Is DDR-2 and DDR-3 RAM can be used together??

Hi,

Hi,
Your Motherboard supports only DDR2 800 / 667 MHz DIMMs, DDR2 and DDR3 are not physically compatible, the memory pins of DDR3 cannot fit into that of DDR2 slot. There are alternatives to solving you problem
You can buy dual combo DDR2 and DDR3 motherboard manufactured by MSI, particularly 790GX-8D and the P45-8D.
Your motherboard comes with an internal graphic card which is not very useful, purchase an external graphic card probably used from ebay.com which will cost you less.
Before you look at trying to fit DDR3 into a DDR3 DIMM slot, you should note the following differences that makes them incompatible:
It is impossible to fit a DDR3 RAM into a DDR2 slot consider buying a graphic card .