Another Coolermaster U3 & Bottom Tray Mod

Discussion in 'Alienware M15x' started by kosti, Mar 12, 2016.

  1. kosti

    kosti Notebook Virtuoso

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    I was bored and was feeling brave so I cut out the panel :D Haven't run extensive tests yet but this makes a huge difference. Pain in the butt to do though. P1020262.jpg

    Also, I noticed air flows better when the cooler is lifted a bit more in the back. This allows more clearance between the fans and your desk.

    P1020264.jpg
     
    Last edited: May 10, 2016
    JAY8387, Daniel1983, iunlock and 3 others like this.
  2. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    That's awesome. I cannot tell from the first photo because it is so black, but do you have some kind of square plates on top? If so, can you give a link to them?
     
  3. kosti

    kosti Notebook Virtuoso

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    Funny I was just watching a video you made on YT comparing Thermal Grizzly Conductonaut and some other pastes. Good stuff, I really enjoyed it and I'm planning on finally trying one of these liquid metal pastes.

    Anyway, back on topic: I got some aluminum mesh fan filters but found them to be way too obstructive in terms of air flow. I ended up removing the aluminum mesh screen and using the metal brackets to cover the imperfections in the cutout I made of the panel. I'm going to be ordering some sponge filters or is there something else you recommend which filters out dust but doesn't block too much air.

    Edit: I got filters like these:

    [​IMG]
     
  4. alienisme

    alienisme Notebook Geek

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    I'm using conductonaut on my CPU, it only reachs sub 70 on fulload with the environmental temp of >30 degree but I don't know why my CPU gets too hot on idle (about over 60 degree and even 70 degree) with default fan profile
     
  5. kosti

    kosti Notebook Virtuoso

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    Did some tests with the further modded U3. I first did some tests with the 920xm at stock clocks but the difference with the cooler working was only about 5C per core so it's not that significant. Overclocked though is another story:

    Ambient temp: 22C

    CPU: 920XM overclocked to 3.2GHz with Throttlestop (24T on all cores)
    Test Used: Prime95 for 10 Minutes
    Monitored with: HWInfo64
    Thermal Paste: Gelid GC Extreme


    Test 1:
    - Modded Bottom Tray Installed
    - Cooler Fans OFF

    FAIL- System shuts off after less than a minute (max temp observed 98C on Core 2)


    Test 2:

    - Modded Bottom Tray Installed
    - Cooler Fans at FULL blast

    Temps after 10 Minutes:
    Core 1: 89C
    Core 2: 91C
    Core 3: 90C
    Core 4: 90C


    Test 3:
    - Bottom Tray Removed
    - Cooler Fans at FULL blast

    Temps after 10 Minutes:
    Core 1: 81C
    Core 2: 84C
    Core 3: 82C
    Core 4: 83C

    Without the cooler, the system reached tjunction max after less than a minute, and with the cooler the max temps were high but steady with the modded bottom tray and very acceptable with the bottom tray removed.
     
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  6. kosti

    kosti Notebook Virtuoso

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    Just wanted to post my temps using Thermal Grizzly Conductonaut liquid metal paste on the CPU:

    Ambient temp: 21C

    CPU: 920XM overclocked to 3.2GHz with Throttlestop (24T on all cores)
    Test Used: Prime95 for 10 Minutes

    Test 1:

    - Modded Bottom Tray Installed
    - Cooler Fans OFF

    Temps after 10 Minutes:
    Core 1: 91C
    Core 2: 93C
    Core 3: 90C
    Core 4: 94C

    *Same setup and testing method before Conductonaut resulted in system shutdown in just under a minute

    Test 2:
    - Modded Bottom Tray Installed
    - Cooler Fans at FULL blast

    Temps after 10 Minutes:
    Core 1: 81C
    Core 2: 83C
    Core 3: 82C
    Core 4: 85C

    Test 3:
    - Bottom Tray Removed
    - Cooler Fans at FULL blast

    Temps after 10 Minutes:
    Core 1: 75C
    Core 2: 76C
    Core 3: 73C
    Core 4: 78C

    BIG difference using Conductonaut as you can see :D
     
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  7. deadsmiley

    deadsmiley Notebook Deity

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    Holy Thermal Paste Batman. That's a huge difference. I may have to try that on my 880M. Thing still runs crazy hot. Thanks for doing this test and posting your results @kosti
     
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  8. kosti

    kosti Notebook Virtuoso

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    I am debating about applying this stuff on the GPU. As it is now I am happy with Gelid GC Extreme on my GPU. Temps don't get past the mid to high 70s after hours of gaming and always idles around 29C. That's with an overclocked and overvolted m6000. The 920xm overclocked really benefits from liquid metal paste though.
     
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  9. kosti

    kosti Notebook Virtuoso

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    Temps started going crazy lately on the CPU side. With 10-20% CPU usage, my 920xm was reaching the mid to high 70s on stock clocks. Decided to open her up and check the paste. It had hardened almost entirely. There were a couple of tiny wet globs here and there on the die and heatsink, but the rest was completely hardened. When this stuff hardens, it doesn't want to come off too. I tried Naptha, Alcohol and even Acetone and it would not come off the heatsink. Long story short, I had to wet-sand my heatsink with 800 grit sandpaper to remove the paste and the stain it leaves on the copper.

    Back on Gelid for now. I heard this stuff hardens after a while but I first installed it in May, and was traveling during the summer for 5 weeks so in reality it was only used for around 2 months.
     
  10. deadsmiley

    deadsmiley Notebook Deity

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    Sounds like a lot of hassle. Sorry you are having trouble...

    Sent from my overpriced Galaxy S6 Edge +
     
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