Gaming PC Graphics Power Path: Excessive output ripple | Auckland
Pattern to record: Resets or audio and display instability increase as load rises.
Identify the supply and load
Inspect the graphics card’s power path from the specified PSU cable to the GPU socket. The dedicated GPU connector carries its own power feed; PSU standby and power-good signals belong elsewhere in the system. One possible explanation is that filtering no longer keeps DC rails smooth during load changes.
Mains and connector safety
Stop immediately if a GPU power plug is discoloured, loose or hot. A simple average voltage reading can miss damaging ripple.
Workshop checks
- Inspect connector seating and temperature and log power behaviour during a controlled graphics test.
- 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 desktop video, sustained graphics load, combined load, restart and connector temperature.
For an assessment of your gaming PC, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.