That mobo will only support 95w fx Cpus, or in other words 81xx series or upto fx6300 at best, so dreams of a 9590 are gone, you can't do it. For any of the better cpus you'd have to get a new motherboard anyways.
Right now, the most versatile are the z97 paired with i5 or i7 for Intel, and fx990 paired with 83xx for AMD.