First time building a computer, how much power/amperage do I need for this build?

donquixote01

Reputable
Feb 10, 2015
4
0
4,510
Hey guys! First time building a computer, first time poster, although I've been lurking on the site for a while. I was wondering how much power/amperage I would need for this build? I put it in a power calculator, but it said 450W, which seemed maybe kind of low?

GIGABYTE GA-970A-UD3P AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard


SAPPHIRE DUAL-X 100373-2L Radeon R9 280 3GB 384-Bit GDDR5 PCI Express 3.0 CrossFireX Support Video Card


AMD FX-8350 Black Edition Vishera 8-Core 4.0GHz (4.2GHz Turbo) Socket AM3+ 125W Desktop Processor

G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory


Kingston SSDNow V300 Series SV300S37A/480G 2.5" Internal Solid State Drive (SSD)

At least 3 140mm fans, maybe a better cooling system later depending on performance.