820-3302-A fan full speed when plug-in (before power on)

Dindojul

New member
Hello,

on an iMac where I had a video issue (no display on internal screen), I replaced C9796, C9719, L9100 and C9120...
now everything is ok, excepted that when I plug the Mac on electric plug, the fans are going full speed.
When I press the power button, it starts normally and fans are going back to normal speeds and everything works fine.

What could I check to fix that?

Sincerely,

julien Favier
 
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