Can I mix 9-10-9-27 @1.5V DDR3 8GB that is set to 1866MHz with 2pieces of 4GB DDR3 11-11-11-27 @1.5V? That is set to 2133MHZ? Suggestions on how to make it work?


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John Doe answered

It's a real bad idea to mix RAM of different clock speeds, I doubt you could get it to POST at all. The system can't run with some of it's RAM running at a different speed than the rest of it.

Really it's not even reccomended to run RAM off different sizes or even different brands, usually you should be symmetric in your RAM installation, i.e. 2x4GB, 2x8GB, or just 1x16GB.

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