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    P750DM3G, thermal pads

    Discussion in 'Sager and Clevo' started by philstopford, Dec 13, 2019.

  1. philstopford

    philstopford Notebook Consultant

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    I'm curious if there are kits or general advice about appropriate thermal pads for this. I think the pads I have are not making great contact with the VRMs so wanted to look into replacing them. I've no idea where to start, though, and what might be most recommended.
     
    philstopford, Dec 13, 2019
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  2. Meaker@Sager

    Meaker@Sager Company Representative

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    Generally ic you can shave 0.5mm around you'll see about a 13c reduction in temps. I would get a 0.5mm and 1mm sheet and look at replacing the usual offenders like vram.
     
    Meaker@Sager, Dec 13, 2019
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  3. philstopford

    philstopford Notebook Consultant

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    Any particular brand, etc. that you would recommend for use? I'm completely ignorant, but Throttlestop is pointing at VRM temps as being limiting at the moment, hence my thought to replace the pads.
     
    philstopford, Dec 13, 2019
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  4. Meaker@Sager

    Meaker@Sager Company Representative

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    You want it soft and compliant to maximise core contact. Thermal grizzly pads worked well for me.
     
    Meaker@Sager, Dec 13, 2019
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  5. philstopford

    philstopford Notebook Consultant

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    Thermal grizzly worked well. I had to make somewhat taller stacks by layering - there are some significant gaps between the heatsink and the components in a number of places; it all seems to work - the VR THERMAL CORE and RING warnings/red flags are all gone from limit reasons under ThrottleStop and thermals look decent.
     
    philstopford, Dec 18, 2019
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  6. Meaker@Sager

    Meaker@Sager Company Representative

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    Just double check every single chip is making contact.
     
    Meaker@Sager, Dec 18, 2019
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  7. jc_denton

    jc_denton BGA? What a shame.

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    TG Minus pad has a thermal conductivity of 8W/mW and costs the same or more as Gelid Extreme pads (12W/mK)
     
    jc_denton, Dec 18, 2019
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  8. Prmt

    Prmt Notebook Consultant

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    I've used the ThermalGrizzly ones on all my hardware since their release. Can attest they're good quality.

    I've remounted my GPUs multiple times and the pads still look great after 2 years
     
    Prmt, Dec 19, 2019
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  9. Meaker@Sager

    Meaker@Sager Company Representative

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    Under what thickness and conditions? Without details you can't compare these figures anyway.
     
    Meaker@Sager, Dec 19, 2019
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  10. jc_denton

    jc_denton BGA? What a shame.

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    All of their thermal pads are rated for 12W/mK at any thickness. I'm sure they will provide a product spec sheet if you ask them about under what conditions. :)
     
    jc_denton, Dec 19, 2019
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  11. Meaker@Sager

    Meaker@Sager Company Representative

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    Thickness is a part of that spec, a bit like mAh without voltage.
     
    Meaker@Sager, Dec 19, 2019
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  12. tps3443

    tps3443 Notebook Virtuoso

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    I just did my P750TM1 last night. You really need to remove the entire heatsink and video card and reapply the new thermal pads and check as you go for good contact while still maintaining good die contact too. The gelid thermal pads are very dense so you cannot run them as thick as the stock ones. The OEM pads are really soft and compress really easily so you cannot do it wrong with the factory pads. You could apply them all super thick and they would just squeeze down and work ok I suppose.

    I bought the gelid 1MM,1.5MM and 2MM. It took me nearly 2 hours to get a perfect fit. And reapply all new thermal pads.
     
    tps3443, Dec 20, 2019
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  13. Meaker@Sager

    Meaker@Sager Company Representative

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    Taking the heatsink out, placing the heatsink upside down and fitment testing is the best way. It takes time but gets results.
     
    Meaker@Sager, Dec 20, 2019
    #13