Ok, so, I'm making the things with pauses (cause I have other issues to solve), what creates here some missunderstanding perhaps
1 - As I said before, I installed Linux Mint 20.1 Cinnamon version 4.8.6 in an intel pentium dual cpu e2140 @ 1.60 GHz x 2
2 - Also as I said before, from what I could take from the Linux OS that I "already" achieved to install in the PC mentioned above (the intel pentium dual cpu e2140 @ 1.60 GHz x 2 ), I took the Information "Distro / Ulyssa base: Ubuntu 20.04 focal"
3 -I think it doesn't matter from where I took the Linux OS. The important is that anytime I open the OS, when it opens, in my intel pentium dual cpu e2140 @ 1.60 GHz x 2 the system freezes in any point. Sometimes it freezes already after the OS was opened (for instance because I've tried to go to some firefox pages or because I tried to take some informations from the system itself "error codes","crash reports" or whatever ) or it even freezes before it opens the OS itself freezing at some point during the POST or the OS boot process.
So, I installed already severall times the OS in this PC, or better I can say it's already for some time installed, anyway I boot the Linux Mint always from USB pen drive, and it works till I try to go to some firefox pages or because I tried to take some informations from the system itself "error codes","crash reports" or whatever
The other machines I have, if I have them, doesn't matter here for now i think. The problems I'm having are with the intel pentium dual cpu e2140 @ 1.60 GHz x 2. As i said i'm mounting an Intel i5 in other case that will also have linux, but that will be another machine and will take place in a few weeks or months
And because i've already achieved the installation of Linux there, i suspect it can be Hardware. that's why i've already ordered a POST test card, i'm whaitig for it
Anyway, as long as I achieve more information I'll post it here
The problem is also, that i can't at this point take any error reports, because the system doesn't allow it
Moreover i can give the following information i took from the PC :
-"bei "POST" sometimes gives "ACPI Error AE not found, while resolving a named reference package element"
- when booted from USB the BIOS memory check funtions properly and gives no error
- When I make the system chek at the begining from the Linux Mint Start Page it gives "chek finished no errors found" but then again when I try to open the OS it freezes somewhen
- One question I'd like to post is :
Before with this PC intel pentium dual cpu e2140 @ 1.60 GHz x 2 from windows in Safe Mode the system almost never crashed (from what i can remember). I suppose the compatibility mode would be the same as safe mode for windows isn't it ?
If yes, anytime I try to boot in compatibility mode it freezes again even before it starts