Thanks for the replies. I've added to the specs below - Let me know if I'm missing anything.
Specs:
1) PSU: Intel Pentium E6300 2.8 GHz (BX80571E6300)
2) RAM: G.Skills DDR3 (F3-12800CL9D-4GBRL)
3) Case: Cooler Master Elite 335
4) PS: Corsair 750W (CMPSU-750TX)
5) Video: EVGA GeForece GTX260 (896-P3-1255-AR)
The v12 powr is conencted and so is the beeper (I've tripple-checked this at this point

)
How do I check to see if the PSU is dual voltage (I checked the specs and it doesn't say? And if it is, now do I set the correct voltage (I can't get into the BIOS right now)?
The motherboard is raised up using the copper screws provided with the case.
Thanks again.