Ok at the moment my pc has 4gb ram installed. It is DDR2. My pc has a dual channel memory thingy, and only the two blue slots are take. (by the two 2gb rams) My two orange slots are open however. Now. my question is, can i install DDR3 memory into those two orange slots?
More aboutprobably simple question
You can only run ddr2 or ddr3, mixing will not work.
ddr3 sticks won't even physially fit in ddr2 slots. ideally, get sticks identical to those you already have.
I'm guessing he has a hybrid board, like the p5kc.