What Wattage Power supply to use?

sonyz92

Honorable
Mar 25, 2012
5
0
10,510
Hello Tom's Hardware members!
I'm new to the forum but I have build a few computers before. Today my question is, do I have a good selection of hardware for a new build? Things have changed a bit since I build my last pc about 5 years ago.
Heres what I've chosen so far:

CPU http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072]
I'm going with i5 because its cheaper and is said to still be great for gaming. i7 is out of my budget.

RAM http://www.newegg.com/Product/Product.aspx?Item=N82E16820231455]

Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E16813157271]

GPU http://www.newegg.com/Product/Product.aspx?Item=N82E16814127578]

Also, if I use these components, what wattage power supply do I need? I don't want to over spend by getting one that has more than I need.
 
For a system using a single GeForce GTX 560 Ti graphics card NVIDIA specifies a minimum of a 500 Watt or greater power supply that has a combined +12 Volt continuous current rating of 30 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

For a system using two GeForce GTX 560 Ti graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater power supply that has a combined +12 Volt continuous current rating of 52 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors.

Overclocking of the CPU and/or GPU(s) or being able to run FurMark or some equivalent GPU stress testing utility will require an additional increase to the combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock and/or GPU stress testing. The additional amount needed will also depend on the magnitude of the overclocking you are trying to achieve.
 

sonyz92

Honorable
Mar 25, 2012
5
0
10,510
@dirtyferret is that 40a total?

@JackNaylorPE Probly not going to touch the Video card seeing as how those frequencies are oc'd already. I want to stay on the safe side on that one. The CPU however I probably will overclock a good amount or at least what a Cooler Master H 212 will allow.