O/T ... Computer Issues , Part III

[Jurollo]

A while back I posted about my computer shutting down without warning and then getting errors when I attempted booting it right back up. After letting it sit for a little while I am allowed to boot again and eventually it would crash again. I just bought a new fan for the computer and installed it, however, I have a few questions about things I noticed.

1) the CPU fan doesn't run a lot when I have my computer on? Is this normal, are they supposed to only run for a second or two at first?

2) I noticed my CPU was loose, somehow when it was installed it didnt lock into the motherboard, could this have caused the crashing and/or overheating?

3) What is the normal temperature for a CPU? When I started it the BIOS' PC Health section says 30C, however that was right after I restarted it after sitting for a while.


Thanks for the help.
~Justin