Okay so i have a Phenom II x-4 840 and i it supports 10600 but it doesn't say a thing about 10666 so i was wondering if any of you guys know if it does and if i do combine them if my memory or cpu will get damaged?
whta your mobo? .. try manual in bios setting RAM , the combine RAM (mix) as long as same spec speed clock/CL and voltage no problem ... 10600+10600 =dual 1333
I got the 820 model and it did go 1333 no problem and you can set it higher still but you won't see any real gains. Don't bother with pc ratings like 10600.