Basically i've recently wanted to install a second fan for intake to that the radiator fan for my liquid cooling would actually use cool air instead of old warm air that's inside the case already, I bought the computer in '11 and it came with a Thermaltake TT-1225 fan which the company had not installed i'm not 100% sure why.
TLDR: Bought computer, TT-1225 fan came with it company didn't install it. I tried installing it myself and the screws which had come with it were way too small and i'm unsure of what size screw to get.
I'd appreciate the help on this thank you guys.
EDIT - Could I get this moved to cooling, not sure why it arrived into CPU's.
TLDR: Bought computer, TT-1225 fan came with it company didn't install it. I tried installing it myself and the screws which had come with it were way too small and i'm unsure of what size screw to get.
I'd appreciate the help on this thank you guys.

EDIT - Could I get this moved to cooling, not sure why it arrived into CPU's.