What PSU for this rig?

I'm building a new rig for the first time soon so I am a noob at this. I am not sure what PSU to get. What is the cheapest PSU that will work, or how many watts will the rig need?
Specs:
i7-3770k (Might overclock it a bit)
Sabertooth Z77
Two Gainward GTX 670 Phantoms in SLI
8GB of Corsair Vengeance ram
Seagate Barracuda 1TB HDD
Corsair H100i WaterCooler
Corsair Vengeance C70 Case

I already have three monitors(For Nvidia Surround), keyboard, mouse and optical drive.
5 answers Last reply
More about what
  1. If you don't care about it being modular(you get better cable management with a modular psu) get this PC Power & Cooling Silencer Mk II 750W 80 PLUS Silver Certified http://www.amazon.com/dp/B003U29C3Q/?tag=pcpapi-20
    If you want a modular psu get this XFX 850w XXX Edition http://www.amazon.com/dp/B0050751YS/?tag=pcpapi-20
  2. I would go modular and think about 1 of these:

    CORSAIR HX Series HX850 850W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular $159

    KINGWIN LZP-850 850W ATX 12V v2.2 / EPS 12V v2.91 SLI Ready CrossFire Ready 80 PLUS PLATINUM Certified Modular $139

    Do not cheap out on your power supply. This is the heart of your system. This is an investment in the life of your PC. If you buy cheap and it fails it can take out most of your PC. Spend the money and enjoy your gaming. These two listed will power your system. The 2nd one has 70amps on the 12 vail, more than enough continuous power for your needs.
  3. strife_ff7 said:
    If you don't care about it being modular(you get better cable management with a modular psu) get this PC Power & Cooling Silencer Mk II 750W 80 PLUS Silver Certified http://www.amazon.com/dp/B003U29C3Q/?tag=pcpapi-20
    If you want a modular psu get this XFX 850w XXX Edition http://www.amazon.com/dp/B0050751YS/?tag=pcpapi-20

    I live in Norway and didn't find any stores here that sell these PSUs, but I found a XFX 850w XXX edition that just looks a bit different. Will this be good? Link: http://www.komplett.no/k/ki.aspx?sku=760109#info
    The site is in Norwegian though.
  4. Yes, that's a very good psu. It's modeled after the seasonic m12ii which is a great psu. You could get the xfx 750w http://www.komplett.no/k/ki.aspx?sku=760108 Your system will only use around 600w so the 750w psu will be fine.
  5. strife_ff7 said:
    Yes, that's a very good psu. It's modeled after the seasonic m12ii which is a great psu. You could get the xfx 750w http://www.komplett.no/k/ki.aspx?sku=760108 Your system will only use around 600w so the 750w psu will be fine.

    Thanks, going to get that PSU then :D
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