On my Asus M4A785-M I can put up to 1200 O.C DDR2. .O.C. DDR2 1200 To attain top performance, ASUS engineers have successfully unleashed DDR2 1200(O.C.) MHz to meet the higher bandwidth requirements of the latest operation system, 3D graphics, multimedia, and Internet applications. *Ensure that you download and update to the latest BIOS at www.asus.com and purchase the memory modules listed in the ASUS official memory Qualified Vendors Lists (QVL). Does it means that I have to buy a specific memory that wear the specs and name 1200 O.C. or I have to install a 1066ddr2 and can overclock it to maximum 1200mhz ? Thx. I would like to boost my little system up on speed and could sell my ddr2-800 to some people around.