i would not risk a $600 graphics card with such a low end power supply. it will work but many will tell you its not worth the gamble. good news is you can get an excellent quality evga b2 750w unit to replace it for about $60.
I agree with this. Reviews indicate that the PSU actually does 80 Plus Silver even though it's rated for Bronze. Also, it's cheaper than the CX750M on newegg.