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  1. #1
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    Strix RTX 3090 Waterblock

    Hello, I'm new here and have a question about your experiences with different waterblocks from different customers.
    Last summer I started to built a custom loop for the first time. I use a Lian Li PC O11 Dynamic XL ROG with GPU vertical mouting Kit and Lian Li Distroplate Co-work with EKWB. A waterblock which is cooling CPU and VRM area is mounted at the Strix X570 E Gaming. Normally I have only one choice...to buy the waterblock from EKWB plus seperatly sold backplate. This one is very expensive...but not as much as the graphics card itself
    Is anybody satisfied with this cooler or would you recommend a different one?
    2nd question is about radiator. for the gpu I need a 2nd 360mm radiator. At the bootom of the case will fit a 35mm thick radiator plus the hight of the fans under
    the vertically mounting kit for the gpu. If I do some modification on this kit there will fit a 60mm thick radiator plus fan. What do you think? Does it matter which one I use? Do you expect a difference in temperatures that justifying a lot more work to do?

    Best regards

  2. #2
    ROG Guru: Orange Belt Array HK-47's Avatar
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    I have been using the corsair block for the 3090 strix and get great temps and the card was very easy to install. I did replace the thermal paste that come on the card with kryonaut. I am running a 420mm & 280mm x 30mm radatiors with d5 pump and temps never go past 50c with a 30c idle loop temp. My temp delta is 10c on gpu. My vram temps normally sit around 60-70c while gaming. I run my card at with a 110/500 offset and my boost is normally around 2070 while gaming @ 480w. Going with thicker radiators you wilk need higher rpm fans to move the heat out of them. This is something to consider when going with thicker radatiors. The higher fan speed will come with increased noise. I run my 420 radiator in push pull and my top mounted 280 is pull. Both are setup as intake with one exhaust fan at the back. I think the general rule for radatior size is 120mm per 100w.

    As for what block you pick I think they all give around the same performance, give or take a few deg of temp delta. I would pick one that you like how it looks to be honest. The vram in my opinion don't need water cooling unless you plan on extreme overclocking. The cards were obviously designed to operate with just the cooling from the back plate.
    -Desktop-
    Asus Crosshair VIII Dark Hero / AMD 5800x / 32GB Corsair Dominator Platinum RBG (CMT32GX4M4C3600C18) @ 3800 /2x Sabrent 1TB Rocket NVMe 4.0 (Raid 0)/ 1x Samsung 860 Evo SSD / Corsair AX1200 PSU / ASUS Strix Helios Case / Corsair HydroX Custom Loop D5, CX7, XG7 420+280 Rad/ Asus Strix 3090 / Asus PG35VQ Ultrawide Monitor / Corsair Commander PRO 3x ql120, 4x ql140 fans / Edifier 1850DB Speakers + T5 Sub /
    Asus Theta 7.1 Headset

  3. #3
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    Okay thank you. 50 degrees while gaming sounds good. The Helios is also a very big case. I build a custom PC with that at my work a few days ago . Did your gpu are stable at 2070MHz while gaming or is it more variable. Atm my gpu clock varies between a high 18xxMHz up to 1995MHz.

    My first radiator , which is actually cooling only the processor (R7 3700X @4300MHz) is 45mm thick. It's mouted at the upper side of the case. 3 Alpenfön Wingboost 3 fans exhaust the warm air. 3 fans of the same type are mounted at the bottom of the case to blow fresh air in it. At least one of them is at the backside, also to exhaust. I think I will decide to buy another 45 mm thick radi for the bottom. It will require the modification but then it will look equal to the upper side .
    It's impossible to mount a push/pull combination with a thicker radiator. My big case has not enough space for it.

  4. #4
    ROG Guru: Orange Belt Array HK-47's Avatar
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    The GPU is stable at those clocks but it depends a lot on the game for how far it varies from 2070. Some games it will dip down to 2045 or so but its mostly at 2070. Here is a quick clip of playing Star Wars battle Front 2 from earlier today so you can check out the temps and and clock speed. This game doesn't load up the GPU to max 480w but still you can get an idea.

    https://youtu.be/40FD3azZ7CI

    Those radiator sizes and layouts should work just fine. I think you will be happy with it.

    Here is a few pics of how I have my setup.
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    -Desktop-
    Asus Crosshair VIII Dark Hero / AMD 5800x / 32GB Corsair Dominator Platinum RBG (CMT32GX4M4C3600C18) @ 3800 /2x Sabrent 1TB Rocket NVMe 4.0 (Raid 0)/ 1x Samsung 860 Evo SSD / Corsair AX1200 PSU / ASUS Strix Helios Case / Corsair HydroX Custom Loop D5, CX7, XG7 420+280 Rad/ Asus Strix 3090 / Asus PG35VQ Ultrawide Monitor / Corsair Commander PRO 3x ql120, 4x ql140 fans / Edifier 1850DB Speakers + T5 Sub /
    Asus Theta 7.1 Headset

  5. #5
    New ROGer Array
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    Hello again ,
    I finally decided to buy the EKWB Block and a 2nd 360 radiator with 45mm thickness. While building, cutting, bending I got an idea to include a little wheel that indicates the flowing of water.
    Now the build is ready and I'm happy with it how it looks. My GPU now has temps depending by games between 66-72 degrees celsius. I think this is ok but the temps of the memory sometimes climb over 100 degrees for instance at Assetto Corsa Competizione VR with HP Reverb G2. This HMD had a very high res an need a powerful GPU. Assetto with unreal 4 engine is the most hungry vr application as far as I tried.

    What are your memory temps with watercooling?

  6. #6
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    Here are some impressions from my completed work...
    Miniatura de Adjuntos Miniatura de Adjuntos 20211007_140833.jpg  

    20211007_140847~2.jpg  

    20211007_140856.jpg  

    20211007_140917~2.jpg  

    20211007_140944.jpg  

    20211007_141020~2.jpg  


  7. #7
    New ROGer Array
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    Asus ROG Strix 3090 (non-oc variant) + AlphaCool Eiswolf 2 (modified backplate with my own active cooling, see https://forum.alphacool.com/threads/...-padding.2809/ for details on my mod) / https://hardforum.com/threads/asus-....cores.2017452/ for my rig.

    GPU is overclocked: +175 Mhz GPU / +250 Mhz Memory / 137% TDP

    Idle temperatures:
    CPU Tdie: 44.5c
    CPU Die avg: 35.7c
    Asus Chipset: 58.5c
    GPU: 25c
    Hot Spot: 32c
    Memory Junction (VRAM): 32c
    VRM: 29c

    Stresstest: 30 minutes Unigine SuperPosition @ High Textures / 3840x1600

    Stress / Load (Non-OC) Peak Temperatures:
    CPU Tdie: <not measured>
    CPU Die avg: <not measured>
    Asus Chipset: <not measured>
    GPU: 56.1c
    Hot Spot: 66.2c
    Memory Junction (VRAM): 66c
    VRM: 48c

    Stress / Load (OC) Peak Temperatures:
    CPU Tdie: 70.8c
    CPU Die avg: 66.6c
    Asus Chipset: 64.8c
    GPU: 65.6c
    Hot Spot: 76.3c
    Memory Junction (VRAM): 72c
    VRM: 53c

    3DMark scores (OC):

    TimeSpy: Overall: 19538 GFX: 21431 CPU: 13023 - https://www.3dmark.com/spy/26080542

    TimeSpy Extreme: Overall: 10647 GFX: 11060 CPU: 8789 - https://www.3dmark.com/spy/26078840

    Port Royal: GFX: 14949 - https://www.3dmark.com/pr/1430299

    Click image for larger version. 

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    Last edited by KrazeyKami; 02-07-2022 at 08:16 PM.

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