Following is the configuration of my Laptop Acer Aspire 5520-5716 AMD Turion64 TL-58 X2 (1.9GHz, 2x512 KB L2 Cache) Nvidia 8400M G 128MB GDDR2 (Turbo Cache 896MB) 2GB DDR2 15.4" WXGA Acer CrystalBrite 160GB HDD DVD-Super Multi DL 802.11b/g WLAN Can I upgrade the RAM to a DDR2 800 (From 667)?