7800X and H115i

Discussion in 'Overclocking & Cooling' started by Keithw1975, Oct 12, 2018.

  1. Keithw1975

    Keithw1975 n00bie

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    I built two 7800X systems at the same time. One has an H115i cooler and the other has a Dark Rock 4 Pro. The one with the H115i does have an RTX 2080 in it, which might add some heat to the case.

    That being said, the H115i idles around 35 deg C and under a 50% load hits temps around 70-75 deg. The other machine with the Dark Rock 4 Pro, which only has a single fan in the middle of the cooler, under the same 50% load runs about 58-64 deg.

    When I installed the H115i, I used the thermal paste that was pre-applied.

    Does it sound like I have a contact problem with the water block or is the Dark Rock a better cooler?
     
    Last edited: Oct 12, 2018
  2. hititnquitit

    hititnquitit Limp Gawd

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    its hard to say without knowing fan speeds/case and cooling config. if everything is the same then i would say yes you should remount and add new tim. the best way to test would be in the same rig. that way you eliminate any variables.
     
  3. Keithw1975

    Keithw1975 n00bie

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    It seems that my water block is just barely contacting the CPU. I pulled off the black and the thermal paste had only made contact on about 2/3rds of the CPU. I applied more thermal paste, as a short-term fix and my temps have dropped by about 6-8 degrees. I can't really see a way to fix this permanently though without bending the mounting tabs.
     
  4. hititnquitit

    hititnquitit Limp Gawd

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    ive heard alot of people having issues with making aio blocks make good contact. do you need a specific backplate for it maybe? or possibly use washers to make up the distance?
     
  5. cyberguyz

    cyberguyz Gawd

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    For asetek-type blocks, (those that have circular cooling heads, I don't much care for the thin stamped metal mounting brackets they use. That said, I haven't had any personal problem with them. Most AIO coolers use this style of bracket because most vendors (like corsair, cooler master, thjermaltake, etc) are selling you coolers with rebranded asetek AIO pump/blocks.
     
  6. pendragon1

    pendragon1 [H]ardForum Junkie

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    yeah try the washer thing. add one to each corner on top of the hold down bracket then screw it down tight. you dont have the bracket on backwards do you? cause that will give you a gap too.
     
  7. Interitus

    Interitus [H]Lite

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    I had the exact same problem going from an H115i / 3770K to Ryzen with the H115i. I don't know if it was backplate / pressure related or a convex / concave IHS to plate issue or what, but the H115i was almost worse than the stock cooler on the Ryzen. Probably should have looked into it more, but the H115i was already a few years old so I just replaced it with an H115i Pro and gambled on it fixing the problem. No joke, load temps dropped over 20 degrees from in the 70's at stock fully loaded to barely touching the 50's. I do remember that when I took the H115i off of the Ryzen, it gave me the impression that there was strong center contact and not so much moving outward from dead center on the CPU.

    I know it's not the same setup, but I've had others experience similar issues on newer CPU's in general with the older Corsair AIO's, both AMD and Intel. Kinda wondering if it's a change in the IHS or something. I put that same old H115i on a recycled Sandy Bridge build for a family member and its performing just fine.