Can I SLI?

[Murdin999]

Hi, i wish to buy another 570 to upgrade my PC and allow for 3d surround gaming and was just wondering if with the below specs i can? (Mainly have i got enough grunt so to speak in my PSU to allow it)

Mainboard: Gigabyte Z68X-UD4-B3
Processor: Intel Core i5 2500K @ 3300MHz
Processor Cooler: Hydro Series H60
Physical Memory: 4096MB (2 x 2048 DDR3-SDRAM )
Video Card: NVIDIA GeForce GTX 570
Hard Disk: SAMSUNG HD103SJ ATA Device (1000GB)
Hard Disk: Seagate ST3500413AS ATA Device (500GB)
DVD-Rom Drive: ATAPI iHAS124 B
Power Supply: OCZ StealthXStream 2 700W

As well as the above i have 4 USB devices that draw power from the pc (G15 keyboard, g9 mouse, a webcam and a headset)

Using http://extreme.outervision.com/PSUEngine it says 632W when its 570 SLI, but in reality could my power supply it handle it?

 

[EniGmA1981]

700 might be a bit borderline... Personally, I'd want 800W or more

Could always try it and if you get problems with it (freezing, artefacts etc.) then upgrade the PSU

 

[snaggster]

Its not the watts you need to worry about. Its the amps accross the rails that will matter for sli. You should be ok with your psu. Though do you have enough 6pin pci-e connectors?