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Temperature Rises with audio

79445 Views 600 Replies Latest reply: Mar 27, 2010 12:59 AM by svkrzn RSS
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Pierre Cross Level 1 Level 1 (10 points)
Currently Being Moderated
Nov 9, 2009 4:56 PM
Hi!

When you ear some music in your machine the temperature rises from 87F to 136F.

Some people refer this to iTunes but i tested with other audio software and is the same thing.

ex: Cog, VLC, etc...

Is this normal????? I know this processor can take high temperatures but in the past the Dual G5 burns up in two years of work and i don't want to buy another Mac Pro in two short years...

Gaming in BootCamp stresses a lot less the CPU temperature... odd don't you thing?

Regards
Mac Pro Quad 2.66GHz 12 Gb 2 Discs 640Gb in RAID0, Mac OS X (10.5.8), 2 Monitors ACER 24"
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 10, 2009 12:32 AM (in response to Pierre Cross)
    Hi Pierre,

    Yes, this has been talked about to death,... with everyone waiting to see what the next OS upgrade is going to change, if anything. So far the temps reported have come close to the danger range but rarely reach or surpass it.
    I understand your concern though, I had a 2.7 LCS and a Quad 2.5 LCS. The 2.7, and I know of many other cases, had heat issues that led to an early death.
    I don't like it when my Macs run hot anymore.

    Nor do I like Flash sites, (I found this site long ago because it revved my 2.7 to the max), that can apparently take +-390% of my CPUs output, as seen in Activity Monitor.
    http://www.sheridanandco.com/

    So there are at least two anomalies that Apple should be looking into, imho.
    Waiting for 10.6.2 is making me blue...
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 10, 2009 1:55 AM (in response to Samsara)
    Waiting for 10.6.2 is making me blue...

    Oops... it's out! We shall see...
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
  • abains Calculating status...
    Currently Being Moderated
    Nov 10, 2009 5:28 AM (in response to Pierre Cross)
    God help those that ordered i7 iMacs if Apple does not solve this soon! I doubt the iMac has the thermal stability of a Mac Pro.
    Mac Pro (2009) Quad Core 2.93, ATI4870 / 17" (2009) Macbook Pro / 15" (2008) MBP, Mac OS X (10.6.1)
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 10, 2009 7:26 AM (in response to abains)
    After 10.6.2, iTunes on my Mac seems to run cooler, but it's not a dramatic change. And for me the longer iTunes plays music, the higher the temps climb overall. Have to admit the scores overall are more consistent than I remember before. No core is reading very much out of line with the others. Before I remember the readings were all over the place.
    I'd have to say that excessive heat with iTunes still seems to be an issue in 10.6.2. It's better, but too little a change to what I'd like to see. They still need a double digit drop if they are going to match CPU activity and reflect how little they are actually doing.
    Other audio apps? Don't have them, but I wouldn't be surprised if they remained the same with 10.6.2. as well. I'd like to hear differently though.

    Flash,... as far as I can see... not addressed at all.
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
  • Hazmee Calculating status...
    Currently Being Moderated
    Nov 15, 2009 11:12 PM (in response to Pierre Cross)
    Hi,

    I am new here. I am experiencing the same issue with my Mac Pro 2.66 Quad (09). Temperature shoots up to 65 - 70 deg C when listening to audio or viewing Flash content. CPU activity is 99% idle. More heat means more electricity is being used else where is the heat coming from. A very annoying 'feature' of the Mac Pro.

    More details: My ambient temp is 31 deg C. CPU under normal load (image processing and office work) besides audio work or browsing Flash content is 48 deg C.

    Called AppleCare for technical support. Reset PRAM and whatnot did not fix the problem. I suspect they are unaware of the issue.

    My current so called 'fix' is to turn off TWO cores and disable Hyperthreading via Processor Preference Panes. Once I did that, temperature maintains at 48 - 53 Deg C max.

    I hope Apple solves this issue soon.
    Mac Pro 2.66 Quad (Early 2009), Mac OS X (10.6.2)
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 16, 2009 2:03 AM (in response to Pierre Cross)
    Actually, that wasn't originally from the macrumors forum. It was from here and I was the one who contacted Dr. Bresink.

    There's more to it though it I think, the problem seems only to affect Nehalems, regardless of what Mac OS is used. That it's not a problem in Macs while running Windows is completely baffling to me. I've given up thinking about it, it's been so long now since this phenomena was first reported.
    And heck, 10.6.2 didn't even address the much reported Flash-CPU issue, so who knows what is on Apples priority list.
    I say use ones Mac the way it came and the way you want. If these things turn out to be a problem, we know who to blame. And to be fair to Apple, these things may not be as dire and Mac threatening as they sound. But,... I will not accept another G5 circumstance where the computers start to wear out after 3 years.
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
  • Zouglas Calculating status...
    Currently Being Moderated
    Nov 16, 2009 4:20 AM (in response to Samsara)
    Temperature goes from 34c to 48c in just 2 mins, then to 66c in 15mins just playing an mp3, then at 37mins crashes. This is with just iTunes open. Machine currently in for repair so I hope this situation can be sorted out...
    Mac Pro 2.93 Quad, Mac OS X (10.6.2)
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 16, 2009 5:09 AM (in response to Zouglas)
    Your Mac actually crashes?

    The shutdown point for the Mac is when the cores reach about 95c. Yours is failing way before that. My own temps are in the 80's when playing a song in iTunes.

    I wouldn't be surprised if Apple gave you a brand new one.
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
  • Samsara Level 4 Level 4 (1,320 points)
    Currently Being Moderated
    Nov 16, 2009 12:28 PM (in response to Pierre Cross)
    Apple need to give some logical explanation. Don't you think?

    I do. I also think that world peace is the way to go,... look how well that's coming along.

    If Apple is coming out with new MPs soon and they don't have the same problems, I think that's about all we'll see from them regarding an explanation. Of course Apple will see from me and others a demand for our money back.
    MP 8-core 2.93GHz, 24GB RAM, GTX 285, 3xOCZ120, 3xIntel80, 4xVR300, Mac OS X (10.6.1), 30" HD Cinema Display, 20" Cinema Display, iPod touch, G5Quad (JIC)
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