- Notes, cautions, and warnings
- Working on your computer
- Chassis
- Disassembly and reassembly
- Technology and components
- System setup
- Troubleshooting
- Getting help
Power LED light status | Possible cause | Troubleshooting steps |
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Off | The computer is either turned off or is not receiving power or in Hibernation mode. |
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Steady/blinking amber | Computer fails to complete POST or processor failure. |
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Slow Blinking white light | Computer is in sleep mode. |
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Steady white | The computer is fully functional and in the On state. | If the computer is not responding, do the following:
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State | State Name | Blinking Amber Pattern | Problem Description | Suggested Resolution |
---|---|---|---|---|
- | - | 2 blinks > short pause > 1 blink > long pause > repeats | Bad Motherboard | 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 |
S1 | RCM | 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 |
S2 | CPU | 2 blinks > short pause > 6 blinks > long pause > repeats | Bad Processor | CPU configuration activity is in progress or a CPU failure was detected. Replace the processor |
S3 | MEM | 2 blinks > short pause > 7 blinks > long pause > repeats | Memory failures | Memory subsystem configuration activity is in progress. Appropriate memory modules were detected but a memory failure has occurred. If customer can assist to troubleshoot, narrow down the issue with reseating memory and swapping a known good memory if available. If nothing works, replace the memory. |
S4 | PCI | 3 blinks > short pause > 1 blinks > long pause > repeats | PCIe Device or Video subsystem failures | PCIe device configuration activity is in progress or PCIe device failure was detected. If customer can assist to troubleshoot, narrow down the issue by reseating PCIe card and removing one by one to determine which card failed. If identified the PCIe card failed, replace the PCIe Card. If none of the PCIe Cards failed, replace the motherboard. |
S5 | VID | 3 blinks > short pause > 2 blinks > long pause > repeats | Video Subsystem failure | Video subsystem configuration activity in progress or video subsystem failure. If customer can assist to troubleshoot, narrow down the issue by removing one by one to determine which card failed. If identified the card failed, replace the card. If none of the card failed, replace the motherboard. |
S6 | STO | 3 blinks > short pause > 3 blinks > long pause > repeats | No Memory detected | If customer can assist to troubleshoot, narrow down the issue by removing one by one memory to determine which one failed and swapping to a known good memory if available to confirm. If identified the memory failed, replace the memory. If none of the memory failed, replace the motherboard. |
S7 | USB | 3 blinks > short pause > 4 blinks > long pause > repeats | Storage Subsystem failure | Possible storage device configuration in progress or storage subsystem failure. If customer can assist to troubleshoot, narrow down the issue by removing one by one storages on motherboard to determine which one failed. If identified the storage failed, replace the storage. If identified the storage failed, replace the storage. |
S8 | MEM | 3 blinks > short pause > 5 blinks > long pause > repeats | Memory configuration or incompatible error | Memory subsystem configuration activity is in progress. No memory modules were detected. If customer can assist to troubleshoot, narrow down the issue by removing one by one the memory on motherboard to determine which one failed. Also, combining the configuration to validate appropriate combination. If identified the component failed, replace the component. If none of the component failed, replace the motherboard. |
S9 | MBF | 3 blinks > short pause > 6 blinks > long pause > repeats | System board failure | Fatal system board failure detected. If customer can assist to troubleshoot, narrow down the issue by removing one by one the component on motherboard to determine which one failed. If identified any of the component failed, replace the component. If none of the component failed, replace the motherboard. |
S10 | MEM | 3 blinks > short pause > 7 blinks > long pause > repeats | Possible memory failure | Memory subsystem configuration activity is in progress. Memory modules have been detected but appear to be incompatible or in an invalid configuration. If customer can assist to troubleshoot, narrow down the issue by removing one by one the memory on motherboard to determine which one failed. If identified the memory failed, replace the memory. If else, replace the motherboard. |