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
Loader Watchdog Triggered
1. Reconfigure the loader watchdog timer to be a higher value
(twice the normal operating-system boot time).
2. Install the Remote Supervisor Adapter II SlimLine device driver
for the operating system.
3. Disable the loader watchdog.
4. Check the integrity of the installed operating system.
5. Reinstall the operating system with the applicable device
drivers.
Machine check asserted Note: Make sure you re-enable the memory in the
Configuration/Setup Utility program. See, “Memory problems” on
page 42
1. Reseat the memory card.
2. Replace the memory card.
Machine check asserted - SPINT, North Bridge Information only, Just an indication of who reported the SPINT first.
Machine check asserted - SPINT, PCI Bridge A Information only. Just an indication of who reported the SPINT first.
Machine check asserted - SPINT, PCI Bridge B Information only. Just an indication of who reported the SPINT first.
Machine check asserted - SPINT, Remote
CheckStop
Information only. Just an indication of who reported the SPINT first.
Machine check asserted for Card or Link -
SPINT, Remote Node, Link 1
Information only. The machine check was reported by the node
connected to scalability port 1.
Machine check asserted for Card or Link -
SPINT, Remote Node, Link 2
Information only. The machine check was reported by the node
connected to scalability port 2.
Machine check asserted for Card or Link -
SPINT, Remote Node, Link 3
Information only. The machine check was reported by the node
connected to scalability port 3.
Machine check asserted for Card or Link -
SPINT, Scalability
1. Reseat the scalability cables and microprocessor board.
2. Replace the scalability cables.
3. Replace the scalability cartridge assembly.
4. Replace the microprocessor board.
Machine check asserted for Card or Link -
SPINT, Quad Bus A
1. Reseat microprocessor 1 and 2.
2. Replace microprocessor 1 or 2.
3. Replace the microprocessor board.
Machine check asserted for Card or Link -
SPINT, Quad Bus B
1. Reseat microprocessor 3 and 4.
2. Replace microprocessor 3 or 4.
3. Replace the microprocessor board.
Machine check asserted for Card or Link -
SPINT, CPU Card
1. Reseat the microprocessors and microprocessor board.
2. Replace the microprocessor board.
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IBM System x3950 Type 8878 and System x3950 E Type 8879: Problem Determination and Service Guide