User Service Guide, Fifth Edition - HP Integrity rx8640 SEU

Removing and Replacing a Standby/Main Fan (Front) Assembly
The Front Standby/MStandby/Main fan Assembly is located in the front of the chassis. The fan
assembly is a hot-swap component.
CAUTION: Observe all ESD safety precautions before attempting this procedure. Failure to
follow ESD safety precautions could result in damage to the SEU.
Figure 5-8 Front Standby/Main Fan Assembly Locations
Table 5-2 Front Standby/Main Fan Assembly LED Indications
MeaningLED State
Fan is at speed and in sync or not at speed less than 12 secondsOn Green
Fan is not keeping up with speed/sync pulse for greater than 12 secondsFlash Yellow
Fan failed or stalled, has run slow, or fast for greater than 12 secondsRed
Fan is not present, or no power is applied to fan, or the fan has failedOff
Removing a Front Standby/Main Fan Assembly
1. Remove the bezel.
2. Loosen the two blue-colored captive screws (lower left and upper right sides).
NOTE: The blue captive screws are slotted so that a straight slot screwdriver can be used,
if necessary.
3. Carefully pull on the fan to detach it from the nine-pin connector.
4. Pull the fan away from the chassis.
Replacing a Front Standby/Main Fan Assembly
1. Visually inspect the replacement part for proper number and revision.
2. Position the fan assembly on the chassis fan guide pins.
3. Carefully seat the fan into the nine-pin connector.
104 Removal and Replacement