No I didn't share any logs because I've been too busy and the quickest solution was to go back to 6.4. Anyway, it's a Fujitsu Primergy TX100 S3 with a Xeon CPU and it has been working fine with everything except PVE 7 and I don't understand why the memory modules would cause any problems.
I had the same problem with 7.0 beta, and I had to go back to 6.4, see this thread:
https://forum.proxmox.com/threads/downgrade-7-0-to-6-4.91852/#post-400323
I gave up and reinstalled 6.4 and now it's working fine again. The only thing I noticed when I was still at 7.0 was that after I started a btrfs scrub it would only take 5-10 minutes for the kernel panic to occur.
Here is an output of lshw:
H/W path Device Class Description
======================================================
system PRIMERGY TX100 S3P (S26361-Kxxx-Vyyy)
/0 bus D3009-B1
/0/0...
Is it possible to downgrade Proxmox VE 7.0 to 6.4 without too many problems? I've been running version 6 for quite some time and it has been very stable but since I upgraded to 7.0 beta I get random kernel panics after an uptime of 1-2 days.