1. Run cmd
2. Enter wmic Enter
3. Enter memorychip Enter
4. Pull right to find
the number under Speed Status , if it is
133-266 it is DDR
400-800 is DDR2
1066-1600 is DDR3
1866-3200 is DDR4
1. Run cmd
2. Enter wmic Enter
3. Enter memorychip Enter
4. Pull right to find
the number under Speed Status , if it is
133-266 it is DDR
400-800 is DDR2
1066-1600 is DDR3
1866-3200 is DDR4