[Hellfighter]

1.) the CPU fans basic or any small fans remove them and wipe them off by hand a clean rag.

they can go out of balance easy using a air can if there to much presser on them blades.

have power off and unplug totally.

2.) blown on them using a compressor 65-Psi water/oil free unit only (i own one it go as high 145psi lol) or a air compress can, keep away about 8-10 inches from Computer hardware when blowing them off.

3.) you can do the Hard drive under side and all everything connected to the mother broad.

4.) do not try to clean the CD/DVD Trays or A-floppy (insides) with any other then the CD/DVD disk cleaners you can buy.

you can wipe off the DVD/CD tray were they seat into with a clean dust free rag.