Well, I should have more thoroughly followed this advice and I could have saved myself over a week of headacheszigzag wrote:If i were you i would start seing which track is to blame, i.e. I would start disabling deleting one by one to see if you can identify which one may be causing it. You will know in a matter of minutes.
Let us know how it went
Turns out it was not hardware related, but a 3rd party plug-in that I had deeply hidden in many of my racks. (that's why I didn't find it when I deleted tracks, it was on pretty much all of them. And I was so used to having it and had used it for so long, that I never suspected it.)
After I had deleted it everything worked smoothly again. Meaning no CPU spikes, no crashes.
The Drive symbol still lights up from time to time, who knows maybe something is afoot there as well, but it was definitely not the cause of this issue.
Thanks you guys for all the suggestions and tries to help. Much appreciated