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Cooling The Nv 7800GTX

Discussion in 'Graphics Cards' started by TonyM16, 26 Jan 2006.

  1. TonyM16


    Joined: 22 Jan 2006

    Posts: 81

    Hi all. If I wanted to make my Nvidia XFX "Extreme Ed" 7800GTX in SLI run cooler what could I do, using only conventional methods ie not inluding liquid/water cooling or phase cooling. My card has a stock clock speed of 490mhz and is of the preoverclocked variety. The box on which my card came in says that they have used a really effecient and better cooling solution compared to a regular reference Nvidia 7800GTX card. I am not sure if this is true or not , but for the life of me i can't find any differences in the sink compared to a picture of a reference model, except for colour.

    My card runs idle at around 47-55 c in my current case and can go up to about 70-80c easily while playing FEAR. This game always makes a card go real hot, and so is a good game to test out cooling.

    I have seen these aftermarket graphic card heatsinks, from companies such as Zalman and Arctic, they have huge fans in the middle, so they look like they are effecient but I think they will make my card in to a dual slot card, which isn't ideal either. Anyway my point is , are my current temps particulary high for a XFX 490mhz 7800GTX or should I really try and get it lower somehow.

    Also would those after market heat sinks that I was talking about offer a big improvment or not , compared to what I have already got?
  2. gary996


    Joined: 24 Aug 2003

    Posts: 3,290

    Location: Gillingham Kent

    Have you got any decent case cooling. Get the zalman fan bracket and put a 120mm fan so it blows over the 2 cards
  3. Peri


    Joined: 21 Nov 2005

    Posts: 69

    Location: Shropshire, UK

    I had the exact same problem, and i went with arctic coolers..... you can read why they are still on my shelf here

    In the end i went for water cooling.

    heres the idle temps now - they were the same as yours before.

    I dont have a similiar pic showing the load temps, but the gpu doesn't go above 42 now....even after 4 hours of cod2 :)

    If you stick with air, i think the deciding factor is going to be your mobo, and how far apart the sli slots are from each other.
  4. TonyM16


    Joined: 22 Jan 2006

    Posts: 81

    Wow. I really like that setup (the liquid cooling part). I can't believe you are able to get such low temps. I defenitly need to improve mine. As far as my case goes, the one I am using right now isn't ideal and will be getting replace with a Silverstone soon. My mobo has also died on me and so will be getting another one. Either the latest Asus or DFI (A8N32 of Expert). So maybe I could wait until I do all that and see what happens. The case I want has two 120mm fans exhausting at the top and 2 92mm fans intaking air at the back. It doesn't have any vents on the side for another fan to go but it is a big case and does have PCI vets. So as far as CPU cooling I know it's going to be good, but as far as graphic card cooling I don't know, as it doesn't have anything in particular for them. The case is the Temjin TJ07. I really hope that the cool air will get to the bottom before getting sucked out. Opinions?
  5. Peri


    Joined: 21 Nov 2005

    Posts: 69

    Location: Shropshire, UK

    My case is a CM Stacker, and with the stock cooling it didn't seem to matter how much cool air i got into the case - gpu's might've dropped 4 or 5c with the sides off.

    I believe - i may well be wrong - that all aftermarket aircoolers turn your cards into dual slot hoggers. That was the main reason i went the way i did. With the Abit board (and i've got an msi k8n diamond here thats the same) i just couldn't afford to lose the pci slots. As it is, i still lost my raid card. :(

    I'm not familiar with the hardware you've mentioned, so i can't really comment, except to say that personaly, i'd wait till you had all your new kit before thinking about new coolers. The drivers are set to throttle the card back at 115c......so i s'pose that unless the temps go above that, they shouldn't be damaged at all.

    Hope you get it sorted mate :)
  6. nO}{8

    Wise Guy

    Joined: 25 Jun 2004

    Posts: 1,569

    Location: in the clouds

    take the plastic top off the heatsik, slap on a 80mm, easy, or angle a 120mm at the side of it, that way you only need some cable ties.
  7. brakeinup


    Joined: 6 Jan 2006

    Posts: 928

    Location: Notts/Derby

    TonyM16 - I have the Leadtek version of your card running at 490 with the dual slot cooler on it. Does yours have the 4 heatpipes? Its the same cooler as what is on the GTX 512.

    For info:

    My card runs at about 37 degrees C idle (a bit more if the room is a little warmer) and around 50 degrees C on full load. I have an older case but I decided to keep it as I can mount a 120mm Akasa Amber fan at the front bottom of the case which is drawing cool air directly to the video card. Im using an Arctic Cooler 64 on my X2 and a Hiper 580w psu with a 120 and an 80 mm fan inside.

    Have you set any fan control up with something like Riva Tuner? I have been messing with Riva Tuner and have had poor results. If I set the Fan Control to AUTO it throttles the fan down to about 25% but does not speed it up in relation to heat.
  8. Havana_UK


    Joined: 14 Oct 2004

    Posts: 4,787

    Location: location, location

    I shouldn't worry about your temps.

    My cards idle at 47 & 45 respectively & load at 71 & 68.

    That's in an Antec P180 with the HDD in the bottom with the PSU, and 1 x Akasa 120mm silent on intake & two on exhaust duty :)

    You're well within spec.

    My gripe with the stock coolers is that the hot air from the heatsinks warms the case RIGHT up (I hit near 40 case temp after gaming), which in turn causes the CPU to run warmer. I was tempted by the Arctic Coolers since they exhaust the hot air from the case, but after reading about folks not liking them, I've decided to stick with the standard heatsinks until such time as I take the plunge on water cooling (pun intended!)

  9. juno_first


    Joined: 18 Apr 2003

    Posts: 2,562

    Location: Stoke, England

    I put 6cm stealth fan on my 7800gtx heatsinks & was only able to clock from 470 to 480, not woth the extra noise :(
    Did try water but the resonator started venting steam with old PD 3ghz linked too, not tried with AMD yet though.
  10. Arcane


    Joined: 19 Aug 2005

    Posts: 3,642

    Location: Ealing, London

    Took me ages to work out why my CPU temps seemed higher than others, then it dawned on me it was SLI. My cards get well into the 70's under load but I don't worry about it, they shut down at 115 iirc.
  11. Hyper


    Joined: 2 Jul 2005

    Posts: 3,533

    Location: Newcastle

    Hello Peri
    I have a single 7800GTX and i am looking for one of them arctic coolers for mine.
    Are the ones you got the Rev3 ones if so i would be intrested in buying one.
    Please send me a e-mail to confirm a price, my e-mail address is in my trust.

    Thanks, Sam
  12. kinggost

    Wise Guy

    Joined: 7 Jan 2005

    Posts: 1,860

    Location: Nottingham

    In the same boat as you hav i got gtx sli hit 45-50 idle and not for off 80oC for both cards at load and my cpu 45 idle and nearly 60oC at load

    Just odreded most of my new watercooling setup cost me nearly £350. But should be really good as i have orderd decent bits