Johnny Ristovski :
shortstuff_mt :
They likely have timing and voltage differences that my cause issues. Using unmatched RAM like that is usually asking for problems. I could tell you a little more if you can provide the actual model numbers of the RAM you bought.
i think thats them
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Those are just general product pages. Without knowing the exact model numbers there is no way of knowing how compatible they are.
What are the system specs of the system you plan on putting these in? It looks like some of the Genesis RAM models requires a whole lot of voltage. If the RAM is designed to run over about 1.55 volts you will probably run into issues if this is going in an Intel system.