Level 2 light path LED FRU/ActionPS1 LED on 1. Power Supply 12. Power Backplane3. System BoardPS2 LED on 1. Power Supply 22. Power Backplane3. System BoardPS3 LED on 1. Power Supply 32. Power Backplane3. System BoardOVER TEMP LED on (temperaturetoo high) 1. If a fan LED is on, replace the fan.2. Ambient temperature must be within normal operating specifications. SeeTable 1 on page 4.3. Examine System Error Log.a. System over recommended temperatureb. Operator Information Panelc. DASD over recommended temperature1) Overheating hard drive2) DASD backplane3) System boardd. System over recommended temperature for processor X (where X isprocessor number) (processor LED also on)1) Processor X2) System Boarde. Power Supply fault / over temp1) Failing power supplyEXP (device in remote expansionI/O has failed)Notes:1. If the amber status LED is onfor a device in the remoteexpansion I/O indicates aproblem, replace the device.2. Check server error log forindications of a failure in adevice installed in the remoteexpansion I/O or in theexpansion I/O itself. If the logindicates a problem in theexpansion I/O, see the problemsolving information in theexpansion I/O documentation.1. Check System Error Log (if log indicates a temperature problem and fansare working correctly, check for air flow blockage)2. Check light path on expansion box3. Replace indicated deviceSee Log (non optimal condition) 1. See System Error Log2. See Service Processor logNMI (nonmaskable interrupt)Note: A PCI or MEM LED mayalso be on.1. See System Error Log2. If a PCI LED is on, follow the instructions for that LED.3. If MEM LED is on, follow the instructions for that LED.4. Restart the server.Symptom-to-FRU index 119
