Kaby Lake i7-7700k + H100i v2 ?s

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  1.    14 Mar 2017 #1

    Kaby Lake i7-7700k + H100i v2 ?s


    Hi there,

    Just got a new build put together...been using AMD for quite some time now, before that Intel, now back to Intel. It has been many generations since I ran Intel so I am not too familiar with temps and all...I know the 7700k runs warm but I have a few questions about my setup currently. See below.

    - Firstly, I mounted radiator to front due to my open shroud GPU, bringing cold air from front instead of exhausting hot air from radiator and a good portion of the GPU's hot air through top
    -I have 3 Noctua 140mm fans, 2 on top and 1 at back all exhausting...this may be an issue with -/+ air pressure? Maybe switch to a H115i to help with this?
    -For front mounted radiators is push or pull better? I also may have mounted it improperly, see pics, fans are on one side of mounting bracket and radiator is the other
    -Ambient temp is 23-25C, idling temps hover between 31-33C, when running Prime95 I can hear the H100i fans turn up and feel air being pushed through radiator however temps hover between 72-78 and sometimes skyrocket to 89ish, but only for a breif moment before dropping down back to the 75C range. Are these temps right? I feel I may have over tightened my CPU screws and maybe used a tad too much thermal compound....or maybe I'm just over thinking this whole thing.

    https://1drv.ms/f/s!AqOCHQW1MOLxsynI5KQ2Yxj9Kkqv - this is a full link, it keeps breaking though. Images of build and setup in here.

    Any advice/guidance would be greatly appreciated!
      My ComputerSystem Spec

  2. Dude's Avatar
    Posts : 12,424
    Windows 10 Pro X64
       14 Mar 2017 #2

    cwburns32 said: View Post
    Hi there,

    Just got a new build put together...been using AMD for quite some time now, before that Intel, now back to Intel. It has been many generations since I ran Intel so I am not too familiar with temps and all...I know the 7700k runs warm but I have a few questions about my setup currently. See below.

    Congrats on the new build.

    - Firstly, I mounted radiator to front due to my open shroud GPU, bringing cold air from front instead of exhausting hot air from radiator and a good portion of the GPU's hot air through top
    -I have 3 Noctua 140mm fans, 2 on top and 1 at back all exhausting...this may be an issue with -/+ air pressure? Maybe switch to a H115i to help with this?
    -For front mounted radiators is push or pull better? I also may have mounted it improperly, see pics, fans are on one side of mounting bracket and radiator is the other
    -Ambient temp is 23-25C, idling temps hover between 31-33C, when running Prime95 I can hear the H100i fans turn up and feel air being pushed through radiator however temps hover between 72-78 and sometimes skyrocket to 89ish, but only for a breif moment before dropping down back to the 75C range. Are these temps right? I feel I may have over tightened my CPU screws and maybe used a tad too much thermal compound....or maybe I'm just over thinking this whole thing.

    I have the same chip, yes they get very warm fast. What speed are you running while you ran prime?

    I dont use prime, I recommend ROG Realbench, here is a test I ran at 4.8

    Asus Real Bench




    https://1drv.ms/f/s!AqOCHQW1MOLxsynI5KQ2Yxj9Kkqv - this is a full link, it keeps breaking though. Images of build and setup in here.

    Any advice/guidance would be greatly appreciated!
    I hope that helps some, I will let others chime in on the setup of airflow. Noctua fans you are using are great, I would put them on your RAD too
      My ComputerSystem Spec

  3.    14 Mar 2017 #3

    Dude said: View Post
    I hope that helps some, I will let others chime in on the setup of airflow. Noctua fans you are using are great, I would put them on your RAD too
    Thanks for tip on ROG Realbench - much appreciated!

    I have considered putting the Noctuas on my rads but don't want the uglier (brown and tan) ones that have higher static pressure ratings. I have heard of people putting the redux fans on their rads with pretty decent results and this would match my color scheme, maybe I should consider this?

    I've also considered, to help with air pressure, flipping the rad to the top as an exhaust in pull and moving the 140mms to front as intake and running them slightly higher than I have them now. This should help with pressure stabilization. I also conisdered flipping the 140s to intake at top but know that's against best practice.
      My ComputerSystem Spec

  4.   My ComputerSystem Spec

  5.    14 Mar 2017 #5

    For the rad I presume? Should I just leave rad where I have it or flip it with the 2 140s on top and use it as an exhaust in pull up there?
      My ComputerSystem Spec

  6. Dude's Avatar
    Posts : 12,424
    Windows 10 Pro X64
       14 Mar 2017 #6

    I dont know, I have never had a rad in the front. Yes, I meant for the RAD
      My ComputerSystem Spec

  7. essenbe's Avatar
    Posts : 11,475
    Windows 10 Pro and Windows 10 Pro Insider
       14 Mar 2017 #7

    First of all, are you overclocked? That makes a big difference with temps, especially when running something like Prime95, AIDA or Real Bench.

    What thermal paste are you using? That can make a little difference as well as how it is applied.

    As far as fans go, I use and love the fans @Dude linked to. For a rad, they are perfect, just keep them turned down during normal usage. Turn them up if you are runnig a stress test.

    You can and will get a lot of opinions on which fans and how to place them. In every computer I build, every one of my fans are intake fans except the rear fan which is an exhaust fan. That brings in cooler air from the outside which is cooler than the internal case temps. It also creates positive air pressure inside the case which pushes hot air out of the case through every crack and opening in the case. It also will help keep dust out of the case. I know hot air rises, but not if you have enough fans on the top of the case pushing it down and out of the case.

    The best thing for you to do as far as fan placement is try several different ways and see which one works best for your temps. The way I do it has always helped me with my temps. JMO.
      My ComputersSystem Spec

  8. essenbe's Avatar
    Posts : 11,475
    Windows 10 Pro and Windows 10 Pro Insider
       14 Mar 2017 #8

    This is a good demo and info on positive air pressure. SilverStone Technology Co., Ltd.
      My ComputersSystem Spec

  9.    14 Mar 2017 #9

    I second the positive air flow; the advantage of keeping as much dust out of the case is a valid concept.......
    Last edited by kipper; 15 Mar 2017 at 07:56.
      My ComputersSystem Spec

  10.    14 Mar 2017 #10

    essenbe said: View Post
    First of all, are you overclocked? That makes a big difference with temps, especially when running something like Prime95, AIDA or Real Bench.

    What thermal paste are you using? That can make a little difference as well as how it is applied.

    As far as fans go, I use and love the fans @Dude linked to. For a rad, they are perfect, just keep them turned down during normal usage. Turn them up if you are runnig a stress test.

    You can and will get a lot of opinions on which fans and how to place them. In every computer I build, every one of my fans are intake fans except the rear fan which is an exhaust fan. That brings in cooler air from the outside which is cooler than the internal case temps. It also creates positive air pressure inside the case which pushes hot air out of the case through every crack and opening in the case. It also will help keep dust out of the case. I know hot air rises, but not if you have enough fans on the top of the case pushing it down and out of the case.

    The best thing for you to do as far as fan placement is try several different ways and see which one works best for your temps. The way I do it has always helped me with my temps. JMO.
    1 - Not overclocked. don't plan on it really. My Vcore is set to auto, I suppose I could squeeze a little out of that if I set to manual but not going to bother right this second.

    2 - Artic Silver 5 - I may have used a bit too much but probably just over thinking it, snow pea size, maybe a tad larger.

    3 - Those fans looks amazing and I am sure even after being dialed down run very quietly and still move a lot of air. My only knock with them are the brown tabs on the corners especially if I will be using it in pull in front of case (Tempered Glass case so can see them very easily). Prefer quiet as possible over a few degrees cooler on CPU so will consider these.

    4 - I have heard from a few folks now that they use 5-6 intake fans and the 1 back exhaust fan. I will likely flip my 140mms on top to intake and use the exhaust to guide all the warm air in the case out of the 140mm back fan and mesh holes on back of case. This will be particularly helpful as I have a open air shroud GPU.

    5 - Thank you for your wonderful advice!
      My ComputerSystem Spec


 
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