IBM 8862 Hardware Maintenance Manual - Page 97

Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are replaceable by the customer and which components must be replaced by an IBM field service technician. Beep/symptom FRU/action 3-3-2 (Critical SMBUS error occurred) 1. Disconnect power cord, wait 30 seconds, retry. 2. DIMM. 3. Memory cassette. 4. Microprocessor tray assembly. 5. I/O board. 3-3-3 (No operational memory in system) 1. Verify that lower SMP Expansion Module contains correct number of DIMMs; install or reseat DIMMS, then reboot. 2. DIMM. 3. Memory cassette. 4. Microprocessor tray assembly. Two short beeps (information only, configuration has changed) 1. Run Configuration/Setup. 2. Run diagnostic programs. Three short beeps 1. DIMM 2. Memory cassette 3. Microprocessor tray assembly One continuous beep 1. Microprocessor 2. Optional microprocessor 3. Microprocessor tray assembly Repeating short beeps 1. Keyboard 2. I/O board Repeating long beeps v Reseat DIMMs. One long and one short beep 1. I/O board 2. Center plane One long and two short beeps v I/O board Two long and two short beeps v I/O board No beep symptoms Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are replaceable by the customer and which components must be replaced by an IBM field service technician. No beep symptom FRU/action No beep and the system operates correctly. v Operator information panel No beeps occur after successfully completing POST (Power-On Status is disabled.) 1. Run Configuration/Setup, set the Start Options Power-On Status to enable. 2. Operator information panel. No ac power (Power supply ac LED is off) 1. Check the power cord. 2. Power supply (if two are installed, swap them to determine if one is defective.) 3. Power backplane No beep and no video v See "Undetermined problems" on page 136. Chapter 6. Symptom-to-FRU index 87