Gaming PC Repair
Gaming PC Overheating Issue
A gaming PC that throttles its CPU or GPU under load, shuts down unexpectedly, or runs its fans at maximum speed constantly is suffering from a thermal management problem. At Mr Gadget in Rickmansworth we diagnose gaming PC overheating issues thoroughly — identifying whether the problem is dried thermal paste, a failed cooler fan, a blocked heat sink, inadequate case airflow, or a faulty AIO liquid cooler.
Our overheating service covers CPU and GPU thermal paste replacement with high-performance compound, CPU cooler and AIO pump inspection and replacement, case fan assessment and upgrade, heat sink cleaning and contact surface improvement, and cable management for improved airflow. After the service we run a full-load stress test and verify temperatures are within safe limits across all components.
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 measure CPU and GPU temperatures under load to pinpoint the cause.
Heat sink cleaning, thermal repaste, fan inspection — everything covered.
We run a benchmarked load test and show you the before-and-after temperatures.
All cooling work is covered by a 12-month warranty.
How It Works
Our Repair Process
Bring your PC to our Rickmansworth store — we can collect locally if needed.
We measure CPU and GPU temps at load to confirm the cause.
Heat sinks are cleaned, thermal paste replaced, fans checked.
A benchmarked load test confirms the fix — you get a temperature report.
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
Under full gaming load, CPU should be below 90°C and GPU below 85°C on most hardware. We flag anything above these thresholds.
Often yes — cable management and fan direction optimisation can significantly improve airflow in a congested case.
Most are completed same day.
All cooling service work carries a 12-month warranty.
Yes — we can fit and configure most air and AIO liquid coolers.
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