Motherboard ram controller

Ok im new to this fourm but.. awhile ago i built this computer see my profile to check specs but i bought a 8gb (4gbx2) sticks but only one would work at a time both work seperate  but together i was getitng memory not installed error  on my motherboard

ummm.... the memory controller isn't on the mobo anymore... i think when ddr3 came out, the moved the controller to the cpu

so your saying that it is infact my cpu that is malfunctioning.. could it be that my ram is corrupted or somthing?

reseat the ram

make sure the ram is properly seated. once you check that, if it doesn't work, take and move a stick through all the slots...

how do you reset the ram?

ive done that with both sticks went through all 4 dimms with each stick of ram