IBM 8688 - page 167

Service Processor message FRU/action
Memory Card Machine Check CYC_MCK2
1. Run diagnostics.
2. Memory board.
3. Processor board.
4. I/O board.
5. PCI-X board.
6. Midplane board.
Native I/O Card Machine Check
1. Remove adapters in PCI-X slots 1 and 2, and run
diagnostics.
2. I/O board.
3. Memory board.
4. Midplane board.
PCI Card Machine Check
1. Remove PCI adapters, and run diagnostics.
2. PCI-X board.
3. Memory board.
4. Midplane board.
PCI Power Good Fault
1. Remove PCI adapters and run diagnostics.
2. PCI-X board.
Power supply 1-2 current exceeded max spec
value
1. Check both power supplies are installed and connected to
ac.
2. Power supply 1-2.
3. Power backplane.
Power Supply 1-2 Current Fault
1. Check/replace power supply 1-2.
2. Power backplane.
Power Supply 1-2 Overcurrent Fault
1. Check/replace power supply 1-2.
2. Power backplane.
Power Supply 1-2 12v Overvoltage Fault
1. Check/replace power supply 1-2.
2. Power backplane.
Power Supply 1-2 12v Undervoltage Fault
1. Check/replace power supply 1-2.
2. Power backplane.
Power Supply 1-2 5v Undervoltage Fault
1. Check/replace power supply 1-2.
2. Power backplane.
Power Supply 1-2 ac Power Removed, Early
Power Off Warning
Check ac power inputs.
Power Supply 1-2 dc Good Fault Check/replace power supply 1-2.
Power Supply 1-2 Fan Fault Check/replace power supply 1-2.
Power Supply 1-2 Removed Check/replace power supply 1-2.
Power Supply 1-2 Temperature Fault
1. Check for airflow obstructions.
2. Check/replace power supply 1-2.
System shutoff due to CPU 1-4 over
temperature
1. Check for airflow obstructions.
2. Check fans.
3. Microprocessor 1-4.
Chapter 6. Symptom-to-FRU index 157