9900K Runs HOT!

Discussion in 'Intel Processors' started by JCNiest5, Mar 9, 2019.

  1. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Okay, I'm using a Corsair H100i V2 and my 9900K is idling at 48 C - 50 C, and goes way up past 100 C when Prime95'd. I don't believe it's inadequate thermal paste, but something else. I use Artic Cooling MX-4 thermal paste. What to check?
     
  2. fullvietFX

    fullvietFX [H]ard|Gawd

    Messages:
    1,785
    Joined:
    Sep 1, 2004
    What's your ambient temperatures? Is the cooler seated properly? What fans are you running?
     
  3. Furious_Styles

    Furious_Styles [H]ard|Gawd

    Messages:
    1,376
    Joined:
    Jan 16, 2013
    Pump failing? If you've checked that it's seated properly that's all I can think. Idle should be in the 20-30s.
     
  4. Master_shake_

    Master_shake_ [H]ardForum Junkie

    Messages:
    9,379
    Joined:
    Apr 9, 2012
    Is the pump going full speed?

    Are the fans?

    Is the radiator warm to the touch?
     
  5. 5150Joker

    5150Joker 2[H]4U

    Messages:
    3,146
    Joined:
    Aug 1, 2005
    H100 won't cut it for that cpu, especially if you're tossing prime 95 at it. I built a custom loop for mine.
     
  6. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Stock fans that came with the H100i. The four thumb screws are all tight evenly, I have to believe it's seated properly. The fans all rev up, don't know how to confirm if the pump is at full speed. I can feel the air getting warm. I just think the 9900K just runs hot. Maybe need a better, different AIO cooler?
     
  7. fullvietFX

    fullvietFX [H]ard|Gawd

    Messages:
    1,785
    Joined:
    Sep 1, 2004
    48C is still way too toasty for idle. Check my sig I idle around 32C. My room temperature is about 21C.
     
    Armenius likes this.
  8. pendragon1

    pendragon1 [H]ardForum Junkie

    Messages:
    13,907
    Joined:
    Oct 7, 2000
    plug the single wire fan speed plug into a fan header to get the rpm. thumb screws should be as tight as you can get them by hand. double check your mounting. yes you might need better cooling.
     
  9. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    It's winter here in MN. Not sure what else to do except getting a better cooler. What do you recommend?

    I'll double everything. Maybe I will try Artic Silver 5 and see if it makes any difference.
     
  10. fullvietFX

    fullvietFX [H]ard|Gawd

    Messages:
    1,785
    Joined:
    Sep 1, 2004
    I recommend using Grizzly Kryonaut it's what I use. Also my set-up is a push/pull one.
     
  11. GoldenTiger

    GoldenTiger [H]ard as it Gets

    Messages:
    18,808
    Joined:
    Dec 2, 2004
    Probably just didn't mount it evenly. I'd pull the cooler off and try again with a fresh paste. You can confirm the paste job then too as to whether it was bad or not.
     
    Armenius and legcramp like this.
  12. legcramp

    legcramp [H]ardForum Junkie

    Messages:
    10,821
    Joined:
    Aug 16, 2004
    Cooler is fine it's 100% your mounting.
     
    Armenius and Solhokuten like this.
  13. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    I took the heatsink off, thermal paste was evenly spreaded across the IHS. Anyway, I tried Artic MX-2 this time. Now idling at 40 C to 43 C. So, better result. Still, not as good as reported elsewhere (or in here). Better AIO cooler is the next step?
     
  14. fullvietFX

    fullvietFX [H]ard|Gawd

    Messages:
    1,785
    Joined:
    Sep 1, 2004
    What case and motherboard are you running?
     
  15. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Case is a Thermaltake Levl 10 GT White Snow Edition, but it's open. The board is a Gigabyte AORUS Z390 Pro Wifi.
     
  16. pendragon1

    pendragon1 [H]ardForum Junkie

    Messages:
    13,907
    Joined:
    Oct 7, 2000
    checked the pump speed yet?
     
  17. Nightfire

    Nightfire [H]ard|Gawd

    Messages:
    1,771
    Joined:
    Sep 7, 2017
    A 240mm AIO should be sufficient at stock speeds. Getting shafted on the silicon lottery is not out of the question as was the case with Admiral Equinox in his first 9900k.

    Compare the minimium voltages needed for stability on less demanding test like Cinebench to see if this is the case.
     
    Armenius and pendragon1 like this.
  18. pendragon1

    pendragon1 [H]ardForum Junkie

    Messages:
    13,907
    Joined:
    Oct 7, 2000
    ^^ that's what I was gonna suggest next, check the cpu voltage. make sure the mobos not giving it too much on auto.
     
    Armenius and Nightfire like this.
  19. Freebyrd

    Freebyrd n00b

    Messages:
    5
    Joined:
    Sep 1, 2017
    I got high temps on my X370 motherboard because the default fan speed (& voltage fed to the pin header) for the pump was quiet or low I think. Try checking your mobo bios for fan voltage or speed setting. Set it to max if you can to see if that helps.
     
  20. UZ7

    UZ7 Limp Gawd

    Messages:
    170
    Joined:
    Dec 5, 2008
    Check if you have MCE (Multi Core Enhancement) on.

    The new versions of Prime95 uses AVX so of course its gonna get toasty.

    If going from 48-50C to 40-43C just from MX-4 to MX-2 then theres probably some mounting issues, maybe its not on tight enough or do a proper criss-cross when tightening.
     
    Armenius, brentsg and Solhokuten like this.
  21. Naieve

    Naieve Gawd

    Messages:
    741
    Joined:
    Jan 20, 2010
    Is that at stock voltage or are you overclocking

    These 9900k's remind me of the old gtx 480's I ran in tri-sli.

    You could warm your house with it if you are overclocking.
     
  22. NKD

    NKD [H]ardness Supreme

    Messages:
    7,715
    Joined:
    Aug 26, 2007
    don't use prime 95. I have used AIDA64 and Realbench and my system is rock solid at 5ghz. It stays in the 70s with thermaltake ring flow 360. Now these use AVX as well. But fire up prime95 those avx instrcutions 95c instantly lol. I am not sure what they run, but it really is designed for max heat it seems. I am used to realbench and aida 64 and they have never failed me in diagnosing stability. But new prime 95 just feels like its desinged to toast your cpu then anything.

    Also check voltages your idle seems high. mine is in the 30s. But either way prime 95 is going to set it on fire pretty quick.
     
    Armenius and XBarbarian like this.
  23. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Stock speed. No OCing, but CPU Multi-Core Enhancement is Enabled. Pump RPM seems to be going around 800 in the BIOS. CPU VCore is around 1.236v something.
     
    pendragon1 likes this.
  24. CAD4466HK

    CAD4466HK [H]ard|Gawd

    Messages:
    1,218
    Joined:
    Jul 24, 2008
    That's an awful low speed for that pump to be running at. Should be around 3000-4000RPM
     
    Armenius and pendragon1 like this.
  25. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Will check how to speed up the fan.
     
  26. KedsDead

    KedsDead Limp Gawd

    Messages:
    128
    Joined:
    Jul 22, 2016
    Check for air bubbles in the caught in the pump.. I had this problem when I ran my h100i a couple times after moving my pc. All I had to do was gently tap the water lines and rotate the case little. Easy to detect, one hose will be warmer than the other.
     
  27. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    No go. I set the fan to 100% and it's still hot as the sun. Not sure what else to try other than getting a different cooler.

    Using AIDA64 Stability Test and the temp also went the through the roof! I had to stop the test within a few seconds because temp went above 100 C.
     
    Last edited: Mar 10, 2019
  28. pendragon1

    pendragon1 [H]ardForum Junkie

    Messages:
    13,907
    Joined:
    Oct 7, 2000
    you need to get the pump moving properly. try another header and use bios or speedfan or something to make sure you got the right one and then set it to max.
     
    Armenius and CAD4466HK like this.
  29. Joust

    Joust 2[H]4U

    Messages:
    2,925
    Joined:
    Nov 30, 2017
    This. Get the pump moving MUCH faster.
     
    Armenius and CAD4466HK like this.
  30. Denpepe

    Denpepe [H]ard|Gawd

    Messages:
    1,181
    Joined:
    Oct 26, 2015
    Pump could be defective, but in any case check that all wires are connected correctly, when I installed my AIO on my CPU a couple weeks ago I messed one connection up which made 1 fan run full tilt and the other did barely anything, checking the connections was a quick fix.
     
    Armenius likes this.
  31. Aluminum

    Aluminum Gawd

    Messages:
    671
    Joined:
    Sep 18, 2015
    Make sure you are using a header that gives pump enough power and is running at full speed, ideally a 1.5A or better one. Often on dual-type headers there is a bios setting to select PWM vs Full-DC/Pump/WC modes. AIO Pumps should be full speed all the time anyways because they are usually underpowered wimpy things, dial in your profile with fan control instead.

    On my (now yanked) shittermax TR coolers the reported rpn difference between the fan header in right mode and not was 3000 vs 1800.
     
  32. SavageThrash

    SavageThrash Limp Gawd

    Messages:
    243
    Joined:
    May 16, 2007
    The pump should be moving much quicker. Install the h100i software and get it chooching. When the h100i fails you will know. Pump output shaft wears through the bushing and the pump eventually seizes. You get a lot of warning when the pump starts to shine.
     
    Armenius likes this.
  33. Spartacus09

    Spartacus09 [H]ard|Gawd

    Messages:
    1,055
    Joined:
    Apr 21, 2018
    For comparative I just picked up a 9900k as well, but using a H110i GTX, during my testing at stock to get baseline stability I'm sitting at about 31-33c on average in 74f (23c) ambient and it drops as low as 26c with it on 1.25v (it could likely go lower but I'm not aiming for stock).

    Something to note, my OC Bot recommendation greatly increased by pulling the latest BIOS (4.9ghz max to about 5.2ghz max), something to consider.
     
    Armenius likes this.
  34. JCNiest5

    JCNiest5 2[H]4U

    Messages:
    3,786
    Joined:
    Apr 25, 2005
    Getting a new case, a darkForce I5 Phantom and a Corsair H115i RGB Platinum and will put them together and see how it goes. Got a CoolerMaster MasterBox MB500 TUF Alliance, but it's way too small. The front mounting area, supposedly can take a 240MM radiator, but I couldn't even install my H100i V2 on it without doing some clean up.
     
  35. Kajun614

    Kajun614 Limp Gawd

    Messages:
    148
    Joined:
    Jul 7, 2016
    Man, temps like that I could heat my room in the winter.
     
  36. Colonel Sanders

    Colonel Sanders 2[H]4U

    Messages:
    3,885
    Joined:
    Sep 26, 2001
    When I built my 9900k setup, I used the almost 7 year old H100 (the original version of it) from my old PC on it. I had the 9900k at stock to start with. At first it seemed decent - idle temps were around 31-34c. Then I went to my go-to stress testing tool, Prime95. I was shocked when the temps blew through the thermal throttling limit almost instantly. I thought for sure the pump wasn't seated right or I didn't apply the thermal paste (using MX-4) evenly. I tried again and was 100% positive it was mounted perfectly, but there was no change to temps.

    I thought maybe enough of the coolant may have evaporated out of my H100 being as old as it was (I've heard this is an issue over long periods of time with AIOs.) I then picked up an H115i and tried that. Idle temps were definitely better (down to 26-28c) and P95 testing brought it up to 78c or so. Still really hot compared to what I was used to, but obviously a HUGE difference from the old H100. Btw, when I installed the H115i, I just used the thermal paste it comes with pre-applied to the plate (and cleaned off the old stuff from the CPU, of course.)

    The main thing that was a real learning experience for me was testing with Prime95 with the 9900k vs my previous CPU, a 3570k. Basically Prime95 is fucking insane with how it's set up. Between heavy AVX usage and massive voltage request, at 5.0ghz it still blows through thermal throttle limits after only a few seconds. I'm finding that other tools like Cinebench and Realbench are more realistic. Where P95 would throttle my CPU within 15 seconds, the other tests show a max of around 85c.

    Any way you slice it though, the 9900k is just obscenely hot. It's a challenge for any cooler at stock clocks, let alone overclocked.
     
    Armenius likes this.
  37. Armenius

    Armenius I Drive Myself to the [H]ospital

    Messages:
    18,560
    Joined:
    Jan 28, 2014
    MX-2 cures quicker than MX-4, but other than that the MX-4 is the better paste. You probably just mounted the pump better this time.
    Pump sounds like the culprit, as others said. Let us know how the H115i does.
     
  38. Admiral Equinox

    Admiral Equinox Gawd

    Messages:
    592
    Joined:
    Jan 18, 2007
    Hi friend.
    Rig in my sig is my second 9900k. My first 9900k was RMA'd because of similar issues with temps like yours.
    I bought it specifically to get it to 5ghz, but it was just so fucking hot. At idle I was at 49-50c. Bewildered really, didn't seem right.
    Didn't want to settle for that so packed it up for #2.

    Here are the temps on my second 9900k @ 5ghz just doing desktop shit at 1.34v
    https://imgur.com/a/jvdeSEy

    Night and day difference. Using Thermal Grizzly Kryonaut.
    Here's a pic of my rig if you want an idea of cooling.
    https://imgur.com/a/hkgumgw

    Nice choice on the h115i Platinum, this is a fantastic cooler.
     
  39. Kajun614

    Kajun614 Limp Gawd

    Messages:
    148
    Joined:
    Jul 7, 2016
    Your temps are pretty low from what Ive seen. NICE!!
     
  40. TahoeDust

    TahoeDust Limp Gawd

    Messages:
    494
    Joined:
    Dec 3, 2011
    9900k 5.1GHz 1.33v w/ no AVX offset. Memory 4200 17-17-17-37. Chip has been delidded with copper IHS installed and is under a Heatkiller IV block on a loop with a EKWB D5 and Hardware Labs GTX 420mm+280mm.

    24hrs Prime95 Blend w/ AVX...peaked at 260w+:
    https://imgur.com/TUSX1Il

    Pics..
    https://imgur.com/a/bz2KYUv