Diagnostic Light Codes
This sections provides an overview of the diagnostic lights that are related to your workstation.
NOTE: The beeps are heard through the
Table
Chassis Indicator Lights
Power LED and Sound Activity Diagnosis and Service Action
None | System does not power on. | |
| Press the power button. If the HDD LED is green: | |
| 1. | Check that the power supply cables are properly connected to the system board. |
| 2. | Remove the expansion cards one at a time. |
| 3. | Replace the system board. |
| Or |
|
| Press the power button. If the HDD LED does not illuminate: | |
| 1. | Check that the unit is plugged into a working AC outlet. |
| 2. | Check that the power button harness is properly connected to the |
|
| panel I/O device assembly connector. |
| 3. | Check that the power supply cables are properly connected to the system board. |
| 4. | Check the power supply functionality. |
|
| a. Disconnect the AC power. |
|
| b. Remove all internal power supply cables from the system board. |
c. Plug in the AC power.
• If the power supply fan spins and the BIST LED lights, the power supply is functional. Replace the system board.
• If the power supply fan does not spin or the BIST LED does not light, replace the power supply.
Beeps and blinks RED two times
Thermal shutdown:
1.Ensure the workstation air vents are not blocked and the cooling fans are running.
2.Press the power button, and see if the fans on the CPU heatsinks spin. If they are not spinning, ensure the fan cable is plugged into the system board. Ensure the CPU heatsinks are properly seated.
3.If the CPU heatsinks are plugged in and seated but are not spinning, replace the CPU heatsinks.
4.Reseat the CPU heatsinks and verify the fan assemblies are properly attached.
Beeps and blinks RED 3 times CPU is not installed: 1. Install CPU.
2. Reseat CPU.
140 System Diagnostics and Troubleshooting
