Gigabyte GA-M68MT-S2P won't post...

Hello,

I just purchased an AMD kit off of TigerDirect. Since I haven't personally built a computer for quite some time I went line by line on the instructions. I fired it up and no post - no beeps at all. Fan is spinning, LEDs are lighting up, but no video or beeps. I moved around the memory, reset CMOS/BIOS, checked all the connections, re-seated the CPU, everything.

I scoured the internet for what could be the problem, tried a few tutorials (well, checklists) and still nothing. There was even a really good checklist from this site.

My problem MIGHT be the power. The PSU has a 20+4 pin and an 8 pin connector. I plugged in the 20+4 because it made sense, but on the mobo there's still an unused 4 pin connector. Do I hook that up? The 4 pin on the PSU doesn't go in it, won't fit. Plus I don't like plugging in voltage where I don't know where it goes. Could this be the problem?

Right now I'm breadboarding it... Took the mobo out, sitting in on the box with 1 stick of memory in just trying to get it to boot.

Here's what I have with this mobo...
- AMD Phenom II X3 710 2.6Ghz 95W OEM CPU
- Cooler Master DK9-7G52A-0L-GP CPU Cooler AM3/ AM2
- 2x Corsair 4GB DDR3 PC10666 1333MHz 4096MB
- Thermaltake V2 Mid Tower ATX Case with 450W PSU


Any help would be awesome!