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Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by Spartan, Oct 6, 2017.

  1. beatlep

    beatlep Notebook Guru

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    I just got an EUROCOM Sky X7C with a i9 9900KS delidded and unlocked bios, a RTX 2080, 32GB RAM 3000MHz and 780W AC adapter.

    It came with -0.50 undervolt in the CPU and the temps went up to 90ºc or more in Cinebench.
    I undervolted to -125 and now the Turbo maintain 4.7-5.0GHz in intensive apps and the the temps are 85ºc aprox.

    Is -125 undervolt bad for the laptop for a long time?
     
    Last edited: Dec 11, 2019
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    You should have seen the reaction taking the p570wm I had through the airport. Basically like having two p750 machines in a single unit.
     
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  3. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    Well, that thing did look like a portable nuclear reactor. :D
     
  4. tps3443

    tps3443 Notebook Deity

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    The P570WM was the coolest though. I remember the good ole drool days. I couldn’t afford one at the time. And I always dreamed of owning one, and putting a Xeon 1680 V1, V2 (8) core inside. The Xeon 1600’s were unlocked until broadwell E V4’s. Or just running the 3960 or 3970X which is still decent to this day
     
  5. tps3443

    tps3443 Notebook Deity

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    The less voltage the better! My default bios has a -100 undervolt. But with stock speeds my 8086K will run with a -225 undervolt just fine.

    also, just because you are running -125 undervolt. Doesn’t mean the next guy can. Even though that is not a massive undervolt. Just an example. There is a lot of variances in these motherboards and processors.

    Reduce voltage as much as possible. As long as the system is stable of course. R15 is a decent stability test. But if your temps are 85-90C in R15 then any heavy AVX load would push temps to 100C easily. Especially BFV.

    The 9900KS is pretty much a better binned 9900K. Undervolt this chip as much as you possibly can. I’d slowly reduce -0.010 at a time then confirm stability. It’ll eventually BSOD then you’ve found the limit.

    Oh and nice laptop. These laptops are extremely resilient to abuse from heat and overclocking. I BSOD mine daily just for fun.
     
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  6. beatlep

    beatlep Notebook Guru

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    I tried -140 undervolt but windows BSOD.

    I will stay in -125 undervolt, all the games and emulators, especially the PS3 emulator that uses AVX, don't reach 90ºc and i have the fans in custom mode but very low and quiet.
    In summer i'll have to up the fans speed.

    The Eurocom bios has so many parameters that for sure i could optimize more but it's fine for now.
     
  7. tps3443

    tps3443 Notebook Deity

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    You need to undervolt the RTX2080. It works miracles on the CPU and GPU temps during a gaming load. Youll probably knock 10-12C off the GPU alone. And maybe 3-5c off the CPU

    Try Battlefield V too. It is more intense than any stress test I’ve got lol. It’ll push temps to maximum levels. If it runs that game for 1 hour then the system is stable for sure 100%.
     
  8. Meaker@Sager

    Meaker@Sager Company Representative

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    The biggest trick was the CPU power and that has been out classed by the 9900k now though.
     
  9. jc_denton

    jc_denton V̖̟en̰g̻̼̰̩͙ea̲n̪c̭e̼ ͍̘̤͓̟̤Is̙͔ ̤Mi̻̭̣͎͍ͅn̰ḙ

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    It's a binned "binned" chip at this point, lol
     
  10. tps3443

    tps3443 Notebook Deity

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    For sure. But if one still had a P570WM I’d be looking in to running a Xeon 1680 on the cheap. It still makes for a extremely powerful laptop.
     
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