Hi FFordEAL
I am Dave, an Independent Advisor, I will help you with this . . .
1
Are all the PC's the same Make and Model, or are those PC's installed from the same disk image with the same set of software installed?
2
On one of those PC's, please check to see if your PC is producing any minidump files, I will check those to see if they provide any insight into a potential cause of the system crashes . . .
Open Windows File Explorer
Navigate to C:\Windows\Minidump
Copy any minidump files onto your Desktop, then zip those up
Upload the zip file to the Cloud (OneDrive, DropBox . . . etc.), then choose to share those and get a share link
Then post the link here to the zip file, so we can take a look for you . . .