Crossfire X3 cards on 850w PSU?

My Computer

System One

  • Manufacturer/Model
    Custom built Desktop
    CPU
    AMD Phenom II X6 1090T Black Edition 3.2Ghz
    Motherboard
    MSI 890FXA-GD70 AM3 AMD 890FX
    Memory
    8GB Adata Gaming series 2.0 DDR3 1600
    Graphics Card(s)
    MSI Twin Frozr 5830 X2 with MSI 5850 Crossfired
    Monitor(s) Displays
    Asus 19", Acer 17"
    Screen Resolution
    1400x900
    Hard Drives
    OCZ Agility 3 60gb, 500GB F3 Samsung Spin point and 5 other HDD's
    PSU
    850W OCZ
    Case
    NZXT Phantom
    Cooling
    2 200mm fans with 6 120mm fans
    Keyboard
    Saitek 2
    Mouse
    Logitec G9
    Other Info
    Major AMD, ATI and MSI Enthusiast.
The PSU Will be able to handle these cards but I need to know what other Hardware you are going to put in on the machine also I need to know if you intend to upgrade it sometime in the future

Many Thanks for your Co-Operation

Josh
 

My Computer

System One

  • Manufacturer/Model
    Custom Built
    CPU
    Intel Core i5 2400 @ 3.10GHz
    Motherboard
    Foxconn H67MP-S/-V/H67MP
    Memory
    8.0GB DDR3 @ 665MHz (2GBx4)
    Graphics Card(s)
    AMD HD Radeon 6870
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    SMB1930NW (1440x900@60Hz)
    Screen Resolution
    1280x800
    Hard Drives
    977GB Seagate ST31000524AS ATA Device (SATA) + 250GB WD iSCSI attached Drive
    Case
    Novatech Night
    Keyboard
    Standard PS/2 Keyboard
    Mouse
    Dell HID-compliant mouse
my system specs are up to date, and that's the last upgrade for a while
 

My Computer

System One

  • Manufacturer/Model
    Custom built Desktop
    CPU
    AMD Phenom II X6 1090T Black Edition 3.2Ghz
    Motherboard
    MSI 890FXA-GD70 AM3 AMD 890FX
    Memory
    8GB Adata Gaming series 2.0 DDR3 1600
    Graphics Card(s)
    MSI Twin Frozr 5830 X2 with MSI 5850 Crossfired
    Monitor(s) Displays
    Asus 19", Acer 17"
    Screen Resolution
    1400x900
    Hard Drives
    OCZ Agility 3 60gb, 500GB F3 Samsung Spin point and 5 other HDD's
    PSU
    850W OCZ
    Case
    NZXT Phantom
    Cooling
    2 200mm fans with 6 120mm fans
    Keyboard
    Saitek 2
    Mouse
    Logitec G9
    Other Info
    Major AMD, ATI and MSI Enthusiast.
Even not knowing I can tell you you'll be fine.

Only issue will be the lack of pci-e cables. I'd run 2 to the 50, and 1 each to the 30's with a 4 pin to 6 pin converter too.
 

My Computer

System One

  • CPU
    Dual L5639 // i7 950 @ 4.0Ghz
    Motherboard
    Evga SR-2 // Gigabyte x58a-ud3r
    Memory
    12Gig Corsair XMS3 // 6Gig OCZ Gold
    Graphics Card(s)
    gtx 560 ti // gtx 260-216
    Monitor(s) Displays
    Dual 22" // Headless
    Hard Drives
    OCZ aGILITY 3, 120Gig + Seagate 500Gig x 2
    PSU
    Silverstone da700 // Corsair 520hx
    Case
    Rosewill BlackHawk Ultra // Antec 900v1
    Cooling
    Twin CM Hyper 212+ // Noctua NH-u12
    Other Info
    Acer 8930 laptop with x9100...
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