RAM not working.

[snadol]

I have some 4GB DDR2 modules, but when I put them in a DDR2 computer, it beeps when I try to turn it on, and i traced it to the RAM. Are there different types of DDR2 RAM. Also the RAM says PC2 which I assume is DDR2 because it fits in a DDR2 slot.

 

[rgd1101]

What is the exact model of the motherboard?

 

[snadol]

What is the exact model of the motherboard?

I do not know exactly, I'm at work currently. I'll answer when I get home.