What size of PSU would I need?

[Toygunss]

What size PSU would i need to run

GIGABYTE GA-990FXA-UD3 AM3+
http://www.amazon.com/GIGABYTE-GA-9...d=1346096298&sr=8-6&keywords=AM3++Motherboard

Phenom II X4 955 Processor
http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=2375447&CatId=4433

EVGA GeForce GTX 550 Ti
http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=41125&CatId=3669

AND POSSIBLY ANOTHER GTX 550
So 2 GPU's

And Kingston Technology Hyper X (2x4)

I have a 500 watt power supply right now.

I would like to get one where it's not stressing it out and it's future proof, but at the same time affordable.

Thanks.

 

[Bobnova]

550 ti TDP is ~130w, so two is 260w.
955 is 125w TDP, so 385w. Add in 100w for mobo/ram/hdds/fans (excessive) and you have 485w before OCing.
OC the balls off of all of it and you're at maybe 600w if you're being brutal with the voltage sliders.

If you're sure you're going to get another card, I'd go with a 650w unit just in case you want to OC the hell out of it.

Right now, I think this is what I'd get: http://www.newegg.com/Product/Product.aspx?Item=N82E16817374032

I reviewed the 750w version here: Green Me 750w review
The 750w is decent.
The 650w is apparently excellent: http://www.hardwaresecrets.com/article/In-Win-GreenMe-650-W-Power-Supply-Review/1596
Where the 750w is pushing it, the 650w is well within the platform.
The 15% off is a nice touch.

 

[Toygunss]

Ok, Thank you.

 

[Bobnova]

It looks like your current PSU can deal with a 955 upgrade, but I wouldn't put a second GPU on it.

 

[Toygunss]

Yeah i won't have a second one for a bit, but i will upgrade if i do.