Mac Pro loud fan noise after 2-3 hours
Hi. I bought a Mac Pro quad 2,66 with 5 Gb ram for about a year ago. Everything works well, but after 2-3 hours the Exhaust and CPU fan starts to raise and when checking iStat it stays at about 3000 rmp for Exhaust and CPU. The noise is bad...This happens even if the Mac is not in use (any programs running) The temperature inside the Mac is low - about 30 degrees (Celcius) and the fans do not slow down until i restart the Mac. I have tried the Reset of the SMC. There is no difference after resetting the SMC....
Any suggestions??
I have been dealing with a Mac Pro for the past 6 months in my sound studio having a constant vacuum from the fan. I assumed this was normal and a purchasing oversight I made. It was far from silent, infact it was so loud it sounded (on recordings) like a car was constantly in the room idling. Very annoying.
I took apart the mac pro thinking there would be maybe dust (as people suggested) in my video card - as that appeared to be where the sound was coming from. I removed the card, and there wasn't really a build up of dust.
I did however put the card back into a slot (it was on the bottom slot closest to the ram - maybe it couldn't breath?) and turned it back on and for the first time since October 08 I have the computer I paid for and not an oversized noise box.
So there is obviously something dodgy about this ATI card Apple. Its actually really quite annoying and dealing with a nuscense noise for 6 months on a computer you drop thousands and thousands for is just ********.
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Try resetting the System Management Control to see if the fan noise ceases. Also, make sure there are no obstructions to the fan as well as the portable is on a flat surface when in use.
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
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