I decided that the sales guy oversold me on the RAM for a 4200+ CPU (that I'm not going to OC), and traded the 6400PRO modules in for 5400C4s (on sale). No change; still won't post. Next suspect in line is the CPU, I suppose. I would think any Corsair XMS2 memory would work in this board. Would the ...

I am building a new system around this board, but cannot get the system to post. Abit NF-M2 nView AMD Athlon64 X2 4200+ 65W (retail) Corsair TWIN2X2048-6400PRO (XMS2 Pro Series) Antec EarthWatts 80PLUS 380W I get a long, endlessly repeating beep. I've reset CMOS and tried each memory stick individua...