optical drive fan problem
I have a mid 2007 iMac EMC 2133. It all works fine except sometimes the optical drive fan runs at +4000rpm (checked using iStatPro). I ran the Apple Hardware Test and it showed this error:
4SNS/1/40000000:TOOP
I replaced the optical drive sensor cable and I have re-set the SMC and for a while I thought it brought the speed down, although it re-occurred later whilst running a few applications and then during the Apple HWT.
Haven't had much luck getting exact info on this (or any similar) error code.
Is this fixable? Or a serious issue please? Machine is out of warranty of course.
Thanks
Cette question est-elle utile ?