Apple imac 17in 1ghz Servicehandbuch
iMac (17-inch Flat Panel, 1GHz) Take Apart - 63
Fan Retainer Bracket (under fan)
Remove the four screws connecting the fan bracket to the chassis (Faraday cage).
Lift the fan bracket out of the chassis. Note the orientation of the neck cables (see
below) in the fan bracket before removing the cables. For orientation purposes, the
drive door would be on the right.