2 x DIMM, Max. 16GB, DDR3 1866/1600/1333/1066 MHz ECC, Non-ECC, Un-buffered Memory
Dual Channel Memory Architecture
* Refer to www.asus.com
for the Memory QVL (Qualified Vendors Lists).
* Due to OS limitation, when installing total memory of 4GB capacity or more, Windows® 32-bit operation system may only recognize less than 3GB. Install a 64-bit Windows® OS when you want to install 4GB or more memory on the motherboard.
* AMD FX Series CPU on this motherboard supports up to DDR3 1866MHz as its standard memory frequency.
* Due to CPU spec., AMD AM3 CPUs on this motherboard support up to DDR3 1333MHz.