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What psu should i get?

Last response: in Systems
June 16, 2012 11:07:56 AM

Corsair Vengeance Blue 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit (CMZ8GX3M2A1600C9B) £ 42.95

1TB Seagate Barracuda Green 3.5" SATA 3GB/s Internal Hard Drive [ST1000DL002] £ 62.08

Cooler Master CM Storm Trooper Black Full Tower Chassis w/ USB3.0 £ 104.99

ASUS P8Z77-V DELUXE Intel Z77 Socket 1155 DDR3 PCI-Express Motherboard £ 190.00

Intel Core i5-3570K 3.40GHz (Ivybridge) Socket LGA1155 Processor (77W) - Retail £ 174.60

PALIT GeForce GTX 670 2048MB GDDR5 PCI-Express Graphics Card w/ 1 FREE Game! £ 311.99

I am hoping to add an SSD a better HDD later on this month.
I am also looking to SLI 2 or even 3 cards when i need a performance boost.
So can you tell me what PSU I need

More about : psu

a b B Homebuilt system
June 16, 2012 1:01:08 PM

SLI with 3 wouldn't be a good performance boost over 2 with the 3 rd slot being x4. The way I read the MB specs it only support 3 way CF, not SLI.

that being said 2 GTX 670's in SLi needs 170W (MAX) each + system power w/ CPU (overclocked) totaled running at less than 80% than the PSU max. 340+208 =548W so to stay at 80% of max you will need 700W minimum (you might get away with a solid 650W as I am using maximum's and you rarely will hit them)

My Pick:

other good options:
June 18, 2012 8:58:18 PM

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June 22, 2012 6:09:25 PM

could i get away with smaller case
a b B Homebuilt system
June 22, 2012 9:18:58 PM
June 22, 2012 9:25:44 PM

Go with an Enermax or Seasonic 750W modular psu & the Cooler Master HAF 912 case