from hat i can see that is ok
Looks pretty sweet, pretty nice OC too :good:
Just keep increasing the core/memory clocks by 5mhz at a time (I would recommend using Rivatuner) until it becomes unstable. I do not actually own a desktop, so I don't have much experience with this, but I'm sure other members will be able to recommend programs/ways to test for stability (unless you already know how to!)