Apple - Support - Discussions - Fan issues, Apple Hardware Test said ...
As I mentioned earlier, I've been having weird intermittent fan issues where the fan would shut off seemingly at random. Today, as soon as iStats report 0 RPM I rebooted and ran the hardware test. AHT reported an error while testing the logic board: 4M0T/1/40000002 Master-2470 I ran the test 4-5 more times and couldn't reproduce the same error again. It kept saying "No troubles found." Right now the mac is working fine, the fan is on, I've done PRAM and SMC reset procedure 10 times over (I swear!) and it appears to work as expected. Does anyone know what that error means ? 4M0T/1/40000002 Master-2470 ? In the MacPro discussions they say it means the fan is not working. But in my case the fan turned itself on right after that test and I couldn't get the same error anymore. What is it mean ? Should I take it to the Apple Store ?
