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sundog925

macrumors 6502a
Original poster
Dec 19, 2011
958
1,029
I have an iMac early 2009 20 inch and just installed 2x4 GB 1333mhz sticks and its noticeably faster. How can I tell if these sticks are under clocked to 1066mhz or running at full 1333mhz?

Also, is it OK to continue using these sticks or take them back and get 1066mhz?
 
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