
5. Monitor the blade server operation to verify that the problem is
solved.
6. If the BladeCenter unit is functioning normally, but the 1xxx2647
problem persists, replace the system board and chassis assembly, as
described in "Replacing the Tier 2 system-board and chassis
assembly" on page 274.
Replace the system board and chassis assembly, as described in
"Replacing the Tier 2 system-board and chassis assembly" on page 274.
Replace the battery, as described in "Removing the battery" on page 267
and "Installing the battery" on page 268.