If a motherboard says 3466* O.C. will it easily run a module already rated at that frequency?

i would not recommend kits rated up to 4000 as they will have a higher latency. i would recommend a kit at or under the specified limit with as it will yeild good performance and you may be able to tighten up you latencies.

now for my diclaimer i rarely overclock ram due to its relatively low performance gains. make sure the ram recieves good airflow and has heat spreaders.

as always good luck and the silicon lotto still applies to ram

for most applications ram speed is meaningless. the exception being when you are at the bare minimums that they actually require(not what they say that they require). it may prove more beneficial to buy slower but cheaper ram and add more of it.

i would not recommend kits rated up to 4000 as they will have a higher latency. i would recommend a kit at or under the specified limit with as it will yeild good performance and you may be able to tighten up you latencies.

now for my diclaimer i rarely overclock ram due to its relatively low performance gains. make sure the ram recieves good airflow and has heat spreaders.

as always good luck and the silicon lotto still applies to ram

I agree faster isn't always better, tighter timings is much better then clock speed. Unless you plan on doing some heavy OC'ing on everything