HP FM064UT#ABA Maintenance And Service Manual page 123

5. Set the airflow guide into the chassis.
a. Place the edge of the airflow guide (1) between DIMM socket #6 and the CPU heatsink.
Figure 5-39
b.
Route the power and data cables through the opening next to the internal bay (2).
ENWW
Installing the airflow guide
Removing and installing components 111