[Alienware 17R4 / 15R3] - Disassembly + Repaste Guide + Results

Discussion in '2015+ Alienware 13 / 15 / 17' started by iunlock, Oct 22, 2016.

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Will you be repasting your 17R4/15R2?

  1. Yes.

    263 vote(s)
    75.4%
  2. No.

    19 vote(s)
    5.4%
  3. Maybe.

    67 vote(s)
    19.2%
  1. Lexo

    Lexo Newbie

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    Just joind up to say thanks for the repaste guide. Was going to repaste anwyay when I bought my 15r3 but the guide pointing out the heatpad issue was great.

    Temps out of the box (system bought April 2018) were hitting up to high 80's in some games on the CPU and around 75 on GPU.
    After a repaste high 70's on CPU, then I found this guide and did a little undervolting, custom fan profile and replaced some of the pads. NOT the ones on the CPU section however.
    With mine being a later production it seems the 0.1mm pad over the fets was also used for the VRM directly next to them, none of the 0.5mm stuff.

    So thermal grizzly cryonaut (not risking liquid metal on a device thats moved every day), slight bend on the top tripod arm and replacing the 1mm pads on the GPU section only, the very slightly twisting the heatsink at the CPU side here are my temps now. Core temps nice and close to each other now also, previously were up to 15c apart.

    7700HQ (0.1v undervolt on CPU and Cache) with a GTX 1060

    [​IMG]
     
  2. Falkentyne

    Falkentyne Notebook Virtuoso

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    Easy way to check this vs known examples:

    Disable 2 cores. May or may not be possible with editing the boot configuration in windows (was possible back in windows 7).
    I don't think this will work properly if you just try to run 4 cores 8 threads in prime95. Seems like the entire CPU is still being used at partial usage. Not good. You want windows to boot with only 4 physical cores active. It's important for Throttlestop to physically only detect 4 cores (8 threads) only.

    Set your CPU to 4.5 ghz 1.18v manual (static) voltage. Manual, not adaptive.

    Run prime95, @ 4.5 ghz, DISABLE AVX (In prime95 local.txt folder,add this string: CPUSupportsAVX=0)
    Run prime95 small FFT. Should say type 0 FFT, pentium 4 FFT or core 2 FFT, whatever. If it says AVX or FMA3 then you didn't edit local.txt properly at all.
    Use maximum fan speed.

    Post power draw and temps and HWinfo screenshot.

    Wattage should be between 75-80W, VID should show between 1.180v-1.205v.

    If you don't get this result then your VID is not being reported properly.
     
    Vasudev and Niarus like this.
  3. rinneh

    rinneh Notebook Virtuoso

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    Somethings piss me off to no end......

    yesterday received thermal grizzly thermal pads. Ordered 1mm according to the requirements of the original schematic. Was already thinking they where quite thick compared to the original 1mm pads which where indeed a tad thicker than the 0.5mm pads. Anyway I proceeded with the thought process they might compress a lot. Well was I wrong. They are just 2mm thick no matter what even though the package says 1mm. Measured them. The thing is cant really complain to Amazon abotut i because my Japanese is simply not good enough for that. wasted about 25 bucks on pads.

    Have 0.5mm pads everywhere now and there is good compression at the GPU vrm's but I dont see any compression happening at the GPU ram chips.....

    But cant find any decently priced 1mm thermal pads from other brands anywhere in Japan.

    The CPU and GPU temps are good though. 82c for the highest core and 79c on the lowest core and 70c for GPU.. They keyboard deck also doesnt feel that hot so I would assume no part is heating up excessively now. But still this doesnt give me a peace of mind in any shape or form.
     
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  4. a_Criminai

    a_Criminai Notebook Enthusiast

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    Did the laziest thing ever and it ended up working. I repasted my 17 R4 using a 138w heatsink instead of the 85w heatsink and when i was finished I found that I had a 20c core differential. Not feeling like doing a full repaste tear down again, I half took it apart just enough to where I could get my hand on the heatsink. I unscrewed and bent the problematic arm fairly hard. Then I half unscrewed the 2 bottom CPU screws. I re screwed the arm first and then re tightened the 2 bottom screws. After putting my system back together my core differential is now about 5c and it lowered my package temp 15c. I'm happy with the result and also happy not needing to take apart the motherboard again lol.
     
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  5. robprov

    robprov Newbie

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  6. iunlock

    iunlock 7820HK @ 5.1GHz

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    Looks great. Glad it helped.
     
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