dawnscopez :
My specs are
Computer Configuration #41656 $1384.00
Intel S1150 Core i7 4790K 4.00Ghz Quad Core CPU Special
ASUS S1150 MicroATX B85M-F Motherboard
DDR3 16GB (2x8G) 1600MHz Kingston HyperX FURY Blue RAM HX316C10FK2/16
120GB Samsung 2.5" 850 EVO Series SATA 6Gb/s SSD Drive PN MZ-75E120BW
1TB WD 3.5" 7200rpm SATA 6Gb/s Caviar Blue HDD PN WD10EZEX
NVIDIA GTX960 2GB Gigabyte PCIe Video Card PN GV-N960IXOC-2GD
Deepcool ATX Tesseract SW Case Black with Window (No PSU)
AWAiTING PCU
A good 450W PSU is more than enough for this config.
The GTX 960 only require a quality 400-430W PSU that can deliver 20Amps or more on its +12V rail. The first most important criteria in selecting a PSU is to look for how many Amps it can deliver on its +12V rail, besides wattage. So make sure that the PSU you pick meets at least the minimum requirement of 20Amps.
I noticed that you've selected the i7 4790K which is a overclock processor. But you cannot overclock it using a motherboard based on B85 chipset, which is the ASUS MicroATX B85M-F.
You either get a Z97 chipset based motherboard for i7 4790K or get a H97 chipset based motherboard along with non-K i7 4790.
Keep in mind the 4790/4790K both are Haswell Refresh. So if you buy a H81/87/B85/Z87 chipset based motherboard, then you may have to update their BIOS in order for them to even recognize and support the Haswell Refresh processors. But if you buy a H97/Z97 chipset based motherboard, then it will support any of the Haswell Refresh Processors right out of the box. No need for any BIOS update.
Update:
PSUs to consider:
XFX P1-450S-X2B9 450W
XFX P1-550S-XXB9 550W
SeaSonic M12II 520W
EVGA 220-GS-0550-V1 550W
Cheers!
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@tea urchin
I voted down all your comments as a protest against your arrogance for unnecessarily voting down my opinion, even though what I said was absolutely right.
By voting down, you misguide the original poster "dawnscopez", which clearly shows you're not here to provide your honest opinion or solution but to take childish dig at others.
May be next time you better be careful and think twice before bashing or voting down others opinions, just because they don't align with your way of thinking.