No worries but as I said it might be tight, if you put 4 hard drives in the configurator it may request a higher PSU. If you are planning on adding fans or more drives then go for a higher PSU.
HAF-X i7-2700k Quad Core - 2GB NVIDIA GEFORCE GTX 680 SLI - 240GB INTEL® 520 SERIES SSD - 2TB WD CAVIAR BLACK - CORSAIR 1200W PRO SERIES - COOLIT ECO II FAT BOY - NZXT Sentry 2 Fan Controller - Asus Xonar DX Sound card - 3 x ASUS VG278H 27" Monitor 3D
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I'll definitely look into it, might increase it to the 750w just to be on the safe side. Should hopefully be purchasing within the next few days but I wont go ahead without checking things over.
I'd increase it to 750w as with the 650 corsair PSU only has the right cables to power 1 gpu and will need a special adapter to power a second off of that 650 psu so I would go for the 750W PSU in my opinion to be on the safeside and I can re-assure you in saying the 7870 is a good card for what it does. Hope that helps
InWIN BLACK DRAGON RIDER GAMING CASE
AMD BULLDOZER SIX CORE FX-6100
ASUS® SABERTOOTH 990FX - TUF SERIES MILITARY GRADE MOTHERBOARD
8GB KINGSTON HYPERX GENESIS DUAL-DDR3 1866MHz X.M.P
2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable
750GB WD CAVIAR BLACK WD7502AAEX, SATA 6 Gb/s, 64MB CACHE
1TB 3.5" SATA-III 6GB/s HDD 32MB CACHE
24x DUAL LAYER DVD WRITER
CORSAIR 650W ENTHUSIAST SERIES™ TX650 V2-80 PLUS® BRONZE
COOLIT ECO II A.L.C ADVANCED LIQUID COOLER