Does your fan rev-up or accelerate when coming out of sleep? I don't remember mine doing so when I first got it, but I finally got around to doing the "recommended" calibration technique and ever since then it has been doing so. I've read a similar thread from mid-2009 13" mbp owners stating the same thing, but haven't read anything about the low-end 15" (which is the only other new mbp that only has 1 fan). I just want to know if it's the norm or if there is something wrong.
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Question for 15" 2.53GHz mid-2009 MBP owners...Fan burst on wake from sleep
- Thread starter sr.pants
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I haven't installed any fan control yet. I just installed iStat so I could figure out how fast it was spinning, but it was doing so before the install.
I tried the smc reset to no avail. I suppose I could try reinstalling Leopard, but I'm not sure what that would accomplish. I'm wondering if following Apple's recommended batt calibration did something. I let the machine force itself to sleep as suggested and left it overnight in that state. Ever since then it has been exhibiting strange behavior.
I tried the smc reset to no avail. I suppose I could try reinstalling Leopard, but I'm not sure what that would accomplish. I'm wondering if following Apple's recommended batt calibration did something. I let the machine force itself to sleep as suggested and left it overnight in that state. Ever since then it has been exhibiting strange behavior.
My mid-2009 2.53 GHz uMBP does do a quick burst/rev-up of the fan after waking from sleep, then immediately ramps back down. It's always been that way for me for both sleep and a cold boot.
Strangely enough my 2.53Mhz June 2009 15" did not do it, but I just replaced it with the new 2.53Mhz with anti-glare and it does a fan burst on wake up.
Perform an SMC reset. Usually when you get weird or sudden fan action, SMC reset cures those problems. I know that it works for iMac's 90% of the time. I'd give that a try. It's not happening on Late-2008 models.
I had tried the smc reset a number of times and it didn't make any difference. The only reason I even noticed it was that it hadn't done so until after the battery calibration. I suppose it may be coincidence that it started after that.
