Gaming PC Repair
Gaming PC Graphics Card Issues
Graphics card issues are among the most impactful faults a gaming PC can develop. Artefacts on screen, driver timeouts, black screens mid-game, or a complete loss of display output can all point to GPU problems — but diagnosing the root cause requires careful testing to distinguish GPU hardware failure from driver corruption, PCIe slot issues, or power delivery problems.
At Mr Gadget in Rickmansworth we diagnose gaming PC GPU faults systematically: stress testing with furmark and 3DMark, checking VRAM errors with diagnostic tools, inspecting the PCIe slot and power connectors, and assessing the GPU's temperature under load. We repair faulty GPU coolers, replace thermal pads, reflow solder joints on the GPU die where applicable, and advise on replacement options if the card is beyond economic repair.
Book This Repair →Common Symptoms
Do Any of These Sound Familiar?
These are the exact phrases our customers search for before they visit us — if you recognise any of them, bring your device in for a free assessment.
Walk in Mon–Sat 9am–5pm or book your repair online. No appointment needed.
Why Mr Gadget
What Makes Us Different
We use furmark, 3DMark, and GPU-Z to isolate hardware faults from driver issues.
We assess GPU temps under load and service the cooler if needed.
We give you honest advice on whether repair or GPU replacement is the better option.
All GPU repairs and cooler services carry a 12-month warranty.
How It Works
Our Repair Process
Bring your PC or just the GPU to our Rickmansworth store.
We run furmark, 3DMark, and GPU-Z to isolate hardware from driver faults.
We repair what we can and give clear advice on replacement where needed.
A final stress test confirms stability before the PC is returned.
Areas We Cover
Serving 24 Local Towns
Based in Rickmansworth, we serve customers from across South West Hertfordshire and North West London. Click your nearest town to see all available repairs and town-specific pages.
✓Rickmansworth▼
✓Watford▼
✓Chorleywood▼
✓Croxley Green▼
✓Northwood▼
✓Harefield▼
✓Chalfont St Peter▼
✓Bushey▼
✓Moor Park▼
✓Pinner▼
✓Harrow▼
✓Gerrards Cross▼
✓Leavesden▼
✓Garston▼
✓Ruislip▼
✓Kings Langley▼
✓Abbots Langley▼
✓South Oxhey▼
✓Denham▼
✓Carpenders Park▼
✓Maple Cross▼
✓Mill End▼
✓Northwood Hills▼
FAQ
Frequently Asked Questions
We run GPU-specific stress tests and check for artefacts in different driver versions. Hardware faults show consistent artefacts regardless of driver; driver issues usually respond to a clean reinstall.
We can repair coolers, replace thermal pads, and reflow solder joints on GPUs. If the VRAM or shader cores have failed the GPU typically needs replacing.
We can advise on replacement options but we don't carry a stock of new GPUs — we'll give you honest guidance on the best route.
Initial diagnosis is usually completed within 2–4 hours.
Yes — all GPU repair work carries a 12-month warranty.
Ready to Get Your Gaming PC Fixed?
Walk in Mon–Sat 9am–5pm — no appointment needed. Or book online, call us, or message on WhatsApp.
Book Online WhatsApp 07711 272860 📞 01923 934966