Non-Retina cMBP 15" 2.6 GHz Ivy Bridge Temps

Discussion in 'MacBook Pro' started by Rectified^, Jun 27, 2012.

  1. Rectified^ macrumors newbie

    Jun 15, 2011
    Everyone's been saying that Ivy Bridge/Kepler should be running cooler -- however, my temps are stuck at 65C just idling with a display plugged in (on discrete GPU). If I go integrated GPU, I get around 55-60C idling. My 2010 MBP idled around 50C.

    Even with the fans maxed at 6200 using smcFanControl, using an external display and CPU under 5% utilization, my temps are 57C.

    Perhaps these Ivy Bridge MBPs have an overdosing of thermal paste? I'm a bit hesitant to dig it apart to find out, even though I have a fair amount of experience building and tinkering with desktops.
  2. skitzogreg macrumors 6502


    Oct 31, 2007
    These temps are well within normal operating ranges.

    Look, compressed in a solid brick of aluminum, that's pretty damn good.
  3. ugp macrumors 65816


    Jan 7, 2008
    Inverness, Florida
    When encoding a video with Handbrake the CPU maxes out at 100C for me and drops to 95-98C once the fans are running full blast. The fans are not noisy at all.

    When idle I will go anywhere between 45C and 55C.
  4. canadianrider macrumors newbie

    Jun 21, 2012
    are you allowing from proper venting? do you have something running in the background that's using up a lot of CPU power? if I'm idling or even doing light web browsing on the 2012 cMBP my temps are always below 50C. If i use smcfancontrol and bump the fans up to 2400 they're below 40C.

    your temps are what I get when bootcamped in win8 but definitely not osx
  5. mykelala01 macrumors 6502


    May 17, 2009
    The temp looks normal. As long as you don't experience shutdown your mac is fine.
  6. ljx718 macrumors 6502

    Dec 13, 2008
    My rmbp is avg low to mid 30's while in use. Pretty crazy
  7. koyoot macrumors 603


    Jun 5, 2012
    Normal temps. But in Fact they could be much, much lower. Changing the thermal paste would be nice idea.

    I'm wondering if changing Thermal Paste on Retina Macbook Pro would make a difference...
  8. VFC macrumors 6502a

    Feb 6, 2012
    SE PA.
  9. ugp, Jun 28, 2012
    Last edited: Jun 28, 2012

    ugp macrumors 65816


    Jan 7, 2008
    Inverness, Florida
    Here are my idle temps for reference.

    Added a picture after letting Minecraft run for 10 minutes or so maxed out.

    Attached Files:

  10. magbarn macrumors 68000

    Oct 25, 2008
    IB has been confirmed to be running hotter than SB temp wise in desktops as the die is much smaller which results in a much smaller surface area to give off heat. However, the TOTAL heat output is less. A match may be hotter than a oil room heater, but the room heater will heat up the room faster.
  11. Rectified^ thread starter macrumors newbie

    Jun 15, 2011
    This is actually a pretty good point. That would make sense -- power consumption is down on Ivy Bridge, but so is area and thus power density could go up, making the chip hotter.

    Hmm. Still, though, 65C idle seems insane. God forbid I max my CPU. I do have it in clamshell mode, but in the past that would only raise temps 5C or so.
  12. dusk007 macrumors 68040


    Dec 5, 2009
    With the desktop it has also been confirmed that the TLP Intel put between the chip and the heat spreader is really poor.
    Just by switching that paste that guy managed to drop the temps from 83 to 63 C using the same cooler.

    Given that mobile CPUs don't have a heat spreader and Apple is responsible for the TLP and they most likely use the same they always did, mobile Ivy Bridge shouldn't have any of the heat issues the desktop chips are plagued with.
    Smaller die area may have some effect but in the past the decrease in power consumption more than offset that. A 45nm chip was much cooler than 65nm. Those chips run almost the same clocks and have little to no architecture difference.
    It think it is just that the closer they get to those too small process nodes; they will just get consistently worse. 22nm just isn't that great even with TriGate Transistors. I wonder how they would turn out without those. I don't think it is just the size of the die.
  13. pandamonia macrumors 6502a

    Nov 15, 2009
    The new process isnt mature. they are leaking electrons everywhere which means you have to increase voltage which increases heat. Wait till mid cycle and they will have a new stepping which improves on the current process and then the full benefits of 22nm will be shown.

    Extensive testing on Xtremesystems shows this to be the case. Sandy was a very successful CPU but Ivy still has a few kinks
  14. magbarn macrumors 68000

    Oct 25, 2008
    Yeah, IB kinda reminds me of a mini-Prescott. Nowhere near as bad, but similar in that the newer process ran hotter than the previous Northwood P4 cpus.
  15. Exana macrumors regular

    Mar 15, 2011
    Ambiant temps : 23°C
    Ambiant noise level : 32 dBA

    Open terminal then 4x : yes > /dev/null &
    iStat Pro after 1 hour :

    MacBook Pro Core i7 2.6 GHz 2012 :
    CPU : - °C
    CPU Heatsink : 52°C to 50°C
    Enclosure base : 32°C to 28°C
    Enclosure base 2 : 32°C to 28°C
    Enclosure base 3 : 31°C to 28°C
    GPU : 60°C to 61°C
    Heatsink B : 57°C to 57°C

    Right fan : 4889 to 5350 rpm
    Left fan : 4885 to 5350 rpm

    Noise level at ~50 cm from screen (head position) : 37.2 à 38.6 dB(A)

    MacBook Pro Core i7 2.2 GHz early 2011 :
    CPU : 86°C
    CPU Heatsink : 55°C
    Enclosure base : 27°C
    Enclosure base 2 : 27°C
    Enclosure base 3 : 27°C
    GPU : 61°C
    Heatsink B : 57°C

    Right fan : 6064 rpm
    Left fan : 6079 rpm

    Noise level at ~50 cm from screen (head position) : 41.7~41.9 dB(A)

    MacBook Pro Core i5 2.53 GHz 2010 :
    CPU : 86°C
    CPU Heatsink : 56°C
    Enclosure base : 34°C
    Enclosure base 2 : 34°C
    Enclosure base 3 : 30°C
    GPU : 61°C
    Heatsink B : 56°C

    Right fan : 3800 rpm
    Left fan : 3800 rpm

    Noise level at ~50 cm from screen (head position) : 33.8~33.9 dB(A)

    Ivy Bridge did not heat much more than earlier Sandy Bridge and fans are running slower.
  16. ixodes macrumors 601


    Jan 11, 2012
    Pacific Coast, USA
    Damn You Apple!

    What's a "cMBP" ?

    OK, I'll admit I know :)

    Just pointing out the stupid way Apple names the new machine.

    Is it a:

    Retina MBP
    Non-Retina MBP

    Or ???

    Flippin Apple :D
  17. pandamonia macrumors 6502a

    Nov 15, 2009
    It doesnt run any hotter it just doesnt run any cooler at the minute.
  18. pacman7331 macrumors regular


    Apr 5, 2006
    Yea i waz hoping the Ivy Bridges were gonna run cooler and is why I initially decided to wait since last janurary for the update. I think Apple was expecting this as well which is why they designed the RMBP the way it is, perhaps they wanted it to be a "laptop" instead of a "portable" for once since the G4s?

    Or not...

    Oddly Intel used glue instead of solder on the 3770s and IB desktop chips, which increases their heat output running hotter than sandy bridges (at least when overclocked). It appears the same issue is applicable to the mobile processors. So RMBP runs at similar max temps as the cMBP dispite its slimmer form.

    Im just gonna get a laptop cooling pad.

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