Normal
I spoke too soon. When testing with Prime95, I got several corrected memory errors in Windows (in the the Event Log). This is without any manual BIOS adjustments. HWINFO showed them as CPU cache L3 errors, which I don't think I have ever seen before. The memory address was different for each error, which I am guessing means it's not a case of bad memory. I pulled out two of the sticks, and everything seems OK now. Another weird thing was that I tested with 4 sticks with memtest86 and memtest showed only 32Gb available (and didn't produce errors). I need to do more investigation. The QVL for my motherboard doesn't have any 3200Mhz ECC memory on it.