Fans that ramp up loudly under load are normal — that's them doing their job. Fans that are loud constantly, even when idle, usually mean your PC is working harder than it should to stay cool.
Clean out dust
Dust buildup on fans, heatsinks, and vents is the single most common cause of rising temperatures over time. A can of compressed air every few months goes a long way.
Check your airflow setup
Cases need a clear path for air to flow in and out. Cables blocking vents, or fans all pointing the same direction without a clear intake and exhaust, can trap heat inside.
Reapply thermal paste if it's been years
The thermal paste between your CPU and its cooler dries out over several years and becomes less effective at transferring heat. This is a more advanced fix but can meaningfully lower temperatures.
Check your case's fan configuration
Confirm your case fans are actually spinning and connected — a fan that's plugged in but not spinning, or set to a very low speed in software, won't do much cooling.
Give it some breathing room
Cases with limited or restrictive front panels can trap heat even with good fans. Placing your PC somewhere with open space around it also helps more than people expect.
If cleaning and improving airflow doesn't bring temperatures down, your cooler may be undersized for your components, or a fan may have failed — both are worth having assessed if you're not comfortable diagnosing it yourself.
Still having trouble?
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