[Tutorial] VBIOS Mod for Plug and Play Drivers (GT60/70 Ivy Bridges)

Discussion in 'MSI' started by DMTwo, Mar 24, 2016.

  1. astrayoutframe

    astrayoutframe Newbie

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    yep, heatsink is fine, system runs fine if only CPU or GPU get load, i tried to stress the CPU and it drew 50 watts constantly, same thing to the GPU, even though i can't check its power draw, the clock ran at its rated boost alright, only when both get heavy enough load, like AAA games, it starts to throttle like crazy, even the CPU doesn't draw its rated 45 watts power, BTW i check it using MSI Afterburner and both CPU and GPU got power limit throttle, not thermal throttle, so i dont think this is thermal problem...
     
  2. omega939

    omega939 Notebook Evangelist

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    Your setup is the same as with DMTwo. He told me that Unlock CPU + 980M= Draws too much power and heat. I don't have that throttling issues because mine is 3940xm and 970m card though still draws too much power too when playing or benchmarking dx12 games. Try to balance the tweaks you did with your cpu and gpu to lessen the heat. less heat can lessen the throttling issue you have with your setup.
     
  3. astrayoutframe

    astrayoutframe Newbie

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    I tried to decrease the CPU clock for some times before, even turned off its turbo boost completely, still got power limit throttle, the max power it drew was around 30-35 watts, GPU couldn't boost either as far as i remember, just at stock, and framerate drops even further with this settings :(...i saw some people got high graphics score at firestrike, like 10k or even better, i wonder how they did that :(
     
  4. DMTwo

    DMTwo Notebook Consultant

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    Sorry for the delay to answer you...

    This issue started now and it was working fine some time ago, right?
    Are the temps Ok, right?

    In my case my 980M worked fine for about 6 months, I wanted to replace the 3610QM by 3840QM just to have higher clocks at lower temps, I got exactly was I wanted, but after some time my laptop suffered from a strange issue, I searched a lot and I could not be able to find someone suffering of the same problem.

    To make the things short, when I was playing a very demanding games (intensive CPU + GPU usage), I got an issue like if I have unplugged the power cord, the system throttle everything and 1 second after it recognize again the AC and return everything back to normal, but this repeats over and over again, I got really pissed off because was impossible to play.
    Some time trying and tracking when and how the issue happened, I could manage to isolate the problem and even cause it on purpose.
    I bought a new AC adapter from Dell, a 240W (19,5V@12,3A), manage to connect it to the laptop and get the same issues.

    I realized that my combination was drawing too much power, maybe there are some components in my motherboard that are “tired” and should be replaced, but in Brazil I couldn’t find a repair shop able to fix this model since it is like an alien here.
    When I was benchmarking the GT60, I could force it at the maximum of each, CPU and GPU, but the issue always happened when both were active:
    CPU could draw full power, up to 50W, no issues!
    GPU without any mod, could draw 100-120W with no issue!
    However when both were active, the issue start immediately.

    Since there’s no way to limit the CPU, because even at lower clocks on higher load it gets near the power limit, on the other hand the GPU could be easily modded to draw less power.

    So the work around to fix my issue was decrease the maximum power limit of 980M, it also capped the maximum performance, but lower resolution/quality is better than not playing at all.
    After this sad history if you have something that sounds like my problem, maybe you have to decrease the maximum limit power of your 980M.

    Today my GPU is working at power limit of 50W, it gets pikes of 60W, I don’t have issues anymore.
    I also modded the GPU core voltage allowing it get more MHz without using more power.

    It was a trial and error job, was hours and hours decreasing values and testing, I believe that there’s still room for improvement, but I satisfied with the performance and stability I got.

    To show you numbers about all these changes…
    This benchmark was made after installing 3840QM and 980M, both were super stable and not limits at all:
    FireStrke 8030pts https://www.3dmark.com/fs/8834385

    This benchmark was made after the latest mod in 980M, both stable:
    FireStrike 6560pts https://www.3dmark.com/fs/15434896

    As you can see I lost a lot of performance, but no pain no gain, right?
     
  5. astrayoutframe

    astrayoutframe Newbie

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    hey @DMTwo thanks for the reply!!

    From what we got here, what i'm wondering though, is if that EC firmware really unlocked and supports more power input, 'cuz what i see here that we still get power limit throttle, which means its seems it still draws less power than it needed. Have you tried using kill a watt?? I'm planning to get one myself, just to make sure. Then if it draws power properly, i can start searching for another culprit, my guess for now is either the EC or the vBIOS, could even be both, are limiting the power draw. @omega939 gave me solution with vBIOS, gonna try it and let you guys know later.

    BTW just FYI, i tried to talk to Svet before, and what's shocking was that he told me that our laptop doesn't work with bigger AC adapter, even though there are the T19 and T24 exist...So i'm wondering, what's been unlocked in it??
     
  6. DMTwo

    DMTwo Notebook Consultant

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    Yeah, probably it’s a limit, I don’t know if it’s hardware or software, because I also have the EC controller unlocked.
    I think it’s a hardware limit, just like the limit we have in the DC-Jack, which allow a certain amount of current before start heating and destroying itself and sometimes the board.

    Yes, I have a way to measure the power and even more data, I use a GT.POWER 130A Wattmeter [https://www.ebbm.nl/Files/3/4000/4467/Attachments/Product/3psd5B2J2N9845S17920hf5438O194XB.pdf].
    It’s between AC adapter and the laptop.
    I can check in real time the power consumption, voltage, current, peak current, average voltage, total Wh and peak Watts.

    Whenever I pass 140W I got the issues, below 120W was stable with no issues at all.
    Sometimes When over 140W the laptop seems a short-circuit to the Dell AC adapter and shut it down for protection, I didn’t have this protection with the Delta AC adapter that came with my laptop, but it also give a short-circuit and reset the data of the GT.POWER Wattmeter (It only keep data while there’s power supply).

    The issue always happen when the DC input was below 18.5V, which could happen on higher loads like 7A…8A being supplied by AC adapter.
    I never saw it goes near the AC adapter rated current (Delta = 9,2A / Dell = 12,3A).

    Probably the unlock let us install unidentified hardware, and if there’s limits that we can unlock, they are already at maximum possible value.

    I only bought a new AC adapter because since the issue sounded like permanent and I didn’t have my wattmeter at that moment, I thought that my Delta AC adapter was damaged and the nearest AC adapter meeting the Voltage and current available to by in Brazil was the Dell Alienware power brick.
     
  7. astrayoutframe

    astrayoutframe Newbie

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    Tried 2 vBIOSes and here's it :

    - DMTwo's modded vBIOS : Power draw limited to 60 W, clocked lower than stock.

    Pros : Lower operating temperature.

    Cons : Lower stock clock, performs lower than what my card can do (got power limit throttle and clocked around 540 MHz when stressed, while with stock vBIOS, got around 800-900 MHz even when at thermal & power limit throttle).
    - svl7 modded vBIOS : Unlocked everything in it, i even can measure power draw from GPU-Z!! Slightly overclocked from stock, no boost clock, it runs at static clock around 1200 MHz.

    Pros : Performs the best among other vBIOSes, even at Clevo stock clock. Unlocked everything. Can measure power draw. No more power limit & thermal throttle!! (we can set it manually!!).

    Cons : Highest operating temperature compared to the other (90++ C!!!). Got driver crash with its default clock, had to underclock to Clevo stock clock to operate normally. Even though all limits (power & thermal) had been lifted, CPU still got power limit throttle (max draw 30-35 W), i think it's a hardware limit, just like @DMTwo said.
    So after messing with those vBIOSes for a brief time, i decided to revert back to stock Clevo vBIOS, that's the best vBIOS for our system, at every condition, i think, at least for now. The downside IMO is just that power limit throttle, but then again, with the limit lifted, it'll perform hotter than normal (it reached 90's C!!, while with stock still get under 90's), so for the sake of longevity, i think stock is the best, maybe i should just live with it and be happy, at least for now (still have something up my sleeve tho, but maybe later). Thanks again to our brothers in arms @DMTwo and @omega939 !!!
     
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