Safe PSU Wattage for 2 SC GTX 570s?

[Kinggrimm]

Building a new rig and have an EVGA OC GTX 570, what is a safe wattage to run another in SLI? I have a Corsair HX Series 750W, but I am thinking that this may be border line. Input would be greatly appreciated. Thanks

Moved to PSU forum.

Super Moderator BFG10K.

 

[toyota]

it should be okay but the other components need to be factored in too and you did not mention those.

 

[Kinggrimm]

Not all decided yet. Will be a gaming rig, with new Sandy Bridge i7 2600, new p6y MoBo, 12gbs Corsair Vengeance RAM, 120g Patriot Inferno SSD HD - Don't know smaller details yet.

 

[Kinggrimm]

er p67*

 

[toyota]

I hope you get the 2600k not the 2600. and why would you get 12gb of ram as 8gb or 16gb would seem like logical choice with dual channel? and surely that will not be your only hd.

anyway with a 2600k build and only a couple drives you should be fine with 570 sli on that psu. you should have no issues unless pushing the cpu and gpus really hard with lots of additional voltage.

 

[Kinggrimm]

2600k yes, and I have 12gb as of now will be getting an additional 4gb. Did not mention other HD, 1TB Samsung.

Thanks for the info, glad I don't have to drop another $160-200.

 

[Smartazz]

How many sticks of RAM make up those 12GB? If you're coming from an X58 platform, be aware that you're going to lose two dimms on a P67 motherboard. Also, that power supply will be great for a setup like that. I'd go a little easy on the overvolting though.

 

[Kinggrimm]

3 sticks to make up the 12GB. So 4 to make up 16GB. Been so hard to wait for the new Sandy Bridge MoBo's glad they are here next week ;D

 

[nwo]

440W for the cards
+~200W for a very high OC on the i7 2600k (around 130W at stock speeds)
Leaves you with about 100W for the rest of your system components, so it would be safe to say you'll be fine.