On my case for a P4 2.4 msi 478 socket I have some heat issues. While trying to make sure my air flow was correct I noticed my side 120 side fan is working as exhaust as well as my 2 rear 80 fans. Should my side fan be blowing in. I dont have a front fan as my case doesnt appear to have room for a front fan.(May be able to change that). My cpu fan and heatsink blows air towards the back where my exhaust fans are. Also, is it possible my harddrive could get to hot where it would shut down my computer? Thanks for any input.