After a couple years of intensive use of your mac portable it's a good thing to open it and dust off the internal components with canned air. Dust accumulation on electronics can lead to overheating issues specially if you use the portable in a dusty environment or if you have a cat/dog. Since the fan unit is not an expensive part you can also replace it with a new one or drop a tear of sewing machine oil under the seal at the top of the fan. To complete the job you can also remove the heatsink and apply fresh thermal paste. Use a good quality one like the Arctic Silver 5.
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After a couple years of intensive use of your mac portable it's a good thing to open it and dust off the internal components with canned air. Dust accumulation on electronics can lead to overheating issues specially if you use the portable in a dusty environment or if you have a cat/dog. Since the fan unit is not an expensive part you can also replace it with a new one or drop a tear of sewing machine oil under the seal at the top of the fan. To complete the job you can also remove the heatsink and apply fresh thermal paste to the processor. Use a good quality one like the Arctic Silver 5.
After a couple years of intensive use of your mac portable it's a good thing to open it and dust off the internal components with canned air. Dust accumulation on electronics can lead to overheating issues specially if you use the portable in a dusty environment or if you have a cat/dog. Since the fan unit is not an expensive part you can also replace it with a new one or drop a tear of sewing machine oil under the seal at the top of the fan. To complete the job you can also remove the heatsink and apply fresh thermal paste. Use a good quality one like the Arctic Silver 5.