80 REMOVAL AND REPLACEMENT PROCEDURES
System Fan Assembly
To remove the system fan assembly:
1 Disconnect power from the system (page 68), remove the access panel (page 74), and lay the
workstation on its side with the system board facing up.
2 Disconnect the fan plugs 1 from the system board.
3 Press in on the ribbed portion of the fan housing 2, rotate the fan housing down 3, and lift it out of the
chassis.
This illustration shows the system fan with an airflow duct installed. This duct is only required on
some systems. Refer to the next section for more information.
To replace a system fan assembly, reverse the previous steps.
Airflow Duct
The airflow duct ships with certain DIMM configurations on this workstation. If your system did not ship
with the duct from the factory, the duct is not required.
CAUTION HP only ships DIMMs that are electrically and thermally compatible with this product.
Because third-party DIMMs might not be electrically or thermally compatible, they are not supported by
HP.
To install the airflow duct (if separated from the system fan assembly):
1 Install the duct by pushing the duct toward the fan and snapping it into place. The duct must be
installed on the fan that is closest to the power supply. See the previous image for proper orientation.
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