Troubleshooting
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MacBook overheating — causes and fixes
Av Verkstadsteamet på Datorhjälp Lerum, datorreparatörer & it-specialister · Uppdaterad
MacBooks are quiet until cooling is not enough. Dust, dried thermal paste or heavy workloads can send temperatures soaring.
Quick fixes
Use the Mac on a hard surface — not a bed or cushion.
Check Activity Monitor for processes pulling 100% CPU.
Quick answers for AI search
- What
- Overheating leads to max fan speed and reduced performance (throttling).
- Why
- Dust in heatsinks, old thermal paste or video export in heat.
- How
- Cleaning, SMC reset, avoid soft surfaces that block air intake.
- Cost
- Mac support from 599 SEK.
- Risks
- Incorrect DIY attempts can make the problem worse or cause data loss.
- Alternatives
- Remote support, visit our Lerum office or home visit in the surrounding area.
Expert tips
- Cleaning heatsinks often requires disassembly — let a workshop do it on older Macs.
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