"50 mhz overclock on gpu, then games freeze."
I was having the same issues. It turned out to be unstable ram OC. Ram is extremely touchy on ryzen even more so on TR. My system would seem fine until I tried to run a heavy program then it would just crap out
software to get**
monitor software (after it opens click on sensors that's were all the good stuff is )
1) get
hwinfo 2)
Prime95 *it will most likely throw errors or crash *if it dose that means you have an unstable OC or system
now the fun part
check your settings make note of the important ones then
delete AiSuite ( I was personally have issues overclocking and keeping things stable because this software was doing its own thing in the background or not doing what it was told even with the version that automatically disabled HPET) *use the cleaner Aisuit3 found in the software side of these forums
reset your bios to default clear cmos
set your fan profiles save that profile in the OC section
everything on auto set your cpu core ratio to 40x restart
test with prime 95 check your temps with hwinfo
*play with lower voltages later but you should be under 3.9 my system hovered around 3.6 default somepeople are able to drop about 2.8 but im not that lucky (this saves power and lowers heat)
** if I did this with aisuit installed windows would freeze and crash after I deleted Aisuit it worked
if everything is good then
Save the profile in bios move onto ram
set docp ( this is were things get tricky )
most memory docp will boot to windows fine but cause funny issues (prime95 will freeze or throw errors if you can get that far)
typically with docp settings set you can drop your speed to 2933 or keep everything on default at 2133 until a new bios
*basically have to rinse and repeat till you find something that works*
** this post as allot of useful settings to play with
http://www.overclock.net/t/1636566/asus-rog-zenith-extreme-x399-threadripper-overclocking-support/11...-- hope this helps - there's allot more details to get into these are just bullet points .. I was really frustrated with my build too - in my cause it turned out AiSuit was doing things that I wasn't aware of or in control of