Oh, sure. I had got too used to a processor that wouldn't clock much past 360 without higher voltage that I was determined not to give it. Meanwhile, I had KNOWN that I needed to bump up the VTT voltage when moving toward 400 Mhz, and I forgot to do it.
How or why I panicked and thought my BSOD's were due to memory, I cannot say. I intercepted my RMA to G.SKILL and had them simply send them back.
I'm only running these at 2.025V "set" and showing 2.04V. We can trickle-down on customer-reviews at reseller sites, but I had seen a few people saying they couldn't tighten the latencies at 800 DDR.
So again, no need to say "I don't get it." They, too, must not have known what they were doing.
Underclocking these and tightening the latencies isn't a problem at all. Tentatively, they're IntelBurnTest-approved at 4,4,4,10 at that voltage. I could trim them further if I bumped up the voltage another notch, but this looks to be about right.