Power Supply for GTX 280 tri-sli and 9800gt

hey guys so my friend just GAVE me some of his old parts for FREE, so i plan on using the 3 gtx 280's he gave me in my old system, question is, what power supply should i get for them? i need 4 6-pin connecters and 3 8 pin connecters right?

Budget: Doesnt really matter, under 250 would be nice
Place to Order: newegg or tigerdirect (they dont charge me tax :P)

System will be as follows:
core i7 920 (liquid cooled)
x3 gtx 280's in tri sli
9800 gt for physx
3 hard drives

if you need any more info just ask, thanks in advance
14 answers Last reply
More about power supply 9800gt
  1. Timop said:
    Nice friend you got there.

    You could technically get by using a sub-$150 PSU like the TX950/LZ-1000.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817121068&cm_re=Kingwin_Lazer-_-17-121-068-_-Product
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139013&Tpk=950TX

    But for some headroom, I would suggest a Kingwin Mach 1 1220W/Silverstone Zeus 1200W, both under $200 :
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817121040
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817256042

    Only one of those would work i believe, cause i will need 3 6 pin and 3 8 pin connectors for the GTX 280's and a 6 pin for the 9800 gt, so in the end i would need this:
    4 x 6 pin
    3 x 8 pin (either 6+2 or 8)
  2. wahjahka said:
    Only one of those would work i believe, cause i will need 3 6 pin and 3 8 pin connectors for the GTX 280's and a 6 pin for the 9800 gt, so in the end i would need this:
    4 x 6 pin
    3 x 8 pin (either 6+2 or 8)

    Nope, just use a molex->6-pin for the 9800GT, all it really matters in a PSU is having enough power on the right rails. That 9800GT isnt going to draw much power from that 6-pin anyways.
  3. wahjahka said:
    Only one of those would work i believe, cause i will need 3 6 pin and 3 8 pin connectors for the GTX 280's and a 6 pin for the 9800 gt, so in the end i would need this:
    4 x 6 pin
    3 x 8 pin (either 6+2 or 8)


    Nice "old" system you got there :D

    You could always purchase a couple molex adapters:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16812887001
  4. Timop said:
    Nope, just use a molex->6-pin for the 9800GT, all it really matters in a PSU is having enough power on the right rails. That 9800GT isnt going to draw much power from that 6-pin anyways.


    Ahhhh your right, completely forgot about them 6 pin to molex lol never had to use them before lol, thanks for the help.
    i havent heard much about kingwin psu's seems to have good reviews on newegg, are they reliable?
  5. enzo matrix said:
    Nice "old" system you got there :D

    You could always purchase a couple molex adapters:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16812887002&cm_re=molex_adapter-_-12-887-002-_-Product

    Wrong adapter, that one is the EPS12V for Mobos, this is what he needs.

    I haven't heard much about Kingwin PSUs reliability, as its not the most popular PSU maker out there, but the reviews on its units are all decent and the bottom line is it can all produce its rated power while staying in spec. The specific models I recommended however, are both highly rated ones.
    http://hardocp.com/article/2008/08/19/kingwin_abt1220ma1s_mach_1_power_supply/1
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=168
  6. My bad. Corrected to avoid any future confusion ;)
  7. I thought I'd throw this out there since its gota 40 dollar MIR....

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139007

    Kingwin is pretty reliable though, so if you want their 1200 get it, I don't reccomend them myself anymore becuase I have gotten two one was DOA and the other died within the first month, I think that was all bad luck though.
  8. wahjahka said:
    Ahhhh your right, completely forgot about them 6 pin to molex lol never had to use them before lol, thanks for the help.
    i havent heard much about kingwin psu's seems to have good reviews on newegg, are they reliable?


    I have the Kingwin Mach 1 1000w running 2 GTX 280 in SLI running for one year.
    Here is a picture:
    http://www.tomshardware.co.uk/forum/page-269596_10_50.html#t2069295

    I will be selling my SLI GTX 280's soon.......
  9. You can also try out the new Corsair AX1200. 80+ gold certified isn't it?
  10. hell_storm2004 said:
    You can also try out the new Corsair AX1200. 80+ gold certified isn't it?


    Yeah but its very expensive compared to the other options given in this thread haha.
  11. 3 GTX 280 and 9800GT. Free stuff. This is the right time to get an AX1200! :D :D
  12. hell_storm2004 said:
    3 GTX 280 and 9800GT. Free stuff. This is the right time to get an AX1200! :D :D

    He'd be better off getting 2 X-650s for a dual PSU set up (two is better than one XD)
  13. i am leaning towards a kingwin mach 1 or lazer but the red pci-e connecters are UGLY, anyway i can change them to black without having to buy $10 adapters??
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