S Speedtoy macrumors member Original poster Jul 10, 2008 58 0 Nov 28, 2009 #1 As long as I stay in matched pairs, can I mix 600 and 800mhz RAM in my system?
S Spacedust macrumors 65816 May 24, 2009 1,008 161 Nov 29, 2009 #2 Yes, it's not a problem. All of them will work 667 MHz.