Gaming PC Graphics Power Path: Shorted PSU output rail | Auckland
Pattern to record: The supply clicks or refuses to start until a connector is removed.
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 a cable, peripheral or internal supply component pulls one rail down.
Mains and connector safety
Stop immediately if a GPU power plug is discoloured, loose or hot. Hot-plugging internal power connectors can destroy hardware.
Workshop checks
- Inspect connector seating and temperature and log power behaviour during a controlled graphics test.
- Disconnect mains, isolate branches and measure resistance before applying power.
Repair and loaded verification
If the checks support this cause, repair the downstream short or replace the failed supply. 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.