HP Pavilion dv4 Maintenance And Service Manual page 87

9. Remove the system board (3) by sliding it up and to the right at an angle.
NOTE: A heat sink is attached to the base enclosure to service the Southbridge component on
the bottom of the system board on computer models equipped with an AMD processor and a
graphics subsystem with discrete video memory. The thermal material must be thoroughly cleaned
from the surfaces of the system board (1) and the heat sink (2) attached to the base enclosure
each time the system board is removed. Replacement thermal material is included with all
base enclosure and system board spare part kits.
Component replacement procedures
79