I'm here to replace the CPU fan, three micro screws and its done........... Now just put everything back lol!
Three screws back in the motherboard where you marked the holes with a sharpie, plug flat DIN cables back in.Finish panel goes back over mainboard, plug cables in.I used pompressed air to clean food out of the keyboard assembly, insert the DIN cale into locking plastic fitting, slide keyboard back in(snap it down into place). Flip it OVA, again I keep all scews in the order they were removed. Insert all the surrounding screws on the backside of Lappy(none in the compartments YET). I use an erasier to clean the contacts on the memory, then blow it off with air. WIFI card screw and snap on wires, then the hard drive goes in. Plug snap in plug then three scews for the HD hold down. Both covers on, only thing left is the screws from the Battery opening. I wait to replace them frist i power the unit up make sure EVERYTHING IS WORKING!! Then i power down put in battery compartment screws.
BOOM, fire it up and see..........