New
#11
It's not that simple,
1) do you have the sata ports?
2) Does your case have 4 free HDD cages?
Again we'll need proper info and pictures to advise.
Let's not wander too much into the APU and processors, can you afford a new mobo? I would open a new thread just for that question and keep this for solving the power and connection issues for the..........4 additional HDD's.