For systems that will not power on, shut down unexpectedly, reboot, or use parts labeled PSU, CPS, adapter or battery.
No power · shutdown · reboot · power rail fault · PSU / CPS / adapter / battery
Power boards are checked under load, repaired at component level, and verified in-system before return shipment.
How to prepare a Power / PSU repair inquiry
A clean inquiry lets Rongtao identify the board, quote faster and decide whether repair, replacement or sourcing is the best route.
What symptoms point to Power / PSU problems?
No power · shutdown · reboot · power rail fault · PSU / CPS / adapter / battery
What photos should I send?
Send clear photos of both sides of the board, close-ups of every label, the connector area and any visible damage. Include the machine brand, model and error code or symptom.
Can Rongtao quote repair without the board in hand?
Rongtao can give an initial route from photos and symptoms, then confirms final repair scope after receiving and diagnosing the board.