HP EliteBook 745 Maintenance and Service Guide - Page 60

UMA graphics models

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3. UMA graphics models: Loosen the four captive screws on the heat sink following the sequence stamped on the heat sink (1), and then remove the heat sink from the system board (2). IMPORTANT: Take extreme care when removing the heat sink and fan assembly. The heatpipe is very fragile and can be easily damaged and bent during removal. Do not remove the shielding from the thermal module or heat pipe. 4. Thoroughly clean the thermal material from the surfaces of the system board component (1) and the heat sink (2) each time the heat sink is removed. Replacement thermal material is included with the heat sink and system board spare part kits. Reverse this procedure to install the heat sink. 50 Chapter 6 Removal and replacement procedures for authorized service provider parts

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3.
UMA graphics models:
Loosen the four captive screws on the heat sink following the sequence stamped
on the heat sink
(1)
, and then remove the heat sink from the system board
(2)
.
IMPORTANT:
Take extreme care when removing the heat sink and fan assembly. The heatpipe is very
fragile and can be easily damaged and bent during removal.
Do not remove the shielding from the thermal module or heat pipe.
4.
Thoroughly clean the thermal material from the surfaces of the system board component
(1)
and the
heat sink
(2)
each time the heat sink is removed. Replacement thermal material is included with the heat
sink and system board spare part kits.
Reverse this procedure to install the heat sink.
50
Chapter 6
Removal and replacement procedures for authorized service provider parts