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Thread: Upside down PSU overheating




  1. #11

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    Which brand of PSU is it? and is it a full tower atx case or like super midi. mine is entry level atx.
    Lian LI PC60
    (2 intake 80mm ADDA/3
    exhaust 80mm ADDA)
    EG465P-VE Enermax Dual fan PSU 465watt
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    200mhz X 11.0 = 2.205GIG
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    Asus V8460 U Ti 4600 Dx
    CPU full load 28C
    Case full load 24C
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    11682 marks=xp best performance settings @ 2500+ 166mhz x 11.0X = 1.83GIG

  2. #12
    Join Date
    Jan 2003
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    968

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    Powmax makes a 400W PSU with the second fan on the end. This could be the ticket for those cases that have upside-down mounting configurations. I've only had one Powmax PSU, but it seems to work just fine. The fans are pretty easy to replace, and the anodized aluminum cover comes in other colors for those cases with windows. : peace2: :cheers:
    <img src="http://www.statgfx.com/statgfx/folding/?&username=Wordbiker&border=0,255,0&tr ans=yes&template=fah_original&.jpg" alt="www.Statgfx.com" />
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  3. #13

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    This is my case
    http://www.skyhawkusa.com/psr4616b7.htm

    This is my PSU
    http://www.antec-inc.com/us/pro_deta...p?ProdID=20481


    I think im going to just drill some holes in the case so i can install it rightside up this weekend parhaps.

    oh well. Ill tell you if there are any temperature changes. It should cool it down immensly.

  4. #14
    Join Date
    Jan 2003
    Posts
    968

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    Quote Originally Posted by mpetrie
    This is my case
    http://www.skyhawkusa.com/psr4616b7.htm

    This is my PSU
    http://www.antec-inc.com/us/pro_deta...p?ProdID=20481


    I think im going to just drill some holes in the case so i can install it rightside up this weekend parhaps.

    oh well. Ill tell you if there are any temperature changes. It should cool it down immensly.
    I have the exact same case, other than my front bubble lights are blue only, and I did the mod to it. If you have a nibbler, the aluminum is easy to cut through, and it won't throw off a lot of dust like a Dremel grinder would. There's enough material to drill the new holes already (barely), but you'll have to cut a bit of metal away for the power plug. Good luck with the mod! :thumb:
    <img src="http://www.statgfx.com/statgfx/folding/?&username=Wordbiker&border=0,255,0&tr ans=yes&template=fah_original&.jpg" alt="www.Statgfx.com" />
    Revenge is just a respawn away....Pagosa LAN Parties

  5. #15
    Join Date
    Dec 2002
    Location
    Winnipeg, Canada
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    848

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    Ok, after examining your case further, I discovered stuff. First that 60mm rear exhaust fan does almost nothing trying to blow through a few tiny little holes. Same with the front intake fan. Your psu has thermo-controled fan speed, letting the side fan overpower it. I think your side exhaust fan is sucking the hot air from the psu into the case, turn it(the side fan) around.(turning the psu around will not stop this, but should be turned around anyway). With thermo controlled psu fans, it is even more so required to have more air going into the case than going out, or else this happens.

    Are you using that fancy fan/duct contraption? If so, it is also of little use since it has nowhere to blow the air(tiny little holes again).

    I have attached a picture of where to cut to actually have the fans flowing air. Make sure you don't get even one speck of metal anywhere inside the case(strip it of all electronic/electric stuff first before cutting).
    athlon xp-m@2456mhz(12x204)
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  6. #16
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    I thought about mentioning this in my last post....I have since cut out that back section with the 60mm fan, and now have twin 80mm fans there. AMD_man looked over my oldest posts from when I first came to TT and pointed out to me...I was SO scared to cut my case right after I got it. Now I'm a Dremel madman. :wow: I also cut in two 120mm fans in the front and bottom. I also agree that the side fan should face in.
    I bought a cheap case for a client with ONLY one fan in front, one in the rear, and a side panel fan. The side panel fan was installed facing out (exhaust) at the factory, and I didn't catch it until after I had the system together and checked temps. I swapped it to an intake fan and temps dropped by over 10 C!:cheers:
    <img src="http://www.statgfx.com/statgfx/folding/?&username=Wordbiker&border=0,255,0&tr ans=yes&template=fah_original&.jpg" alt="www.Statgfx.com" />
    Revenge is just a respawn away....Pagosa LAN Parties

  7. #17
    Join Date
    Apr 2002
    Posts
    3,141

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    Quote Originally Posted by mpetrie
    And right now the side fan is an exhaust. I am probably going to change that once i get this whole thing straightened out.
    That is what you should do first of all.
    And then see how much heat problems you facin' and calculate a solution.. :)

  8. #18

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    Quote Originally Posted by maximus7001
    Are you using that fancy fan/duct contraption? If so, it is also of little use since it has nowhere to blow the air(tiny little holes again).
    Nah, that fan thing is a piece of junk, plus it gets in the way of the beautiful view through the window. If you dont mind me asking, why cut out the thin part on the side? Am i installing anything there or just leaving it open?

  9. #19
    Join Date
    Dec 2002
    Location
    Winnipeg, Canada
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    That was assuming you were using it, the cut would make 100% airflow instead of like 8%.
    Anyway what I was sayin about the sidefan, with the psu fans being rpm controled by temp, when on low speed, the sidefan(that has good flow) is suckin hot air fron the psu against it's fans force. In this situation, having more intake than exhaust would solve the heat problem. I am guessing your old psu did not have temp controled fans.
    athlon xp-m@2456mhz(12x204)
    tt aquariusII liquid cooled/ arctic silver ceramique
    asus a7n8xe-dlx
    thermaltake xaserIII lanfire
    bfg 6800gt
    seagate sataII 250gb/seagate 7200rpm 160gb ide
    samsung dvdrw
    2x1024 kingston hyper-x pc3200/ windows xp pro sp3
    logitech mx518/ logitech wingman rumble
    2x samsung 955df 19"/ canon i960
    creative x-fi fatal1ty 64mb/ altec lansing 251-5.1
    mushkin 550w

    opteron 146 @ 2850 (10x285)
    DFI infinity nf4 ultra
    thermaltake tsunami dream -black
    seagate sataII 500gb
    evga 8600gt oc ssc edition
    samsung sata dvd-rw
    2x1024 ocz black
    logitech ifeel/ nec accusync 75f
    ocz fatal1ty 550w

  10. #20

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    Quote Originally Posted by maximus7001
    I am guessing your old psu did not have temp controled fans.
    Lol, not at all. The old PSU was a CompUSA 400w piece of junk. I had to get a new one because the +3.3 lines were only pumping about half the juice and it was giving me lots of weird errors, bluescreens, etc.

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