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Precision 7530 & Precision 7730 owner's thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by Aaron44126, Jun 27, 2018.

  1. DerMarkus

    DerMarkus Notebook Geek

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    Side note: If you lift the back of the notebook by ~2[cm] (e.g. by a book) the CPU (idle) temperature is some degrees lower.
     

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  2. TriBeard

    TriBeard Notebook Evangelist

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    What changes did you make to the thermal pads for the VRMs to improve their fit? It seems to have lowered your core differentials too, which is my issue.
     
    Last edited: Dec 19, 2018
  3. DerMarkus

    DerMarkus Notebook Geek

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    Well, I placed custom ~2[mm] thermal pads directly on the 6 CPU VRM controller. These additional pads have direct connection to the pad mounted on the heat sink.
     
  4. TriBeard

    TriBeard Notebook Evangelist

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    So you added/stacked pads under the stock ones that were already there? Or did you replace the stock ones
     
  5. DerMarkus

    DerMarkus Notebook Geek

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    I left stock one on heatsink and placed custom pads on vrm. So yes they are stacked.
     
  6. TriBeard

    TriBeard Notebook Evangelist

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    I was confused, I thought we were talking about the components to the right of the CPU, not the ones between the CPU and the GPU. I was able to find some 1.5mm thermal pads that I intend to try out tonight to see if they help my uneven core temps. I also picked up one of the graphite thermal pads and I might cut that down and try it on the CPU if the thermal pads on the VRMs don't fix my uneven core temps. I'll post an update later tonight with my findings.
     
  7. epsilon72

    epsilon72 Notebook Consultant

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    Can anyone comment on the 7730’s p3200 vs p4200? Is the increase in price worth it for the amount of extra power you get?
     
  8. TriBeard

    TriBeard Notebook Evangelist

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    So here's the update from the graphite thermal pad.

    1) Overall, temps were much more uniform across the die with no more than a 3-5 degree difference between cores.
    2) HOWEVER, temps were about 10 degrees warmer overall, with the laptop running about 98 degrees while running cinebench.

    I still am not sure what DerMarkus placed the thermal pads on as nowhere that I could see was lacking any/was improved by adding some additional pad.
     
  9. DerMarkus

    DerMarkus Notebook Geek

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    I marked the CPU VRMs and the heatsink thermal pads with red boxes:
     

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  10. Regular_Ragnor

    Regular_Ragnor Notebook Consultant

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    Whether it's worth it is something only you can decide for yourself. For me, it was.

    Raw computing power jumps from 5.3 TFLOPS to 7.6 TFLOPS. The application I earn my living with is very sensitive to this.
     
    epsilon72 and Ionising_Radiation like this.
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