The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Eluktronics max 17 only pulling 100w under load

    Discussion in 'Other Manufacturers' started by Tristram13, Feb 17, 2021.

  1. Tristram13

    Tristram13 Notebook Enthusiast

    Reputations:
    0
    Messages:
    19
    Likes Received:
    8
    Trophy Points:
    6
    I started noticing stability issues and frame drops earlier this week, thought maybe system was overheating and needed to be repasted.

    I ran unigine valley, saw the gpu performing as usual in hwinfo, pulling 115w.

    The moment I load the cpu, wattage for the gpu tanks to 40, both cpu and gpu even out at around 40 watts.

    The gpu stays under 60c so its not throttling

    Laptop is in beast mode, plugged in, no power saving options selected.

    I've installed new control center, new graphics drivers, reset bios, I have no idea why its sipping power. Im in contact with support for a bios update to see what that does.

    Anyone got ideas?
     
    Mr. Fox likes this.
  2. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

    Reputations:
    37,235
    Messages:
    39,341
    Likes Received:
    70,661
    Trophy Points:
    931
    Have you tried running ThrottleStop and doing the "Disable and lock turbo power limits" thing?

    Odd that the CPU and GPU are both behaving the same way, but only when the CPU is placed under load.

    I wonder if Brother @B0B ever encountered this during any of his adventures?
     
  3. Tristram13

    Tristram13 Notebook Enthusiast

    Reputations:
    0
    Messages:
    19
    Likes Received:
    8
    Trophy Points:
    6
    Tried that throttlestop thing, no dice. I've contacted eluktronics for a bios update to see if that helps.

    To elaborate further the wattage split isnt perfectly even. The cpu takes the lion share depending on the power mode.
    Office mode:cpu 25w/gpu 60w
    Gaming: cpu 45w/ gpu 40-50w
    Beast: cpu 60w/gpu 30w

    But the whole system stays under 100w, maybe its the power brick? Has anyone experienced power brick issues before?
     
  4. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

    Reputations:
    37,235
    Messages:
    39,341
    Likes Received:
    70,661
    Trophy Points:
    931
    Yes, It could be the power brick if it is starting to fail and switching to battery power under load. Running on battery will limit clock speeds and power limits. That is controlled by the EC firmware. On the older power bricks that had an LED it was easier to tell because the LED would go black under load (meaning it was no longer outputting power). Having an AC adapter fail is not a super frequent thing, but it is not totally uncommon. I think I have had two that failed in the past decade. They can also get weak due to fatigue/wear.

    It is not likely that a BIOS update will fix the problem since it seems to be specific to your system rather than across the board.
     
    Last edited: Feb 18, 2021
  5. Tristram13

    Tristram13 Notebook Enthusiast

    Reputations:
    0
    Messages:
    19
    Likes Received:
    8
    Trophy Points:
    6
    I have my doubts about the bios update as well, but it cant hurt.

    You gave me a good idea though, I disconnected the battery to test the power brick, same stress tests, exact same behavior. If its not running off battery during heavy loads, then maybe its software related?

    Gonna make a system image and do a fresh install and see how things go.
     
  6. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

    Reputations:
    37,235
    Messages:
    39,341
    Likes Received:
    70,661
    Trophy Points:
    931
    That most likely rules out the AC adapter. If the AC adapter were bad it wouldn't likely stay running without the battery.
     
    Darkhan likes this.
  7. Tristram13

    Tristram13 Notebook Enthusiast

    Reputations:
    0
    Messages:
    19
    Likes Received:
    8
    Trophy Points:
    6
    Well I got a replacement power adapter, same behavior.

    but tell me, am I an idiot?

    Stress testing the system I'm using prime95 and Valley, valley performs fine, gpu pulls max power. Start up prime to load the cpu, and heavens fps drops in half, gpu pulls half its rated wattage, stays under 70c. Without the gpu loading the heatsink, the cpu stays under 80c, system only uses 100w.

    Am I an idiot for using prime 95 on a laptop?

    Cause I downloaded Aida64, ran cpu and gpu stress test, system pulls over 200w :confused:

    I think prime was keeping the cpu from sending enough instructions to keep the gpu running, I think I was creating an artificial bottleneck.....
     
    dmanti and Mr. Fox like this.
  8. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

    Reputations:
    37,235
    Messages:
    39,341
    Likes Received:
    70,661
    Trophy Points:
    931
    Nope, you're not an idiot. Interesting how that played out. But, it seems you learned something valuable and shared it with all of us, so that's cool. Thanks for sharing it.
     
  9. gunfighterAK

    gunfighterAK Notebook Enthusiast

    Reputations:
    0
    Messages:
    11
    Likes Received:
    9
    Trophy Points:
    6
    Hi, sorry to hijack your thread. Is it possible there is an issue with the battery?

    I removed my battery recently due to some cells bloating but now my CPU max wattage is stuck at 40W in TS and does not boost above 3ghz.
     
  10. Tristram13

    Tristram13 Notebook Enthusiast

    Reputations:
    0
    Messages:
    19
    Likes Received:
    8
    Trophy Points:
    6
    No I figured out the issue was Prime95 bogging down the cpu so much that it couldnt send enough instructions to the gpu for it run at full power, battery is fine.

    Need to know a little more, what power mode are you running in control center? Which program are you using to stress the cpu and what temps? Does plugging the battery back in fix it?(which would be weird since my max 17 ran the same with and without the battery but hey it cant hurt to try)