HP Model 712/100 - Workstation Handbook page 123

4. Remove the Fan/LED assembly.
Squeeze the clip on the side of the Fan/LED assembly cable connector to discon-
nect it from the power supply.
From the front of the unit, push in the LED until it disengages from the chassis.
Tilt the top of the fan toward the front of the unit until it disengages from the
mounting pins, then lift out the Fan/LED assembly, as shown in Figure 5–32.
NOTICE:
When replacing the fan, make sure that the arrow on
its side points toward the rear of the unit.
Figure 6–32. Removing the Fan/LED Assembly (C2943A CD–ROM)
5. Remove the power button.
Pull the power button straight off of the end of the plunger.
Field Replaceable Units 5–47