Hi there, i hope i can ask in this topic - my problem is very similar.
My future rig:
i7 920 D0
Noctua NH-U12P Special Edition
3x2gb Gskill F3-12800CL8T-6GBPI
PIONEER DVD+/-RW DVR-216D
Creative Sound Blaster X-Fi Xtreme Gamer
XFX gtx275 XXX Core
SSD Vertex 60gb
Western Digital 1 TB 7200rpm 32MB cache SATAII [WD10EADS]
2xDell 2209wa monitors
5x fan (2 on noctua+ 3x typhoon gentle)
I wanted to OC i7 to 3.8 (4.0 is taking to much power in my opinion, and performance boost is just not worth it).
I'm pretty sure, that BeQuitet P7 650W will be more than enough for this rig, but what about adding second gtx 275?
I read whole topic, and some reviews on TH but still cant figure that out.
i7 920 at sotck will take 109/213 (according to TH review)
i7 920 at 3.8 will take 129/310 (idle/peak) (according to TH review)
gtx 275 will be OC to ~730 core i guess - so i would say 55/240
2x275 will take what? 110/400 ?
Sa full power consumption in peak, with 2x275 should be about 400+310+?(others hardware parts)
Or my math is very wrong
? The question is, will 650W will be enough for i7 3.8 + 2x275 and mentioned other hardware? Or it will be barely enough with i7 on stock clocks and 2x275?
Thx in advance for any help with that