Hey, today I've decided to change my GPU Geforce 630 with a gtx 280 that I found for 40$. After some research I found out that my PSU was basically shit. 400 watts 25A at 12V. So now I am searching for a decent PSU that can power the gtx 280 and is also compatible with my old MSI k9 NEO v2 motherboard. My question is will theCORSAIR CXM series CX750M do the job or are there better options.