New Motherboard doesn't POST? Can't seem to solve the beep code puzzle

I just purchased an MSI 970A-G46 to use with an AMD FX processor I already had. I also got 8GB of DDR3 RAM to go with it and a 120GB SSD. I hooked it all up and put in the graphics card from my old, fried PC. When I turn it on, there are no POST beeps; there are no beeps at all. If I pull out both sticks of RAM, there are two beeps, which is what I expected to happen. However, if I only put in one stick of RAM, it still beeps twice. I tried with both sticks of RAM alone and got the same result. Is there some sort of 8GB-minimum or something? This is confusing me. Also, when I have both sticks of RAM it sometimes beeps twice when it's turning off. Is this a different error? Unfortunately, the manual doesn't seem to have a list of beep codes. The online version is BIOS dependent, and I can't seem to find out what BIOS is on my mobo.

I've reset the CMOS, but it didn't change the results. On the box, it says the BIOS is AMD FX compatible, and I'd like to think they didn't lie (as I've read older versions of the mobo don't come with that BIOS version).

Is my graphics card causing problems? From what I understand, there's no integrated graphics on the mobo, so I have no way to test this. Everything is brand new except the PSU, which worked before, and the graphics card, which also worked before.

Solution 1:

It could be that the motherboard doesn't have support for the CPU you're trying to use - look up in the manual and see if you need to update the BIOS before using the CPU you're installing on the board: https://www.msi.com/Motherboard/support/970A-G46.html#down-manual

Take a look here and see if your processor is mentioned in any of the BIOS updates as "added support for..": https://www.msi.com/Motherboard/support/970A-G46.html