Question about Ram and possible problem

If I was to set my ram to cas2 and it says on the site for my ram that it is cas2.5 what kind of problems could occur?

you know when you overclock your computer too far and it wont start. thats probably what will happen. if it happens just pop up the bios battery and put it back in and your settings should go to default.

i've never heard of anyone killing ram but i'm sure its happened.

what about possibly getting corrupt files and such.. maybe stuff like that?

That only happens if you set your FSB too high.