Guys, i need some help with something!

My IN9 has been really playing up recently. I have posted before about it being a bit erratic. Where i would have an overclock stable for 18hrs orthos no problems, then switch of the PC, and next day it wouldnt even be desktop stable - BSOD right away. This has gradually got worse, and yet again BSOD this morning. Took me about 3/4's of an hour just to get it windows stable at stock.

Anyhow, finally thought all was well... had a nice long spell (3hrs maybe) on Supreme Commander, and bam... CTD. Thought it could be the game, so started it up again, and 10mins in, PC restarts.

Now, i couldnt get it to post, so i cleared CMOS... came right up, but everytime i set my settings in BIOS and saved them, it wouldnt post and the only way i could solve it was to clear CMOS each time which obviously isnt right.

Anyhow, i did the usual thing of getting rid of variables, so took out a stick of ram, and that seemed to allow me to save settings and get everything how i wanted... until i put the 2nd stick in. Now it wont post with 2 sticks in the board. This is NOT a problem with my memory. Either stick will work fine, just not the two together. I have tried everything, and i just cant get the thing to play ball.

Im strongly considering RMA, but was wondering if u guys had any thoughts that might sort it?