Workstation Power Supply: Overcurrent protection trip | Auckland
Pattern to record: Fans twitch or the PC turns off instantly with one load connected.
Identify the supply and load
A workstation may have proprietary power connectors, multiple processors or high-current expansion cards. Record the installed configuration and OEM supply specification rather than assuming an ordinary ATX replacement is suitable. One possible explanation is that the supply detects excessive current and shuts down to protect itself.
Mains and connector safety
Proprietary workstation connectors must not be assumed to follow ATX wiring. Repeatedly defeating protection can burn connectors and board traces.
Workshop checks
- Check event indicators, connector mapping and rail stability with the installed configuration documented.
- Isolate loads and compare rail resistance before substituting a known supply.
Repair and loaded verification
If the checks support this cause, repair the shorted component or replace the supply if protection is faulty. Verification should cover cold start, CPU and GPU load, storage activity, restart and extended work.
For an assessment of your professional workstation, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.