IBM System x3950, Problem Determination And Service 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 Chapter 3, “Parts listing, Type 8878 and 8879,” on page 109 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.
System-error log message Action
Machine check asserted for Card or Link -
SPINT, I/O Bus Interface
1. Reseat the adapter cards.
2. Reseat the microprocessor board.
3. Replace the adapters.
4. Replace the PCIX board.
5. Replace the microprocessor board.
Machine check asserted for Card or Link -
SPINT, System, PCI-X Card, Super I/O Card
1. Reseat the Super I/O board.
2. Replace the Super I/O board.
3. Replace the PCI-X board.
Machine check asserted for Card or Link -
SPINT, System, PCI-X Card, Super I/O Card,
RAID Card
1. Reseat the Super I/O board and ServeRAID 8i adapter (if
installed).
2. Replace the ServeRAID 8i adapter.
3. Replace the Super I/O board.
4. Replace the PCI-X board.
Machine check asserted for PCI-X Card or Slot
X - SPINT
1. Reseat the adapter in slot X.
2. Replace the adapter in slot X.
3. Replace the PCI-X board.
SPINT reported a Machine Check on Memory
Card = X
Replace CPU board
1. Reseat the memory card X.
2. Replace the memory card X.
3. Replace the microprocessor board.
SPINT reported a Machine Check on Memory
Card X, DIMM Y.
1. Reseat DIMM Y.
2. Replace DIMM Y.
3. Replace memory card X.
4. Replace the microprocessor board.
Memory Card x inserted Information only; if the message remains:
1. Make sure that the memory card lever is securely latched.
2. Reseat the memory card.
Memory Card x removed Information only; if the message remains:
1. Make sure that the memory card lever is securely latched.
2. Reseat the memory card.
MMIO operation error Invalid memory access error.
1. Check the integrity of the installed operating system.
2. Check that the latest service pack is applied to the operating
system.
3. Check that the latest device drivers are installed.
Multiple fan failures Replace any missing or failed fans or power supplies.
Chapter 2. Diagnostics
87