i have corsair dominator 1066 mhz 4gb ram and have my core 2 quad q9300 overclocked to 3 ghz . But it shows the speed of Ram in the task manager as 667 mhz . why is that? Cant it be working full at 1066 mhz
Go into the BIOS, and look for the memory settings, and change from auto to manual.
Then set the memory.
I don't know all the BIOSs in the world, but they are not hard to figure out.