Hey guys.. hope this doesn't seem like a repetitive thread but I feel like I may be blanking on something important. On my previous motherboard, MSI Z170A SLI Plus, I was able to achieve 4.6GHz at 1.39V and remain stable when playing games and rendering videos. This was with my previous Corsair Vengeance LPX 8GB Kit running at 3000MHz. On my new motherboard, the ASRock Z270 Killer SLI with my new 16GB TridentZ kit at 3600MHz (XMP on, 1.35V), I can't even get Prime95's Blended Torture Test started without crashing and getting a CLOCK_WATCHDOG_TIMEOUT BSOD. This is at 4.5GHz and 1.4V fixed. I haven't had an issue since I did the mobo/RAM refresh in November, but my gaming session yesterday stretched almost 8 hours and ended with a BSOD... I'm on the stock BIOS Rev 2.10 as I don't currently have a USB drive for the "CPU Security Update Rev 2.30" ASRock released https://www.asrock.com/mb/Intel/Z270 Killer SLI/index.asp#BIOS Do I need to back off the RAM speeds to increase stability with my higher core clock? Should I settle for what's stable right now (4.4GHz 1.39V and 3000MHz RAM 1.35v)? Felt like I'm missing something major here.. Edit: for clarity Edit 2: after a couple cups of coffee, I think it's the fact that Intel recommends 2133MHz or slower RAM. 3000MHz works fine, but it's unstable at 3466 or 3600MHz.