Yes you could! Better to slow the faster ram down than speeding the slower one up for stability. Like I said before they might very well work together but to me there is to much difference between them to risk instability.
okay, so it SHOULD work if i lower the cosair's timings to match, and match the voltages right? is there any link between non-dual channeled memory pairs? or should it work okay if neither of them is stresses and they are on the same settings? if everything is stable specs-wise, would the brand mix matter?
No the brand mix would not matter if they run stable together in the first place. I have had good luck with running different ram together in the past but they have always had the same default voltage.
thanks man, i'll give it a try! i dont mind lowering the timings on the corsair, its not a big deal. thanks again for the help