P775DM3-G Overheating Woes

Discussion in 'Sager and Clevo' started by droidmahn, Mar 23, 2017.

  1. droidmahn

    droidmahn Notebook Consultant

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    Are these normal readings?

    No undervolt + repaste + Delidded CPU (The throttle drop was from lowering the voltage under load)
    [​IMG]

    Undervolt + Repaste + Delidded CPU
    [​IMG]


    Just for giggles I popped it in my desktop and chilled along at 65c 100% load. So I think I can safely eliminate my delid being the issue

    Here's pics from my repaste. I used Gelid Extreme and Arctic's Articleaner kit as I usually do.
    Before
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    After
    [​IMG]
    [​IMG]
    Could this be a defective heatsink? I'm really at a loss here...
     
  2. droidmahn

    droidmahn Notebook Consultant

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    I'm going to jump in to a Mass Effect Andromeda session and record the temps there as well. Will post if needed
     
  3. droidmahn

    droidmahn Notebook Consultant

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    Ouch 94c max on cpu 91 max gpu this is with undervolt
     
  4. bennyg

    bennyg Notebook Deity

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    Your heatsink looks a bit furry. You cleaned that up right?

    What did you use under the IHS when you delidded?
    Edit: nvm saw you tested it in desky (WC/AIO could still hide a mildly dodgy delidding pasting mind you IMO if you're going to do it use liquid metal)

    Those kinds of temps are not right for a proper delid. You'd expect thermal throttle in AVX stress from the factory. Not with good paste and a delid. Your paste job looks ok too so that's not the issue.

    Any air gaps around the grill/fan join?

    I just noticed you have the GPU box checked. Are the temps.similar when you're not loading up the GPU and adding heat to CPU over the shared heatpipes?
     
    Last edited: Mar 24, 2017
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  5. John@OBSIDIAN-PC

    John@OBSIDIAN-PC Company Representative

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    What is your undervolt value?

    Here´s my results:
    [​IMG]

    Notice it is @ 4.5Ghz + GTX 1080 @ 100% usage, OVERCLOCK fan profile.
    Max temp is around 92ºC and not what you see in TS.

    At 4.2GHz (which is your clock, you should stay around 85ºC)
     
    Last edited: Mar 24, 2017
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  6. droidmahn

    droidmahn Notebook Consultant

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    I used Liquid Ultra for the IHS

    There is a gap but it came that way from the factory. It's covered by a black plastic adhesive flap. I noticed a blue liquid when wiping down the heatsink... makes me think I've got a leak somewhere. Couldn't get a picture of it

    CPU runs fine when stressed by itself. Right around 66c-70c. And yes I de-furried the heatsink lol.

    I'm running at 4.2 with a -150mv undervolt cache and core. When there's no GPU load I hit a max of 70c

    [​IMG]
     
  7. Prostar Computer

    Prostar Computer Company Representative

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    I would suggest using a line down the center on the GPU, and not using a line on the CPU, but rather the X/cross application method. The spread from the mounting pressure doesn't look good in those pictures. Have you noticed a big difference between cores on the CPU?
     
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  8. droidmahn

    droidmahn Notebook Consultant

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    Not really. Usually within 2-5c from eachother. I don't personally think that the issue is with the paste. Definitely not after my last job.
     
  9. bloodhawk

    bloodhawk Derailer of threads.

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    If possible, next time you take the heat sink off take pictures of both - the heat sink and the contact surfaces. Will help in diagnosing the issue much faster.

    For now I would suggest not using CLU if you know there is a gap.
     
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  10. droidmahn

    droidmahn Notebook Consultant

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    Sorry? What is CLU?

    And the only gap is between the heatsink and fan. But when I get home later tonight I will repaste (again) and take pictures of the spread.
     
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