na stránkách výrobce taktéž píše 16GB aspon tedy co čtu v PDF manuál k desce

System Memory
¾ Four 240-pin DDR3 SDRAM DIMM sockets
¾ Supports 1.5v DDR3-800/1066/1333 DIMMs with dual channel architecture
¾ Supports x16 and x8 DIMMs, non-ECC, unbuffered DIMMs
¾ Supports up to 16GB system memory