Upgrading the Chassis 89
Replacing a 40 mm Fan To replace a 40 mm fan, follow this procedure:
1. Removethe three screwsthat secure the fan bracket and lift it out of the chassis.
2. Disconnect thefan power cables from both fans (A in Figure 31).
3. Slide the 40 mmfan module upward (B in Figure 31) out of the server.
4. Slide the fan(C in Figure 31) out of the 40 mm fan module.
5. When replacingfans, note the airflow arrow on the fan. The airflow arrow should be pointing
rearwardtoward the processors.
Figure 32. Replacing 40 mm Fans