1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Which psu is best for my setup?

Discussion in 'General Hardware' started by jswizzy, Apr 8, 2011.

  1. jswizzy New Member

    Joined:
    Apr 7, 2011
    Messages:
    14 (0.01/day)
    Thanks Received:
    0
    Hey guys, I was wondering which psu would be better for a system that has two radeon hd6950's (unlocked shaders and overclocked to 6970) in crossfire setup and a i5-2500k cpu with a moderate overclock.

    XFX 650W XXX Edition P1-650X-CAG9 Power Supply Sealed
    http://compare.ebay.com/like/200592...edcd78f&itemid=200592013017&ff4=263602_309572

    XFX 650W XXX Edition P1-650X-CAH9 Power Supply Sealed
    http://compare.ebay.com/like/170601...edcd78f&itemid=170601897239&ff4=263602_309572

    or

    Corsair CMPSU-650TX 650-Watt TX Series 80 Plus Certified Power Supply
    http://www.amazon.com/dp/B000X24ISU/?tag=tec06d-20
     
  2. basco

    Joined:
    Jun 29, 2009
    Messages:
    102 (0.05/day)
    Thanks Received:
    25
    Location:
    austria
    you don´t want a psu with just 2 pcie 6pin to power 2x 6950??? like the corsair.

    and don´t save money on powersupply.

    with your setup i would go for 750 or 850 watt.

    there should be some good corsair or antec for 30$ more.

    http://www.amazon.com/dp/B0046L2KQ6/?tag=tec06d-20
     
    Last edited: Apr 8, 2011
  3. jswizzy New Member

    Joined:
    Apr 7, 2011
    Messages:
    14 (0.01/day)
    Thanks Received:
    0
  4. AlienIsGOD

    AlienIsGOD

    Joined:
    Aug 9, 2008
    Messages:
    3,484 (1.52/day)
    Thanks Received:
    1,544
    well the advice that is most given on this site is never skimp on a PSU. Look at my rig, I have a Corsair HX 1000 in it and it only pulls 450-500 watts @ full load. Also if you have a thread in another sites forums that has several responses, why come here and ask whats best?
     
    Crunching for Team TPU
  5. jswizzy New Member

    Joined:
    Apr 7, 2011
    Messages:
    14 (0.01/day)
    Thanks Received:
    0
    i posted the same question on both forums at the same time just to get answers from a wider range of people you know. Now I'm confused... should i get a 650 xfx or the 750.... hmmmmm
     
  6. manofthem

    manofthem

    Joined:
    Jan 9, 2011
    Messages:
    6,304 (4.46/day)
    Thanks Received:
    8,526
    I'm running a Corsair TX750 with 2 6950's and havent noticed any power issue yet. I think my psu was like $115 like a month back. I wish I had gotten the 850 though...:(
     
    Crunching for Team TPU
  7. AlienIsGOD

    AlienIsGOD

    Joined:
    Aug 9, 2008
    Messages:
    3,484 (1.52/day)
    Thanks Received:
    1,544
    I would go with the highest wattage you can afford :D Think of it this way, if u get an 800 - 1000 watt PSU you should be set for at least another build or 2 with it...

    Edit: Ahh i see now, going at it from all Forum angles. My bad :p more opinions the better :D
     
    Crunching for Team TPU
  8. crazyeyesreaper

    crazyeyesreaper Chief Broken Rig

    Joined:
    Mar 25, 2009
    Messages:
    8,171 (3.95/day)
    Thanks Received:
    2,811
    Location:
    04578
    get a good 750w unit with 2 6pin and 2 6+2pin PCIE connectors go for a good brand

    those opinions are fine but they dont take capacitor agining into account as a powersupply ages it slowly becomes unable to supply its full power thus why most will suggest a higher wattage unit

    im running 2x 6970s on an 850w psu and im still when fully overclocked pulling around 650-700w when i heat peak so while yea a 650w unit can do the trick id be hitting the max of the unit all the time under intense loads more often you hit that line the more often something is to go POP.

    get a 750w minimum for dualcards recommending an 850w for reliable power long term.

    750w units
    XFX
    XFX Black Edition P1-750B-CAG9 750W ATX12V v2.2 / ...
    Corsair
    CORSAIR HX Series CMPSU-750HX 750W ATX12V 2.3 / EP...
    PC Power & Cooling
    PC Power and Cooling Silencer 760W PPCS760 Max 760...

    850w units
    Corsair
    CORSAIR HX Series CMPSU-850HX 850W ATX12V 2.3 / EP...
    Cougar (ugly but a damn good unit)
    COUGAR SX850 COUGAR-SX850 850W ATX12V / EPS12V SLI...

    thats just 1 site try Tigerdirect as well for other deals / prices
     
  9. basco

    Joined:
    Jun 29, 2009
    Messages:
    102 (0.05/day)
    Thanks Received:
    25
    Location:
    austria
    most people don´t look for the specs just wattage.
    so the xfx units are fine(also the corsair except of only 2x pcix) but i always recommend a little bit more and its the only part of a pc i take with me to the next build.

    i have my corsair 100hx for 4-5 years now and hope for more to come.
     

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page