the macbook pro 2008 8600M GT issues.

Discussion in 'MacBook Pro' started by Sebasboy, May 20, 2019.

  1. Sebasboy macrumors newbie

    Joined:
    May 20, 2019
    #1
    so i've been reading alot about these macbook pro 2008 but as far i can see somehow the 17 inch 2.5/2,6 ghz was never affected as much (or atleast really rarely)
    even on apples recall page there was no mention about a 17 inch 2.5 and 2.6 version (only the 2,4 ghz one)
    does anyone have any experiences with these failing chips?
    my 2008 2.5 ghz never exceeds 80c gpu temp (its at 70/75 max most the time) and according to apple this
    machine had never been repaired at all according to their logs
     
  2. retta283 macrumors 6502a

    retta283

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    Jun 8, 2018
    Location:
    Kingman, AZ
    #2
    I think the late 2008 17-inch uses the same 8600m as the Unibody 15-inch, which has the fixed version of the card. Failure should not be a common issue.
     
  3. Sebasboy thread starter macrumors newbie

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    May 20, 2019
    #3
    About my Mac flags it as a early 2008 and with coconut battery it said it was produced in January 2008. (might be wrong) but yeah so far this device is surprisingly fast once u toss a ssd and 6 gb ram into it.. Just gotta get a ssd raid 0 working on it
     
  4. pshufd macrumors 6502a

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    Oct 24, 2013
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    New Hampshire
    #4
    I have an early 2008 (Penryn) 17 inch which had the failure and Apple replaced the motherboard for the video failure. I do not recall the processor speed of the machine but it would have been the lowest offered. I also had three video cards replaced on 2007 MBP 15s. One of them was replaced before Apple knew what the problem was so they replaced a bad chip with another bad chip - the second failed but it was replaced with a fixed version.
     
  5. Idefix macrumors 6502a

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    Jul 10, 2012
    #5
    I had the early 15" with the 8600M, probably the last motherboard replaced under the extend warranty. There never was an updated motherboard--Apple replaced defective motherboards with the exact same motherboard. All of those motherboards, regardless of laptop size, have the potential to fail.
     
  6. pshufd macrumors 6502a

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    #6
    I heard that they might have dropped the clock speed of the GPU to decrease the chance of failure.
     
  7. Sebasboy thread starter macrumors newbie

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    May 20, 2019
    #7
    might be. (any software that works on mac that i can monitor clocks?)
    i'm looking into buying liquid metal thermal paste and trying to mod the heatsink to be connected to the bottom of the laptop to atleast disapate heat around the video card. most of my very long "gaming" sessions is done ontop of a 2 fan laptop cooling stand wich keeps the gpu sensor at 70c (i setup so both the macs fans ramp to max when they reach 70c)
     
  8. pshufd macrumors 6502a

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    Oct 24, 2013
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    New Hampshire
    #8
    I don’t know how to monitor GPU speeds.

    My kids did the thing with external fans too.

    I just elevated the laptop with spools.
     
  9. Brian Y macrumors 68040

    Joined:
    Oct 21, 2012
    #9
    I had the pleasure of working at a store during the Nvidia era!

    We never used to get as many 17s, but I guess that's because they didn't really sell that many of them compared to the 15s. My guess would be that they're slightly less prone to failure as the 17s tended to run cooler than the 15s (more space to breathe I guess), but they are still the same dodgy chips.
     
  10. pshufd macrumors 6502a

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    Oct 24, 2013
    Location:
    New Hampshire
    #10
    My 17 ran cooler than the 15s but I'm not a gamer. I did run some video editing and transcoding and the fans would kick in when I did that but my 17 never got really, really hot. I still wish that the screen worked - the screen was great as were the speakers and it worked with the old Apple Remote.
     

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9 May 20, 2019