Dell OptiPlex 5055 A Series Small Form Factor OptiPlex 5055 Small Form Factor - Page 68

NOTE: Amber LED blinking pattern : The pattern is 2 or 3 blinks followed by a short pause then X number of blinks up to 7. The repeated pattern has a long pause inserted in the middle. Example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats. Table 32. Diagnostic power LED codes State State Name - - - - - - - - S1 RCM S2 CPU S3 MEM Blinking Amber Pattern 2 blinks > short pause > 1 blink > long pause > repeats Problem Description Bad Motherboard Suggested Resolution Replace the motherboard 2 blinks > short pause > 2 blinks > long pause > repeats Bad Motherboard, Power Supply or Power Supply cabling If customer can assist to troubleshoot, narrow down the issue with PSU BIST Test, reseat cable. If nothing works, replace the motherboard, power supply or cabling 2 blinks > short pause > 3 blinks > long pause > repeats Bad Motherboard, Memory or Processor If customer can assist to troubleshoot, narrow down the issue by reseating memory and swapping an available known good memory. If nothing works, replace the motherboard, memory or processor 2 blinks > short pause > 4 blinks > long pause > repeats Bad coin cell battery If customer can assist to troubleshoot, narrow down the issue by swapping a known good coin cell battery if available. If nothing works, replace the coin cell battery 2 blinks > short pause > 5 blinks > long pause > repeats BIOS Checksum Failure System is in Recovery Mode. Flash latest BIOS version. If problem persists, replace the motherboard 2 blinks > short pause > 6 blinks > long pause > repeats Bad Processor 2 blinks > short pause > 7 blinks > long pause > repeats Memory failures CPU configuration activity is in progress or a CPU failure was detected. Replace the processor Memory subsystem configuration activity is in progress. Appropriate memory modules were detected but a memory failure has occurred. 68 Troubleshooting