Here's an interesting RAM test on an Epox 8RDA+.
In short, the max ram clock achieved is 200 (2-2-2-5) synchronous, but can do 220 (2-2-2-5) asynchronous, with a single Kingston 512 3500 stick.
(Note how the reviewer didn't state what the Kingston RAM is spec'ed at, doh! He also maxed the Vdimm, at 2.9)
He could have simply linked the reader to
the Kingston webpage on HyperX memory, but no...