Workstation Power Supply: Excessive output ripple | Auckland
Pattern to record: Resets or audio and display instability increase as load rises.
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 filtering no longer keeps DC rails smooth during load changes.
Mains and connector safety
Proprietary workstation connectors must not be assumed to follow ATX wiring. A simple average voltage reading can miss damaging ripple.
Workshop checks
- Check event indicators, connector mapping and rail stability with the installed configuration documented.
- Measure ripple with suitable equipment under controlled load.
Repair and loaded verification
If the checks support this cause, replace the defective supply or failed rated filtering components. 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.