Apple MacBook Pro 17-inch (original, Core 2 Duo, 2.4GHz, Late 2007 CTO, Early 2008, and Late 2008) - Manual (Page 126)

MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Take Apart — Logic Board 126
Remove the twelve Torx T6 screws, shown. Two screws that secure the fan to the frame are 3.
indicated below under the LVDS cable.
Warning: Do NOT allow the logic board to flex at any time. Flexing the board can crack 4.
solder joints to components. Give special attention at the narrow neck of the fan cutout.
Use a black stick under the extension of the heatsink, just below the rear of the left fan, then 5.
slowly begin to lift the board, avoiding any flexing.
Note: The the logic board and heatsink assembly, along with the fans, should easily lift up. If
not, verify that all the appropriate screws and connectors have been removed.