Is there a way to check pc component size compatibility before purchasing hardware.

Gecckk

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Jan 29, 2016
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I am about to buy a new CPU fan, the cooler Master 212 Evo, i have been looking over the dimentions of the fan and trying to determine if this will fit with my current RAM.
My case is big enough to hold the fan so thats not a problem but im worried that the fan might not completely fit in as my RAM might be slightly in the way.
So my question is, is there anyway i can check if the hardware is compatible for sizes. Sorry if i haven't explained this well.