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Thread: Core temp issue




  1. #1
    Acebmxer's Avatar
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    Default Core temp issue

    While my system was down waiting for RMA on PSU I decided to redo my water loop.

    Here is a pic of the before



    And here is the new setup



    The other thing I changes was TIM's I found the little bit of MX-2 that came with the EK water block and decided to try that.

    After starting the system up idle temps look fine. I loaded up LinX while it was at 99% load temps looked great but once it hit 100% temps are about 10c higher then they should have been. So it then switched back to good old TX-2 and temps are still off. I am using the easy mounting system with the EK block which does not allow you to over tighten but still just as tight as it was before I moved everything. Also I am positive there is no air in the system as I had it running out of the case for a day running it on and off.

    I could try another remount of the block but I did it the same as I always do. I changed it to the new layout thinking I would see better temps if at all as the tube coming from the rad to the cpu is shorter. Also forgot that I switched the directions of the fans so they are blowing out instead of in as there was to much dust in the case.

    Any ideas?
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  2. #2
    boondocks's Avatar
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    Default Re: Core temp issue

    Well your water system definitely looks much better! MX-2, is that Arctic Silver? Haven't used that one. I have swapped back and forth between TX-2 and the paste Noctua includes with their coolers and found no difference in cooling.
    There always seems to be a tradeoff between dust and cooling. My place is extremely dusty, and it's mostly pretty dry here. It's not unusual for me to clean filters every 2-3 weeks and blow the case out. Have you tried setting the fans up with a positive pressure?
    i.e. plenty coming in, not as much going out.
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  3. #3
    Acebmxer's Avatar
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    Default Re: Core temp issue

    The MX is Artic cooling I believe. In those pics it is hard to tell but the rad is setup in push pull so a total of 6 fans running at max. These fans Yate Loon 120mm x 25mm UV Reactive LED Fan - UV Blue (D12SH-124UB) - FrozenCPU.com

    Positive pressure or negative pressure has no effect on the cpu while its water cooled as far as I know.

    The cpu used to top out at 82-84c while running 4.6ghz HT off @ 1.45v not its hitting 90-93c. Room temp is 70F or 20c.
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  4. #4
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    Default Re: Core temp issue

    could be your fans,those are the main changes blowing out now instead of in?

    pick some dust filters up for the top mounted fans,cant think of what else it could be
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  5. #5
    boondocks's Avatar
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    Default Re: Core temp issue

    Yeah, I'm just saying for dust control you might try positive pressure. As far as your temps, haven't got a clue.
    Maximus 8 Hero/6700K @ 4.8/4x4GB LPX @ 3200 15-17-17-36 CR1
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    Seasonic Platinum 1000w custom fabbed/sleeved psu wiring by me

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  6. #6
    Acebmxer's Avatar
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    Default Re: Core temp issue

    I should find some dust covers but honestly this cooling system sorta amazes me but at the same time thought it would do better. In the past up in till now has always been constant from time put together till 3-4 months for cleaning with the radiator would have a 1/4 think coating of dust and the fans covered slightly in dust temps never changed maybe 1-2c but thats a stretch.

    also another thing its hard to see but old setup I actually only had 5 fans, 2 push on the bottom and 3 pull on top. I could not fit the 3rd fan as I had 2 45 fittings on the rad. The new setup I rotated the rad and changes the fittings around and allowed me to use the 6th fan, and still I have temp issues.

    Ill wait to see if anyone else chimes in to see if the fans blowing in opposite direction rely make that much difference.
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  7. #7
    Acebmxer's Avatar
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    Default Re: Core temp issue

    Quote Originally Posted by boondocks View Post
    Yeah, I'm just saying for dust control you might try positive pressure. As far as your temps, haven't got a clue.
    That's why I swapped the direction of the fans to see if it would cut down on the dust as other way was killer.
    Main Rig
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    Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
    Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
    HiS ATI HD 6950
    Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
    Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
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    Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
    CORSAIR CMPSU-850TX PSU
    Swiftech MCP655-B Pump
    EK Supremacy Cpu Block
    Swiftech Mcres Micro Rev 2 Reservoir
    Black Ice GTX Xtreme 360 Radiator





  8. #8
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    Default Re: Core temp issue

    if the outside air is cooler than the air inside your case it makes sense to have them drawing air in from outside? only way to know would be to test it,any womens tights hanging around?(ohh kinky) pull one over the top of your entire pc case,quick and easy dust filter
    Gigabyte z77x UP4-TH F11c Modded Bios
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  9. #9
    Acebmxer's Avatar
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    Default Re: Core temp issue

    For ships and giggles I did another re-mount and maybe helped 1-2c drop. Doing more test since the rebuild I loaded Optimized defaults and have entered overclock manually and only ran LinX for maybe a 1 to 2 passes as it didnt take long for temps to show a problem. This time I tried loading a profile that was known to be stable and it failed each time asking for more vcore, 4.6ghz has been stable with 1.45v. I did notice that gflops have been more constantly on the higher side then the past.

    Is it possible that the new PSU is able to push a little more or have some sorta effect on stability and higher core temps?
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  10. #10
    Lsdmeasap's Avatar
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    Default Re: Core temp issue

    MX-2 temps will be a little less than TX-2, maybe 3-5C sometimes, so that would have a little to do with it at first. I love both MX-2 and TX-2, TX-2 offers better temps but I can only buy 3-4g at a time, so I often end up using MX-2 more because I can get 30g tubes for around $22 or so shipped.

    Same Vcore/Vtt/Vccsa as before, are you 100% sure, and same BIOS? I mean it sounds like you haven't used the board in a while so maybe you aren't certain. Also, same graphics cards, memory, ect? I see you also switched pumps, that may add some into the differences as well. And looks like you also changed the flow direction, or does it just look that way?

    And yes, fan direction could make that much of a difference, also the amount of fans has changed too. The only way you will know for certain if this is the issue is to put everything back exactly how you had it before, otherwise it's just wasting time trying to figure it out if this might actually be the issue.

    New PSU shouldn't affect Vcore/stability or temps at all, except for adding it's own heat into the case.

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