power supply needs

[randomperson201]

ive posted on here before and got a really good answer so i thought id ask another on here again

im getting a new pc with an

Asus maximus v formulla z77 motherboard

intel 3570k

gskill ripjawsx 16gb 2133mhz

kingston hyperx 3k 120gb ssd

seagate barracuda 2tb HDD

and 2x 7950's in crossfire

i do plan to overclock with watercooling but not sure to what extent and was wondering how big of a power dupply i would need

thanks to all in advanced

[hiyayhi]

The amd spec is to have at least a 750watt PSU for crossfire 7950's, I would suggest something in the 800watt range. Also it is quite important to get a good brand PSU as if you get a cheap arse one and it fries your system you gunna be MAD bro. I would suggest anything Corsair, OCZ, or Seasonic.

http://www.amd.com/us/products/desktop/graphics/7000/7950/Pages/radeon-7950.aspx#2

[christoi]

I'd personally recommend an ~850w unit. While you could run the system with a lower-wattage unit, I wouldn't recommend it as it can affect the lifespan of the unit.

[xeks]

850w+ Gold/Platinum PSU will crush.

[Huskie]

Something like a Corsair AX860i would fit perfectly.

[Guest]

Somewhere around the 750-850w range that's 80 plus certified will do. You don't need gold or platinum ratings because in reality they're worthless - you spend more on the extra cost to buy it than you will save in the first 3 or so years on your bills.

If you're budget restricted, the Silverstone Strider Plus 750w is about $150ish and is fully modular with really good build quality. If you have a bit more money, the Corsair AX750w is a good option. I wouldn't bother with the 760i as you don't have any other components in Corsair's 'i' ecosystem.