Crossfire on z68 Mobo

Hi all,
I am planning to build an i5 2500k, 7850, 8gb RAM, 1tb western digital, 60gb ocz agility, Coolermaster 212 EVO pc. I was wondering what motherboards would be able to run crossfire 7850's if I want to upgrade them, I was looking at some z68 mobo's but does 16/4 pci-e work? What motherboards do you suggest(preferably £60-80 ($90-125). also what kind of psu would I need to run this pc with say the i5 4.2 ghz~ and 2x7850's would 550w do or is 650w necessary?

Thanks in advance,
fin
6 answers Last reply
More about crossfire mobo
  1. PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Motherboard: ASRock Z68 Extreme3 Gen3 ATX LGA1155 Motherboard (£106.02 @ Amazon UK)
    Power Supply: Corsair 650W ATX12V / EPS12V Power Supply (£69.63 @ Ebuyer)
    Total: £175.65
    (Prices include shipping and discounts when available.)
  2. Quote:
    much better if you get this PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Motherboard: Asus P8Z68-V PRO/GEN3 ATX LGA1155 Motherboard (£138.98 @ Dabs)
    Power Supply: XFX 750W ATX12V / EPS12V Power Supply (£93.99 @ Amazon UK)
    Total: £232.97
    (Prices include shipping and discounts when available.)


    Thanks! I've even found the z8z68 for only £75 @ http://www.amazon.co.uk/Asus-P8Z68-V-Gen3-Mainboard-Memory/dp/B005UDITT6/ref=sr_1_3?s=computers&ie=UTF8&qid=1340404634&sr=1-3

    Is that 750w psu really necessary?
  3. finlaymurray123 said:
    Thanks! I've even found the z8z68 for only £75 @ http://www.amazon.co.uk/Asus-P8Z68-V-Gen3-Mainboard-Memory/dp/B005UDITT6/ref=sr_1_3?s=computers&ie=UTF8&qid=1340404634&sr=1-3

    Is that 750w psu really necessary?
    650Watt is necessary i just added 100W to give you breathing room but you could don't have to get 750Watt AMD recommends at least a 600w for crossfire of 7850
  4. PCPartPicker part list / Price breakdown by merchant / Benchmarks

    This would work to Power Supply: Corsair 650W ATX12V / EPS12V Power Supply (£89.58 @ Scan.co.uk)
    Total: £89.58
    (Prices include shipping and discounts when available.)
  5. Thanks, sorry for no reply -I've been away.
  6. finlaymurray123 said:
    Thanks, sorry for no reply -I've been away.
    No problem. :)
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