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Thread: Power consumption question

  1. #1
    Advanced Member goobee's Avatar
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    Power consumption question

    Well you guys are a bad influence and I have 2 more 8800GTS cards on the way for a total of 3. I can either put them into 3 separate boxes or get a SLI mobo and run only 2 boxes. Power consumption wise, I'm thinking 2 boxes will be more efficient but since these videos cards pretty power hungry under load, will it make any difference in overall consumption?

    What do you guys think?
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  2. #2
    SG Enthusiast rickoic's Avatar
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    Goobee

    Depends on what size ps your running.

    If it's big enough put both on one mb. If it has the 6 pin pci-e connectors to handle both.

    I'd think running 1 bigger ps would be cheeper than running 2 smaller, but more wattage combined than a bigger one.

    Power consumption of the cards will be the same whether they are on 1 mb or 2. But you'll have to power 2 hd's, 2 cd/dvd's, and 2 cpus on two different boards the other way.

    Tks
    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  3. #3
    Advanced Member goobee's Avatar
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    OK, that's good enough for me. I just ordered this:

    http://www.newegg.com/Product/Produc...20P7N%20SLI-FI

    and a 600watt PS. I should be able to put all 3 GPUs into it.
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  4. #4
    SG Enthusiast rickoic's Avatar
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    Looks good, did you make sure that the ps had 3 pci-e 6 pin connectors?

    I bought the Jetway J775GT2 motherboard with 3 pci-e nests on it, but when you put the 8800 GTS cards on it there is only room for 2 as the first on covers up the second nest so that only the 1st and 3rd nests are usable.

    But your mb looks like they are spread out enough to handle all 3 at once.

    Sure you don't want to come back and fold with us?

    Fold on,

    Rick


    Edit: to make sure the ps will be big enough theres a web site you can check on; http://www.slizone.com they have all sorts of information concerning sli graphics and all, but the power consumption page would apply to folding as well.
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  5. #5
    Advanced Member goobee's Avatar
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    I took a chance with the RAIDMAX AURORA 2 RX-600F

    http://www.newegg.com/Product/Produc...82E16817152031

    It was on sale for black Friday last weekend. Supposedly SLI ready, and I'll use an adapter for the third.

    I'm trying to boost my little upstart team. There's 4 of us in total crunching away.
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  6. #6
    SG Enthusiast rickoic's Avatar
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    Looks good and still on sale for $39.99 after $25.00 mail in rebate.

    Where do you get converters to what convert a regular connector to a six hole'er

    Good luck

    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  7. #7
    Advanced Member goobee's Avatar
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    Some video cards come with it. I got mine from my local Fry's.

    http://shop3.frys.com/product/473499...H:MAIN_RSLT_PG
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  8. #8
    SG Enthusiast rickoic's Avatar
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    Hey Goobee

    Have you got your computer up and running with 3 8800's yet?

    Tks
    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  9. #9
    Advanced Member goobee's Avatar
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    Nope, still waiting for one card to arrive. I may have to leave negative Heatware for somebody.

    I've had 2 going since Sunday night.

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  10. #10
    SG Enthusiast rickoic's Avatar
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    Well I got one of those mb's and I have 3 8800's on it, but Win XP is only recognizing 2 of them. Guess later today I'll have to check each of the off two 8800's and see if one of them is bad.

    Fold on

    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  11. #11
    Advanced Member goobee's Avatar
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    Finally heard from the dillweed today. Said he was busy with finals. That is hogwash. He has time to sell the card but no time to ship??!!

    Swap the cards around Rick, hopefully it's something simple like a partially seated card.

    I'll let you know how mine works out if and when I get my overdue GTS.
    "Signature?........We don't need no stinkin' Signature!!!"

  12. #12
    SG Enthusiast rickoic's Avatar
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    That was the problem. One of the cards wasn't inserted correctly. Now it's going on 3 gpu's.

    Tks
    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  13. #13
    SG Enthusiast rickoic's Avatar
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    I'm working on a deal now that will blow you away.

    One of my mb's went down, so I have 3 8800 GTS's sitting around twiddling their fingers. Two because of the MB and 1 because of a ps not being strong enough to manage 3 8800's.

    MSI P6N Diamond MS-7320.

    Will hold 4 8800's.
    Ordered a 1100W PS for it.

    Will move a 260 over to the other mb with the power supply only strong enough for 2 8800's.

    Also had to send my mx2 back as the off side kept hanging and would then lock up the other side for folding.

    Fold on

    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  14. #14
    Advanced Member goobee's Avatar
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    Wow, 4 x vid cards should rock!

    Make sure you have a nice big case with good air flow. It's gonna be hot in there.
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  15. #15
    SG Enthusiast rickoic's Avatar
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    Will have mb sitting on top of a table on top of a piece of vapor-iuser filter which will allow it to pull cooler air into the bottom part of itself. Top will be sitting in the ambient air (which this time of year varies between 40 F when I'm not in there and 65-70 when I am. Have a ceiling fan going all the time to keep the air circulating. I'll watch though and if it starts being too hot I'll place a little fan to blow air across it anyway.

    Tks
    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  16. #16
    Advanced Member goobee's Avatar
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    What GPU clients are you using? I'm using 6.20 and they aren't crunching much in results.
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  17. #17
    SG Enthusiast rickoic's Avatar
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    I'm using the 6.XX whatever is there when I added a GPU. My numbers vary depending on cpu and protein. Larger proteins have lower numbers in the 2500-3000 ppd range, while smaller proteins go up to 4000-4500 ppd range. Thinking seriously about disableing the allow big proteins option on my gpu's.

    Tks
    Rick

    Edit...guess I should also say that that is only my 8800 GTS's.
    Last edited by rickoic; 12-15-08 at 10:16 PM.
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  18. #18
    Advanced Member goobee's Avatar
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    Hmm? Not good. My two cards are sitting too close together. The upper one has little to no air flow.

    I put my finger on it and it's getting hotter than the other two. I'm not going to chance it, I need to pick up a single slot version GPU to allow for more air flow.

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  19. #19
    SG Enthusiast rickoic's Avatar
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    That problem has been discussed before and about the only solusion that's been come up with is adding another fan.

    You can get a usb fan, or one that connects to a molar connector and adjust it where it blows, or sucks air across the upper card which helps some. Also go to http://www.evga.com/ forget right now what the rest of the address is, go to my post Easy OC nividia cards I put it there. Use that program to put the card fans to 100% that lowered my cards temps about 6 C but mine aren't in a case so may not lower yours that much, but between that and adding another fan that should drop the temps somewhat. Cheeper that buying another rig, and might be worth a try first.

    Fold on
    Rick
    Prostate Cancer survivor, too late for me with a cure, but maybe I can help save others just like me. Wife brest cancer. Cured.

  20. #20
    Advanced Member goobee's Avatar
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    I've already got a 120mm case fan (you can barely see it in the pic) blowing air directly across the cards and it's not helping that much.

    I'm still thinking about getting a card with a smaller heatsink, maybe a 9600GSO which should run cooler. I'll put the 8800GTS into my Xeon box.
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