I was playing away for over a week with the new system and no problems.
Just since last Thursday or Friday the system freezes after about 20min in either Mass Effect Andromeda or Fallout4 (only two I tested). This can be in the middle of combat or just standing/walking somewhere, but nearly exactly just after 20min.
I always use Reshade and I always test with ReLive recording (the first week I made 2-3hours long recordings without issues in Inquisition and Andromeda).
Temperatures are fine, CPU peak 75C package in HWMonitor but not sure if the readings are correct (CPUTIN peak 40C), GPU peak 50C, they are in the same loop, SYS and MB peak ~40C.
Vcore voltage max 1.550V.
MSI AMD 390X
MSI X370 Titanium
32GB Memory @ 2133Mhz (it can up to 3GHz)
No hardware was moved or changed since.
In the meantime I tried every AMD driver from 16.x to 17.4.1
I tried BIOS from 1.30 through 1.31 and 1.41 (which was since pulled)
I tried several different BIOS settings.
I reinstalled the games.
I reinstalled Windows 10 64bit with all drivers
I ran CPU and GPU stresstests without issues.
Any ideas welcome
If I record in 20min chunks... I just played 20min (1.12GB), stopped and restarted recording, played another 20min (1.51GB), stopped and restarted recording, then forgot, last check at ~17min but the filesize indicates another ~20min (1.58GB) and freeze...
Settings for recording are not too fancy: 10MPS, 720p, 30fps
p.s. nevermind, it was a faulty power cable to the PCI-E card that caused it.
Cable changed and recorded two hours of Fallout4 wiithout problems.