how to choose power supply

[jgoff14]

i have no idea how to choose a power supply. i was going to build on cyberpowerpc.com. x58 / i7920 12gb 1800mhz ram, 2gtx 295 and gts250 for physx. so how big of power is this gonna draw?

 

[aviation_man]

This helps calculate and determine what wattage you're looking for.
http://educations.newegg.com/tool/psucalc/index.html

 

[Computer_Freak]

its not ony about wattage.

its about amps

and also, make sure you get a good quality PSU.

not only will it last longer, but its better for your components...

get a Corsair, or PC Power and Cooling

 

[Okedokey]

You need this as a min for that system: http://www.newegg.com/product/product.aspx?item=n82e16817139005

 

[Jamin43]

If you're looking at a Corsair - you can plug your parts in and they will give you a list or Recommended Power Supplies based on your components - and whether / how much you intend to overclock.

http://www.corsair.com/psufinder/default.aspx