i've looped memtest86+ v1.51 and the only error i've been getting (tried Vdimm 2.7,2.8,and 2.9 @ Rgone's [dfi-street mod] settings and now the only error i've been getting is one @ Test 5 (very last one, i was at 98 or 99%)
yeah, not bad at all really considering they'll be much better RAM than what you currently have, and with that board you should be able to OC them nicely since you can get like 4v on the dimm out of that thing can't you