Have an Asus X99-AII MOBO and have been running 32gb (8x4) of Corsair Vengeance memory no problem for months now. A couple of weeks ago at random I noticed that my total memory was only 24gb, and that slot #2 showed empty.
I also noticed that at around the same time my computer would give a false starts every time I turned it on the in morning. Lights would turn on and fans spin when power button pressed, but then it would turn back off for a sec, then restore power a sec later and boot normal. (btw, this went away when I removed a 4th stick and ran only 3 sticks)
Long story short, I moved the ram all around trying different different slots, sticks, and quantities - result: all sticks seem to work and all slots work. The only problem is that I cannot get all four slots/sticks to work at the same time, only 3 max.
I even bought brand new ram too (DDR4 HyperX Predator...spent small fortune for those. they look pretty sweet tho )...and same issue.
updated bios and still nothing.
I feel like it might be a setting somewhere, but can't seem to crack this. Also - was trying to find something in bios that would limit my max capacity, but every setting pretty much set to auto at this point.
any thoughts/help would be great!
ok yes, I do have 24gb usable memory right now which is more then enough, but still very frustrating to have an extra 8gb stick sitting in my computer that I can't touch!!!
thx guys