Mac Pro 4.1 @ Xeon W3570 - Temperatures

Discussion in 'Mac Pro' started by Zurec, Jul 8, 2012.

  1. Zurec macrumors newbie

    Joined:
    Jul 6, 2012
    #1
    Hey guys, i have spent some time hanging around in these forums to figure out how to successfully install a new cpu in my Mac Pro 4.1.

    I chose to get a Xeon W3570, as there was a good deal on eBay, near mint condition for 150$.

    Upgrade was very easy, and i was also quite happy with my results on the thermal paste. As is booted up for the first time, everything worked fine, and iStat showed my temperature around 37C° idle, 55C° under heavy load (encoding with handbrake for 15 minutes)

    But as i installed TemperatureMonitor to test my Ram temps, i was shocked at the results: Even though iStat shows 55C° for the Cpu under heavy load, TemperatureMonitor says that the cores run at 85C°-90C° !!

    Is that normal?! I have found a similar thread on these forums, a guy had similar temperatures for his cores, but nobody replied to his question till then.

    So my question here is: What are you guys getting on your stock/upgraded Models (4.1/5.1) in Temperature Monitor or a similar Program that addresses all the Sensors? Not in istat, as this only seems to show the temperature on the cpu-cooler.

    I really do appreciate your help!

    greeting from germany
    Zurec
     
  2. BenClement1978 macrumors member

    BenClement1978

    Joined:
    Sep 10, 2011
    Location:
    Antwerp Belgium
    #2
    smcFanControl temperature monitor shows 80 degrees max.

    that is when all cores are maxed out for hours.
     
  3. Zurec thread starter macrumors newbie

    Joined:
    Jul 6, 2012
    #3
    Hm, that seems high aswell but not as high as mine. I've read some other threads, and i assume 90°C is quite hot but not out of the limits.

    What Mac Pro do you have? Is it stock or modified aswell?

    Anybody else with some full-load and idle temps?

    greetings
    Zurec
     
  4. BenClement1978 macrumors member

    BenClement1978

    Joined:
    Sep 10, 2011
    Location:
    Antwerp Belgium
  5. Amethyst macrumors 6502a

    Joined:
    Aug 8, 2006
    #5
    On my system w3520 quad 2.66 under ambient 35c my cpu idle is around 48-50 and load ~ 95c, after upgrade to i7 970 at same ambient i got only 43c and load is not more than 75c, so your situation i completely believe it temp come from cpu.
     
  6. Zurec thread starter macrumors newbie

    Joined:
    Jul 6, 2012
    #6
    Well, i think i shouldn't be worried then.
    Anyway, some more load/idle temperatures on the single-cpu models would be cool. (no pun intended)

    Just to be safe.

    greetings
    Zurec
     

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