你去買ddr3雙層4g*2二條就可以了 2 x240-pin DIMM, 8 GB, DDR3 1333*/1066/800 Non-ECC,Un-buffered Memory 雙通道 記憶體架構 ** Refer to www.asus.com or user manual for Memory QVL (Qualify Vendor List) *** 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.