HP Compaq nc8430 Maintenance And Service Manual page 116

Removal and Replacement Procedures
✎
The following screws should be removed, then installed, in the
1, 2, 3, 4 sequence stamped on the thermal plate.
6. Remove the four Torx8 T8M2.5×6.0 screws 1 that secure
the thermal plate to the computer.
7. Remove the thermal plate 2.
✎
Due to the adhesive quality of the thermal paste located
between the thermal plate and video board, it may be necessary
to move the thermal plate from side to side to detach the
thermal plate from the video board.
Removing the Thermal Plate
5–26 Maintenance and Service Guide