Ram - 2x4 gb 1666mhz with 2x2 1333mhz dual channel

fricfresh

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Jun 14, 2014
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hi, now i have in my i-5 4670, h97 asrock killer, these ram modules - 2x4 gb 1666mhz dual channel. Can i add 2x2 1333mhz dual channel - from my old pc? (but i bought that 2gb modules last year - so thy arent so old)
 
Solution
It is not about being old or new. It is about mixing different RAMs and expecting them to work. They may or may not work. It is better to use same/similar RAMs to ensure the compatibility and to save the hassle for manually adjusting the RAMs to make them work together.

Pl provide the models of both kits for checking purpose.
It is not about being old or new. It is about mixing different RAMs and expecting them to work. They may or may not work. It is better to use same/similar RAMs to ensure the compatibility and to save the hassle for manually adjusting the RAMs to make them work together.

Pl provide the models of both kits for checking purpose.
 
Solution
Why don't you just add another 2x4 Kingston DDR3 1600 MHz CL9? Anyway, at least get minimum 1600MHz RAM otherwise initially, your all RAMs will default to 1333MHz the lowest of all RAM. This is default behavior. In order to get 1600MHz, you may have to use XMP profiling or manually adjusting the speeds.