- DDR2: Computers using Intel Core Duo, Core 2 Duo CPU.
- DDR3: Computers using Intel Core 2 Duo, Core i
Step 4: When you insert the RAM sticks into the slots, you should choose the RAM sticks on the same bus.
If the bus is different, you will not be able to take full advantage of the RAM and will waste money when upgrading. When you use 2 RAM sticks on a computer with different buses, the computer will only use the smaller bus.
Learn more about RAM BUS: RAM Bus is the operating frequency of RAM (in MHz). The larger the RAM Bus, the faster the system speed is, the shorter the data transfer time with the CPU and vice versa.