PSU and GPU Quick Question

[Ariclol]

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor
CPU Cooler: Noctua NH-U9B SE2 37.9 CFM CPU Cooler
Motherboard: ASRock H97 PRO4 ATX LGA1150 Motherboard
Memory: Kingston Fury Black Series 8GB (2 x 4GB) DDR3-1600 Memory
Storage: PNY Optima 240GB 2.5" Solid State Drive
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: PowerColor Radeon R9 290 4GB PCS+ Video Card
Case: Corsair SPEC-01 RED ATX Mid Tower Case
Power Supply: SeaSonic 620W 80+ Bronze Certified Fully-Modular ATX Power Supply
Optical Drive: Asus DRW-24F1ST DVD/CD Writer
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)

I already purchased all the parts, as I am building. I noticed that the R9 290 has a minimum 750W requirement. I purchased a 620W and did not notice that it required it. Is this a real problem? Do I have to return the 620W and purchase a 750W? Any help would be great!

[Arbiter]

No it doesn't need 750W. It's more of a recommendation than a minimum requirement, and it's there to make up for people with shitty PSUs. That PC won't use more than 400W at max load.

[Ariclol]

Awesome, thanks for the quick response!

[Fascinate]

lol no you are fine. Those minimum recommendations are nothing more than the manufacturers trying to cover their arses, they are almost never accurate. Your 620w is more than sufficient for your build, here is a power consumption chart of a 290 if you are curious:

http://www.tomshardware.com/reviews/...k,3659-17.html

Highest they could pull from the card is 235 watts, given your cpu will be 90-140 watts depending on how much you overclock, and the rest of the parts in a system being 5-10w each you have plenty of headroom for your rig.