Ok, that didn't work long. Just had another crash, this time with the Red Devil GPU. One funny thing though is that after the restart my two side monitors light up and my main didn't. So I turned the main on and off, and PC restarted again ?
Can the DP cable be faulty and cause the PC to crash/restart ? It's a new MB, new OS disk, a M.2, which I didn't have earlier. Thought it might been the GPU but having 2 of them with the same fault seems to be REALLY bad luck, especially since I had the Red Devil running for 3 months without a problem. And the 'crashes' started to happen at the beginning of March. (And thinking about it, the Sapphire was running fine for 3 1/2 month before the crashes started). The memory was bought in May last year so doubt it is that. The PSU is a be Quiet Straight Power 11 750W but I had that since May as well. Or can it be driver issue for me ?? I am using Windows 7 with the 18.12.3 drivers, which are old I know but had problem using the 19.3.1 drivers. Might try the 19.4.1. Although, thinking about it now, the 18.12.3 drivers is form December last year, and had no problem with them until these crashes started to happen.
If anyone has any ideas / suggestions, please fell free to post them. I rather not send away my GPU if that's not the fault, or can it be that I'm so unlucky that both my Vega 64's having the same problem ?