Locate the battery release tab on the underside of the G4. Slide the battery release tab to the left and lift the battery out of the computer. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s3310 Locate the battery release tab on the underside of the G4. Slide the battery release tab to the left and lift the battery out of the computer. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s3310 Remove the seven T8 Torx screws from the lower case. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s243 Using your thumbs, slide the lower case away from you. The lower case may stick in the front on a tab just above the center of the optical drive. Be careful as you work the case off, or you may break the thin strip of plastic just above the drive. Lift the lower case off. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s244 Your laptop should look approximately like this. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s245 Disconnect the large DC-In connector from the right side of the logic board. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s262 Remove the two T6 Torx screws from the DC-In board. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s263 Lift the DC-In board out of the computer by pulling up and away from you. If you don't have a 667 MHz computer, there is a fan in this location which makes it a bit difficult to remove the DC-In board. If there is a fan present, rotate the DC-In board slightly clockwise before easing it out at a slight angle in order to clear the fan clamp on top of it. /Guide/Installing-PowerBook-G4-Titanium-DVI-DC-In-Board/94/all#s264