Speak of the Devil, I got the dreaded "cpu overvoltage" error today - I yanked the plug out as fast as I could and cleared the CMOS - luckily there was no permanent damage. So I downloaded the lastest BIOS and installed it on my Asus X99-A - let's hope for my sake in doesn't happen again! I thought that for sure, Asus would have had this fixed by board #4. I didn't even run a stress test or anything this time. Asus has been silent about the issue, but it's a big deal on the ROG forums.
On a positive note, my AIDA64 memory benchmarks went through the roof with this update - over 70GB/sec read, write, and copy at 2666! God, I want to like this board, it's really is awesome in every way except for its penchant for torching...