*** Official Sager NP9877 / Clevo P870TM-G Owner's Lounge! - Phoenix 4 ***

Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by Spartan, Oct 5, 2017.

  1. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    It's a neat little tool, I was going to get the SkyPro before hardmodding my 1080. But by then, the powermod already had the indirect benefit of raising the TDP, by reporting a different resistance.
     
  2. IllusiveMan

    IllusiveMan Notebook Consultant

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    What if you have some really tight space between the SOIC8 chip and other SMD components?
    I modded mine to fit on nearly every SOIC8, like normal ones and the low profile ones, narrowed the clip pins and its more universal now.
     
  3. Meaker@Sager

    Meaker@Sager Company Representative

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    If there is no space then it makes even the in place programmer hard, I had my socket fitted by a professional.
     
  4. luisxd

    luisxd Notebook Consultant

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    What would be a "normal" undervolt for this laptop? adaptive -125mV?
     
  5. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    Really depends on the CPU and frequency.
     
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  6. luisxd

    luisxd Notebook Consultant

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    I've been playing a little bit with -120mV and stock freq. and it's working great, ibut it stills gets too hot sometimes (over 70C), I might try to go lower but -120mV feels like it's already too much lol

    How's that 2nd cpu fan mod working? does it really helps?

    P.D. It's an i7 8700K
     
  7. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    The way I test stability is Cinebench R15 or R20, depending if your games also use AVX. Setting the fans to max (fn+1) and logging temperature and stability with hwinfo64.
    Depending on what kind of performance you're after tuning it up or down, for reference a 8086K at 5Ghz runs around -120-160mV depending on silicon quality.

    The 2nd CPU fan helps with the 9th gen chips for sure, roughly 3-5c max load reduction. With a 6 core it might be better.
     
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  8. Meaker@Sager

    Meaker@Sager Company Representative

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    Stock voltages vary too, I'd expect the six core to benefit a little less from a second fan but be similar.
     
  9. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    You really need to pair it with a few other mods before you begin to reap benefits, it's kind of like speedrunning. Where you combine several known tricks in order to drop a significant chunk of time in the end. Same is true in this case, where the 2nd fan alone wont do much by itself. However, paired with a delid, liquid metal, proper fitting thermalpads and good ihs contact will have a significant temperature reduction.
     
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  10. Meaker@Sager

    Meaker@Sager Company Representative

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    That all gives you the headroom to play, a bit like cars and a stock setup vs intake and intercooler then that vs a rebuilt forged engine and larger turbos.
     
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