I'm not going to be the best person to help with a server problem, that's not an area in which I have any experience, so if any other analysts knows more then please take over.
That said, the dumps you uploaded are very infrequent (as you mention), the most recent is dated 5th Jan 2024 and the earliest is dated 24th Mar 2023. All of them however point quite strongly a a RAM problem. There are no third-party drivers referenced in any of them and the bugcheck codes, whilst different, are all indicative of RAM problems. Most of the BSODs occurred during some form of memory (RAM) manipulation. Even though you think the problem started recently, it does appear as though this has been going on for some time.
I would strongly suggest that you download
Memtes86 (free) and use that to test your RAM. Run Memtes86 twice, so when the four iterations of the 13 different tests that the free version does have ended, restart Memtest86 and do another four iterations. This is because it's generally accepted that Memtest86 needs 8 iterations to fully detect most potential RAM problems.
Alternatively, you could simply remove one RAM stick at a time and see whether it's stable on the other three. Swap the RAM sticks after some time so that you test it over time with each RAM stick removed. This will clearly show you whether a RAM stick is flaky - but it will take a long time because the problem is so intermittent.
There are a very large number of errors in your log for a potentially failing disk as well...
Code:
Source: disk
Date: 02/01/2024 19:17:47
Event ID: 153
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: Drewserver1.DREW.local
Description:
The IO operation at logical block address 0x0 for Disk 7 (PDO name: \Device\0000006d) was retried.
Disk 7 would appear to be the 32.7TB Microsoft Storage Space device (from the msinfo32 output) but I'm not 100% certain of that. Certainly one drive seems to be having issues.
There are a massive (overwhelming) number of errors related to the Windows Server Essentials Management Service, although I'm not at all sure whether this would cause a system crash or BSOD...
Code:
Log Name: System
Source: Service Control Manager
Date: 05/01/2024 15:14:32
Event ID: 7031
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Drewserver1.DREW.local
Description:
The Windows Server Essentials Management Service service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service.
I think you first and foremost need to test your RAM because bad RAM causes all manner of strange problems, so it's really not worth looking anywhere else until you know that RAM is not the problem.
