This computer runs hotter than previous models. However, the normal operating temperature is well within national and international safety standards. Nevertheless, customers may be concerned about the unit overheating. To prevent an unneeded repair, you can compare a customer's computer to a running model, if available, at your repair site.
No: The computer could be overheating. The operating system will automatically reduce the processor speed if the computer starts to get too hot. Continue with the next step.
No: This computer has only one fan. If the unit feels too hot and you do not hear a fan running or cannot feel the air venting over the top of the keyboard, the fan may have failed. Proceed to the Take Apart procedure for replacing the fan.
9. Check for misplaced or inadequate thermal grease.
Each processor chip should have .01 to .12 cc (one-third of a single syringe) of grease on it.
It should look completely covered. See the Heatsink chapter of the Take Apart section for complete details.
10. Is the thermal grease applied in the right places and in the right amount, according to the service manual?
Yes: You have eliminated all the immediately known potential causes of an unusually hot unit. Proceed to the Systematic Fault Isolation step of the troubleshooting flowchart.
No: Apply the thermal grease correctly, according to the instructions in the service manual then proceed to the Verify Repair step of the troubleshooting flowchart.
For more information on the operating temperature of Apple portable computers, see Knowledge Base article 30612: Apple Portables: Operating Temperature.
Was this article helpful?