i am want to ungrade my power supply to Chieftec CFT-1200G-DF 1200 Watt...but i dont know that the +12v rails be enough to run my Overcloked i7 950 @ 4Ghz and OC 3 x GTX 260 Core 216 3 way SLI.the specs of PSU in which i am intrested is..
Energy Efficient 80 PLUS Certified
It's probably powerful enough, but do you really want to be one of the first buyers? Did you consider better PSUs like the BFG Tech EX-1200 (a lot more power on the 12V rails), a PC Power & Cooling PPCT1200ESA (single 90A 12V rail), a ENERMAX Galaxy EVO (lots of power on the 12V rails), etc.? What happens when using the Corsair?
I vote NO.
The Corsair 1000HX has the same internals design as the Thermaltake 1500w.
It is, in fact, of higher quality inside as it uses all solid caps.
As the Corsair 1000HX costs more than $100 less and has better internals than the Thermaltake 1200w (or 1500w for that matter), I still highly recommend it for the job.