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Thread: CPU cooling on a GA-EP45




  1. #11
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    Default Re: CPU cooling on a GA-EP45

    Quote Originally Posted by wallypiper View Post
    Has anybody had problems with warping the mobo or damaging it or the socket?
    Not yet.

  2. #12
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    Default Re: CPU cooling on a GA-EP45

    I'm running (2)EP-45-ud3r and(1)EP45-ud3p, all at around 4ghz.

    -(1)Thermalright eXtreme fits fine
    -(2)Tuniq tower fits fine, if ya saw one edge of the mounting bracket to miss the mosfets.
    (easy and quick hacksaw and the tuniq's cool best for me)

    My problems are never with the boards anyway, always with side case fan clearances.

    Save yourself some effort and get the H50 like artdrivers suggested. Plenty of room, and about 5 degrees cooler anyway....at 4.0ghz and above :)

  3. #13
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: CPU cooling on a GA-EP45

    The Arctic Cooling Freezer 7 Pro Rev.2 dimensions are 104 L x 58 W x 126.5 H (mm).
    It is a decent mid-range cooler (about $30 USD) that should be fine for moderate overclocks.
    It comes with an excellent 92mm fan. Installing a second fan for a push-pull setup will take some creative engineering.
    I have one mounted in my P35-DS3L.
    It looks like one of the mounting legs might require some minor surgery for an EP45 mobo.

    It uses a custom push-pin setup that is a bit tricky. DON'T TWIST THE PUSH-PINS or they will break.
    Check it out at the AC website and take a look at independent reviews.
    You can download the PDF spec sheet.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  4. #14
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    Default Re: CPU cooling on a GA-EP45

    I'm gonna second the Corsair H50. I own one, it works great and it takes up very little room in the case. Oh and you know that WIR your computer gives off when its on, forget about it. I went from a fan on my Q9650 that kept it around 73C, now it hovers around 43C plus it takes very little room in the case.
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  5. #15
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    Default Re: CPU cooling on a GA-EP45

    The fan for the H50 replaces the normal exhaust fan in the case and Corsair recommends installing the fan in a "blow in" position, to blow cool outside air through the radiator. My case doesn't have a place for a replacement case exhaust fan. I'd be a little concerned about the amount of heat inside the case with the cpu heat being blown INTO the case and the case exhaust fan removed. I suppose that, again, I'm being somewhat hamstrung by the Raidmax case design. Cheaped out and got what I paid for I guess. I could possibly find a place to put an exhaust fan but there's really not any empty space that I see at the moment.
    EP45-UD3LR Rev. 1.0
    Bios version F10 dated 1/27/2010
    Q9550 @ 2.83GHz with the cooling fan supplied w/processor
    PSU Corsair TX750W
    NVIDIA GeForce GTS 250
    Seagate SATA Barracuda 7200.11 1.5TB
    Hitachi SATA Deskstar 7K1000.C 1.0TB
    Samsung SATA 20x DVD/RW
    Corsair DDR2 CM2X2048-8500C5D

  6. #16
    Chike is offline Senior Member
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    Default Re: CPU cooling on a GA-EP45

    I have seen a review where they tested both exhust and intake configurations of the H50 and results were pretty much the same.

  7. #17
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    Default Re: CPU cooling on a GA-EP45

    Hmm.
    I finally noticed that the intel cpu fan DOES eventually start. The little herky jerky thing I was seeing was some sort of pre starting behavior. So maybe that's not the problem with my system. So I downloaded and installed new drivers for the on board LAN, the on board HD audio and the EVGA graphics card. A couple of the BSOD's I've gotten are, according to various google hits, possibly related to the LAN drivers. And the audio drivers have been troublesome before. And of course video drivers are notorious trouble makers. None of my drivers were very old but that's Windows. MS changes something and it ripples through the system I guess. We'll see. I'm still interested in upgrading the cooling but I don't see it as a major thing at the moment. Big thanks for all the input, though.

    At this point, my next "project" will be to go through the BIOS settings and make sure I have all of the recommended settings for a non OC mobo and see what happens from there.

    Thanks again. I'll be back, I'm sure.
    EP45-UD3LR Rev. 1.0
    Bios version F10 dated 1/27/2010
    Q9550 @ 2.83GHz with the cooling fan supplied w/processor
    PSU Corsair TX750W
    NVIDIA GeForce GTS 250
    Seagate SATA Barracuda 7200.11 1.5TB
    Hitachi SATA Deskstar 7K1000.C 1.0TB
    Samsung SATA 20x DVD/RW
    Corsair DDR2 CM2X2048-8500C5D

  8. #18
    profJim's Avatar
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    Default Re: CPU cooling on a GA-EP45

    If needed, it looks like you can reverse the air flow of both 80mm fans so that they will exhaust air from your case if you install the H50's fan so that it draws cool air into your case.

    It looks like you might be able to replace the front 80mm fan with a 120mm fan.

    Let us know how you make out or if you need more help.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  9. #19
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    Default Re: CPU cooling on a GA-EP45

    That's an idea but it would mean using the hot air coming off the radiator as the heat sink for the rest of the system. Not really sure how that would play out. It would probably be more effective to add more air inlet to the case with a larger supply fan at the front and maybe replace some of that way cool clear plastic on the side with filtered openings. or even try adding another small fan to that area. Flooding the case with cool ambient air would probably be better overall and reduce the loss of efficiency for the radiator. I do heat transfer for a living and know that a critical part of the equation is the approach. That means the temperature difference between the fluid circulating through the radiator and the air passing through it. The fluid must be cooler than the CPU itself or it wouldn't absorb heat from it. I don't know what fluid is used but assume it's water based with possibly some biocide and corrosion inhibitors added. If the CPU surface is 50 C and the air is 30 C, you have 20 C (36 F) of room between the cpu and the air. The mystery is the heat transfer efficiency of the two interfaces.

    Let's say your cpu is running at 200 watts. It could be that in order to transfer the 200 watts to the air, the fluid has to enter the radiator at a temperature 10 higher than the air temp. As it passes through the radiator, it will cool to some temp closer to the air temp but obviously never below it. So maybe that number is 40 C entering and 35 C leaving. Then the fluid returns to the cpu at 35 C where it absorbs heat from the surface of the cpu and is heated back to 40. Those numbers could be higher though. Maybe 50 entering the radiator and 40 leaving. But in any case, the fluid will always be warmer than the air by some amount so using warm air from inside the case has to make a difference. Any test that shows blow in vs blow out not making much difference has to have been performed on a system that had very good airflow INTO the case so that the air temp inside the case was not much higher than the ambient air temp. Fluid cooling in and of itself is not guaranteed to be more effective than air cooling especially when the "air" cooling utilizes heat pipes which use change of phase in the recirculating heat transfer fluid. Selecting the right fluid for that could result in much more effective cooling than a system which uses a medium that is always liquid.

    Of course, the proof is in the pudding. There's a pretty good article over at Tom's where they try to control all the variables and make an apples to apples comparison of the H50 and some air cooling options, including case temperature effects.
    EP45-UD3LR Rev. 1.0
    Bios version F10 dated 1/27/2010
    Q9550 @ 2.83GHz with the cooling fan supplied w/processor
    PSU Corsair TX750W
    NVIDIA GeForce GTS 250
    Seagate SATA Barracuda 7200.11 1.5TB
    Hitachi SATA Deskstar 7K1000.C 1.0TB
    Samsung SATA 20x DVD/RW
    Corsair DDR2 CM2X2048-8500C5D

  10. #20
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    Default Re: CPU cooling on a GA-EP45

    Quote Originally Posted by wallypiper View Post
    The fan for the H50 replaces the normal exhaust fan in the case and Corsair recommends installing the fan in a "blow in" position, to blow cool outside air through the radiator. My case doesn't have a place for a replacement case exhaust fan. I'd be a little concerned about the amount of heat inside the case with the cpu heat being blown INTO the case and the case exhaust fan removed. I suppose that, again, I'm being somewhat hamstrung by the Raidmax case design. Cheaped out and got what I paid for I guess. I could possibly find a place to put an exhaust fan but there's really not any empty space that I see at the moment.
    Well.........of course, when you switch the rear exhaust to an intake, then you switch the front intake to an exhaust...If you have no front intake for switching to exhaust, then use a side fan for exhaust. I also have a raidmax, and I merely flipped the front intake.

    You go into all this detail about cooling and air flow? Do you not have a front intake you can reverse?
    If ya know so much about airflow, the starting point should have been a better case with more fans, especially a good front fan :) No cooling works well when you start with poor circulation.

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