Why Your PC Overheats — and the Cheap Fixes That Help

An overheating PC throttles its own speed, shuts down to protect itself, and slowly damages components. The good news: most causes are cheap to fix.

Why it happens

• Dust. The number one cause. Dust clogs fans and heatsinks until heat has nowhere to go.
• Dried thermal paste. The paste between the chip and its cooler dries out over a few years and stops transferring heat.
• Blocked airflow. A laptop on a blanket, or a desktop shoved against a wall, can't breathe.
• A failing fan. Fans wear out and slow down or stop.

The cheap fixes

• Clean it. A few dollars of compressed air, blowing out the vents and fans, fixes a surprising number of overheating machines.
• Give it air. Hard flat surface for laptops; a few inches of clearance for desktops.
• Repaste. Fresh thermal paste is a few dollars of material and makes a real difference on older machines.

When it's more serious

If it still overheats after cleaning, you may have a failing fan or a cooler that's come loose. Those are quick fixes for us but worth doing before the heat damages something expensive.

A tune-up includes a full internal cleaning and thermal check. If a fan or cooler needs replacing, we'll quote it before doing the work.

Still stuck? We can help.

We're in Dawsonville and we fix computers for people all over North Georgia — Cumming, Dahlonega, Gainesville, Canton, Jasper and beyond, plus remote support anywhere. Diagnostics are a flat $24.99, credited toward the repair if we fix it, and free if we can't. (706) 203-2563 or start a repair request.