Adding more RAM to my existing 8GB of RAM

cashew105

Prominent
Aug 14, 2017
10
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510
I'm wondering if I can just add more RAM or if there are complications. I currently have 2 sticks that are 4GB each. Can I just add an 8GB stick? Or would I have to add 2 more sticks of RAM that are 4 GB? They would be the Crucial Ballistix RAM.

RAM:
Crucial Ballistix Sport 8GB Kit (4GBx2) DDR3 1600 MT/s (PC3-12800) CL9 @1.5V UDIMM 240-Pin Memory BLS2KIT4G3D1609DS1S00

Motherboard:
ASUS Micro ATX DDR3 2000 AMD AM3 Plus Motherboard M5A78L-M/USB3
 

cashew105

Prominent
Aug 14, 2017
10
0
510
So, if i got 2 more sticks that are 4GB I'll be fine?