No way in hell I'm reading that wall but I skimmed quicky and didn't see the word RAM so try this:
-Remove all the unnecessary crap like USB flash drives, external, etc. Leave mouse keyboard monitor power cables
-Unplug every CD/DVD/hard drive/SSD and just leave the main boot drive
-Remove all but one of your RAM sticks, see if issues persist
-If issues persist, test the next RAM stick in the same slot, and keep doing this unless issues resolve
-rule out bad ram slot by doing the very same previous step on ram slot number 2
If issues persist it's likely the motherboard. 9/10 times a system won't even start booting if cpu or power supply is bad
Gl