Amd ram on optiplex 755

Solution
If that is some of that "AMD Only" RAM, chances are pretty good that it will not work in an Intel board. Back in the DDR2 days, there was a difference in density that made some memory incompatible with Intel boards.

I have some sticks of that AMD Only memory for my DDR2 AMD boards. It does NOT work in my DDR2 Intel boards.
If that is some of that "AMD Only" RAM, chances are pretty good that it will not work in an Intel board. Back in the DDR2 days, there was a difference in density that made some memory incompatible with Intel boards.

I have some sticks of that AMD Only memory for my DDR2 AMD boards. It does NOT work in my DDR2 Intel boards.
 
Solution