RAM overclocking and best for my motherboard...

Go to your favorite ram vendor's web site and access their ram configurator.
Enter your motherboard, and you should get a list of compatible 32gb ram kits.

Intel cpu's are not particularly sensitive to ram speeds. past 1600:
http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3

If any overclocking is to be done, oc the cpu and leave the ram alone.

Be aware that you will need better than home premium to support >16gb.
 
Solution