Overheating 5870 in Windows

Discussion in 'Mac Pro' started by Melvin Frohike, Dec 1, 2010.

  1. Melvin Frohike macrumors newbie

    Joined:
    Jul 5, 2008
    #1
    Playing Crysis in BootCamp with the Radeon 5870 i noticed some occasional graphic errors, with spiky artifacts appearing on the screen. I didn't think too much of that until i got the same thing in Metro 2033. There they were much more frequent and were only appearing after a couple minutes of play.

    Using the Ati Catalyst Center i checked the temperature and fan speed. Temperature was 71 °C and fan speed was at 21%. When setting the fan speed manually to a higher number, the gpu stays cool and i can play without errors.

    So it appears, there is an issue with the automatic fan control, where it doesn't rev up high enough.

    I don't wan't to set a manual value though, as it is too much most of the time and get's really loud.

    I use the card in a 2008 Mac Pro.

    Has anyone else encountered or solved this problem?
     
  2. nasabaer macrumors member

    Joined:
    Apr 2, 2009
    #2
    I have played through crysis and warhead on my mac pro 2010 with the ati 5870 at high settings.
    there was absolutely no problem with overheating.

    i would say that you have a faulty card. 71° is not a temperature were an 5870 should run into problems.
     
  3. dave-tx macrumors member

    Joined:
    Aug 8, 2007
    #3
    My 5870 was working perfectly for about a month, but last night developed artifacts and other video weirdness in both Boot Camp and OSX. Machine would freeze up after less than 5 minutes of use. I swapped back in my old 2600 and everything was good again. Going to the Apple Store for a return/exchange tomorrow.
     
  4. dave-tx macrumors member

    Joined:
    Aug 8, 2007
    #4
    As a followup for reference purposes, there was a little difficulty getting my faulty 5870 returned. My mistake was contacting tech support (thinking that since I'm still under Apple Care for a few months, that would be the best way to go). Since the 5870 isn't officially supported on the early 2008 Mac Pro, they were unable to order me a replacement. Took about an hour on the phone plus a visit to the local Apple Store to reach this conclusion.

    Called the Apple sales department and within 5 minutes was given an RMA and had a new card within the week.

    Moral of the story: Call the sales department first for returns. I'll only call tech support on an issue that is, indeed, fixable.
     

Share This Page