[MBP] Fans always at max since Logic Board replaced

Soldato
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14 Dec 2005
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As per http://forums.overclockers.co.uk/showthread.php?t=18141781 my MacBook Pro had the Nvidia 8600M GT fail on Monday, and yesterday I got it back from having the Logic Board replaced under warranty.

I gave the Apple Store my password so they could login and check everything was working.

When I turned on for the first time the clock had reset to 01:30 (obviously it went to 00:00 when they replaced the logic board).
Also it didn't automatically join my WiFi. When I told it to connect it remembered the password.
Also there was no screensaver set.

Anyways, that's just background.



Within about two minutes of booting it up both fans increase to 6000RPM and it sounds like it's going to take off. It doesn't ever slow back down.

This noise / fan-speed is like it used to be when doing video encoding and it's resting on my jeans, but since the Logic Board replacement it's doing it with just Safari (no flash) open and sat on a desk.

To my touch it's not running hotter than it used to.

iStat Pro is correctly picking up eight probes, and to my eye none are alarming:




Any ideas?

A colleague told me that when he opened up his Mac Mini before he forgot to connect one cable back causing his fans to always be on max.
 
Just did an SMC reset too (power button for five secs without mains or battery), was a struggle to get the battery out as they hadn't put the RAM door back on properly :rolleyes:, but that hasn't fixed it either :(.

 
When I had my Mac Mini open I once forgot to reconnect the fan speed controller, fans came out at full pelt. Presumably they've done the same thing?

That's what the guy I share an office with at work said...

The only thing I'd say against that is that this starts at a normal 2000RPM and then over the space of a few minutes speeds up.

Below is minute by minute of it, with Safari being the only application open (and no flash :p), with the first screenshot being 1 minute after boot.









EDIT: 10 minutes with a whole one tab open (the iPad thread)
 
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Argh. To quote someone else in the room "You are now cleared for take off :p".... :mad:




Looks like I'll be seeing a Genius at lunch on monday then...


EDIT: Just turned it on after being off for a few hours, and within 5 minutes:
 
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