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Do i need a PSU upgrade. Thanks!

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  • Do i need a PSU upgrade. Thanks!

    -Windows 7 x64 Bit Ultimate Edition
    -Asrock 970 Extreme 3 Motherboard 1.70 Bios
    -WDC WD7500AYYS 7400Rpm HD
    -Sony Optiarc AD-7280S DVD RW
    -Geil Enhance Corsa 1333mhz 4 x 2 GB = 4 Stinks 8GB Ram
    -AMD Phenom 965 BE 3.40 Ghz
    -Sapphire Radeon HD 7770 Ghz Edition Crossfire X2 GPU
    -Logitech G510 Gaming Keyboard
    -Razer Deathadder 3.5G Gaming Mouse
    -Logitech X-530 5.1 PC Speaker
    -Corsair Vengeance 1500 Gaming Headset
    -CIT Vantage Case Blue
    - Hyper T3 Evo push pull config x2 92MM fans
    - x4 120MM blue LED case fans
    - Dell E196FP Monitor 19" 1280x1024
    - Toshiba Regza 32" AV505 TV HDMI Display
    - Usual USB additions Memory Sticks, PC USB Chargers, Xbox Wireless Receiver etc

    >>> PSU - Powercool 650W eXtreme power 80PLUS <<<



    I don't think i have any problems with that PSU other than recently been having graphics issues with crossfire and they generally do not get hot what so ever, which i guess could mean there not working properly due to insufficient power i have drawn the the line down to either the PSU or Crossfire Bridge.

    If i need a new PSU please feel free to post one within a good price range cheaper the better, that will work with this system perfectly.

    Thanks.

  • #2
    I wouldn't use that psu for crossfire. Really you shouldn't skimp on a psu a good brand is the way to go corsair enermax antec or similar.
    My RIG: MSI GE62 2QD Apache I7 4720HQ, 8GB DDR3, 128GB SDD + 1TB HDD, GTX 960M 2GB, Windows 10, 15.6" IPS screen.

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    • #3
      I think you should be fine with the wattage assuming the 7770's use 1 power cable each, as each pci-e cable comes from a different +12V rail.
      --
      Fractal R4 (shhh!) 3570k, z77x-d3h, 16gb, R9-270X, 240gb SSD, 2tb mirror w/ 60gb cache drive

      Comment


      • #4
        Originally posted by danroyle View Post
        I wouldn't use that psu for crossfire. Really you shouldn't skimp on a psu a good brand is the way to go corsair enermax antec or similar.
        I concur

        Added after 2 minutes:

        Originally posted by Spaceboy View Post
        I think you should be fine with the wattage assuming the 7770's use 1 power cable each, as each pci-e cable comes from a different +12V rail.
        30 amps max over 2 rails that's 360w

        factor in 2 gfx cards if they pull 150w each that's 300

        leaves 60w for cpu/mobo/ram/fans/hdd

        edit: just found out they use max 100w per card, so that's 200w, an leaves 160w for everything else, so it's borderline at best
        Last edited by k3vst3r; 08-12-12, 23:40.

        4770k @ 4.6, XSPC Raystorm, Avexir 4x4GB 2400MHz, ASUS Z87 Maximus Hero VI, Tri-fire 290x/290x/290 Reference EK 290X CSQ Full Nickel Blocks, Alphacool 240 ST-30, Alphacool 360 ST-30, Asus Xonar, Alphacool D5, Corsair AX 1200i, Carbide 540

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        • #5
          Originally posted by k3vst3r View Post
          edit: just found out they use max 100w per card, so that's 200w, an leaves 160w for everything else, so it's borderline at best
          Yep - he's using a 125-140W CPU too.

          I suggested it was possibly the PSU in his other thread even if he is using 7770's.

          Comment


          • #6
            According to a forum mod at Sapphire Forums the Amps and Voltages are to low on my PSU for xfire only just though and that is more than likely the cause of my issues a low wattage gfx card like mine and the product claims to support xfire i will be getting store credit one way or another thanks for all the replies going to purchase this monday:

            http://www.aria.co.uk/Products/Compo...roductId=51730

            Comment


            • #7
              with 62 amps available on 12v rail that will give your system 744 watts available

              4770k @ 4.6, XSPC Raystorm, Avexir 4x4GB 2400MHz, ASUS Z87 Maximus Hero VI, Tri-fire 290x/290x/290 Reference EK 290X CSQ Full Nickel Blocks, Alphacool 240 ST-30, Alphacool 360 ST-30, Asus Xonar, Alphacool D5, Corsair AX 1200i, Carbide 540

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              • #8
                http://www.aria.co.uk/Products/Compo...roductId=53134

                Vs

                http://www.aria.co.uk/Products/Compo...roductId=51730

                Which will be best for my system i plan to go to Aria when its open in a few hours to purchase one of the two.

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                • #9
                  Probably go for the TX myself, although you can get some lower wattage Gold rated BQs for the same price.

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