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Joko

macrumors 6502
Original poster
Jan 30, 2008
281
0
My fan speed gets really high when charging, sometimes up to 6000rpm, and this is without any apps running. As soon as I disconnect the charger it decreases again to 2000rpm. Is this normal?

Thanks.
 
Thanks for the reply. I have 0 programs running. It happens even when i connect it in the morning when the machine is cold. I think somewhere it has developed a hyper-sensitivity to the voltage?
 
My fan speed gets really high when charging, sometimes up to 6000rpm, and this is without any apps running. As soon as I disconnect the charger it decreases again to 2000rpm. Is this normal?

Thanks.

i'm having the exact same problem. It didn't use to happen. Its got me annoyed and worried.
 
I noticed that my mbp even if I push the cpu/gpu the fans never go above 2000 rpm.. is it supposed to go up when reaching 58C-62C?
 
My fan speed gets really high when charging, sometimes up to 6000rpm, and this is without any apps running. As soon as I disconnect the charger it decreases again to 2000rpm. Is this normal?

Thanks.

Higher fan speed when charging an MBP is normal, because the battery gets warm as it charges. I've never seen 6000 rpm in this situation, though.
 
I noticed that my mbp even if I push the cpu/gpu the fans never go above 2000 rpm.. is it supposed to go up when reaching 58C-62C?

My fans dont turn on until about 155*F (68C), if that helps. My computer gets very warm while charging, its right now at 140*F.
 
spotlight could be indexing your files. happens sometimes when i leave my computer on overnight, i just wake up to screaming fans (no pun intended). No programs but adium and transmission running. after a while it quiets down again.
 
I'm noticing that it if I plug it in with about 50% charge remaining the fans won't speed up will stay around 2000. But, if I let them run down to less than 20% battery remaining they will kick up to the mid 4000s and if I let them run down even more they will go up to 6000rpm. But I should be letting my battery drain, right? I thought that I've read that the battery likes to be used this is why I began letting it drain to the near end. Again, there are no other programs running, its definitely a charging the battery issue that causes the fans to speed up.
 
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