4 x DIMM, Max. 8 GB, DDR3 1600*/1333/800 Non-ECC,Un-buffered Memory
Dual channel memory architecture - supports NVIDIA® SLI™-ready technology
**Refer to www.asus.com or this user manual for the Memory QVL(Qualified Vendors Lidts).
***When installing total memory of 4GB capacity or more, Windows® 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.