This might have come up already, but with 31 pages of thread I'm not likely to find it.

Is anyone else having issues with dropping RAM in Windows? Seemingly at random, I'll boot into Windows to see "6.00GB (xGB usable)" in System Properties, and games etc. only have access to that reduced amount of memory. CPU-Z and every other utility I've tried shows the full 6GB, but Windows only thinks that lesser amount is "usable". I can get it to see the full amount rebooting a few times or by swapping around the DIMMs from slot to slot, but the problem just reoccurs with the new configuration until I swap my RAM around again. I've tried Memtest, which passes, and boosting vTT and vCore hugely, but it doesn't seem to do anything.