Which two of the following can be used to distinguish differ

Which two of the following can be used to distinguish different memory types such as DDR, DDR2, DDR3, and DDR4? (Obj. 1.1) chip count Location of the alignment notch(es) Module height Pin (contact) count Color of the module’s circuit board

Solution

DDR consist of DIMM 184-pin and 64*8 bits chip organization.

DDR2 consist of DIMM 240-pin and 128*8 bits chip organization.

DDR3 consist of DIMM 240-pin and 512*8 bits chip organization.

DDR4 consist of DIMM 288-pin and chip organization varies from 512M*8 to 2G*4.

As per the total number of pins and chip organization alignment of the notches and module height varies.

Color of the module circuit board may be same for DDR1, DDR2, DDR3 and DDR4.

Thus, different memory type such as DDR, DDR2, DDR3 and DDR4 can be distinguish by the Chip count, Location of the alignment notches, Module height, and Pin count.