Remove the fan and heat sink:
1.
Turn the system board upside down, with the front toward you.
2.
Disconnect the fan cable
(1)
from the system board.
CAUTION:
To prevent damage to heat sinks and/or processors, loosen/tighten captive screws
in sequence as numerically labeled.
NOTE:
The heat sink and fan appearance and the number of screws may be different from the
heat sink and fan pictured.
3.
Loosen the four Phillips captive screws
(2)
and the three Phillips captive screws
(3)
that secure
the heat sink to the system board.
4.
Remove the fan and heat sink
(4)
.
NOTE:
Due to the adhesive quality of the thermal material located between the heat sink and
system board components, it may be necessary to move the heat sink from side to side to
detach it.
NOTE:
The thermal material must be thoroughly cleaned from the surfaces of the heat sink and
the system board components each time the heat sink is removed. Replacement thermal material is
included with the base enclosure, heat sink, processor, and system board spare part kits.
●
Thermal paste is used on the processor
(1)
and the heat sink section
(2)
that services it
●
A thermal pad is used on the graphics subsystem chip
(3)
and the heat sink section
(4)
that
services it (only on computer models equipped with a graphics subsystem with
discrete memory)
ENWW
Component replacement procedures
81
