PC Power Supply Repair Sheffield
Test and replace a faulty desktop PC power supply unit - pre-built, gaming PCs and custom builds all covered.
Signs of a Failing PC Power Supply
The power supply unit (PSU) is one of the most commonly overlooked causes of PC problems. A failing PSU can cause symptoms including random shutdowns, instability under gaming load, PC refusing to turn on, clicking or buzzing noises from the case, or BSOD errors that seem hardware-related but change when the PSU is swapped.
PSU failures are also a safety concern - a faulty unit can deliver incorrect voltages that damage other components including the motherboard, CPU and GPU. We test the PSU under load using specialist equipment rather than just a simple paper clip test, ensuring accurate diagnosis.
See our full desktop PC repair page for all faults we cover.
What's Included
- PSU load testing under real conditions
- Rail voltage and stability check
- PSU replacement (if failed)
- Cable routing and connection check
- Post-replacement system stability test
Repair Pricing
- PSU diagnosticFree
- PSU replacement 550–650 W (parts + labour)from £55
- PSU replacement 750–850 W (parts + labour)from £65
- PSU replacement 1000 W+ (parts + labour)from £79
- Modular PSU cable replacementfrom £19
Prices depend on parts & work required. You'll get a clear quote before anything starts.
Free Diagnostics —
Pay Only If You Proceed
We check it, explain the issue, quote you — you decide. No obligation.
- Clear fix plan & quote before any work
- Same/next-day turnaround on common issues
- 1-month guarantee on all work
- Honest, jargon-free advice
What Customers Say
5.0 on Google
"Came to my house, took it with him and dropped it off 3 hours later after stripping it down and cleaning every bit. No more overheating!"
Poppy Cheetham
"Matt has always been patient and explained everything in a clear way. I don't know where I would be without his expertise."
Zachary Rhodes
"Called for my computer repairing because it wasn't turning on. They ran me through a few things and managed to fix it over the phone for nothing."
Jonathan Wright
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Need PC Power Supply Repair Sheffield?
Most enquiries answered & quoted same day. No jargon, no surprises.
Free diagnostics·No fix, no fee·Sheffield & South Yorkshire