I did a clean reset of my PC...and I have NOT effed WITH ANYTHING for 7 days.
I left my Bios on default settings...Ram is still at stock settings
I did NOT install the graphics card driver from AMD ...(Win10 gave me 19.9.1 WITHOUT Radeon Settings/Wattman/Armoury Crate etc etc)
The result, no BSOD's and my games (Prey and Tomb Raider) play on 'high/ultra' at 1440 with no issues.
(Windows still suffers errors in the background but thats just Windows being Windows).
The GPU now idles at 36c (was idling at 50c+) and while gaming (Prey and Tomb Raider) it maxes out at about 65c (was 85c +)
GPU fan idles at 1150rpm and during a game the fan reaches about 2200rpm (was 4200rpm or 100%).
I'm no expert but I think the problem lies in the Radeon software that comes bundled with the driver (Radeon Setting/Wattman/Armoury Crate) because the default driver that Win10 gave me --19.9.1-- has been working smoothly and my games are running smooth as silk.