3. Leave approximately 4 to 5 inches of the DC power and return cables end protruding
from the ferrite.
4. Snap the ferrite bead shut.
Securing Power Cables
1. Bend the system power cables, as shown in the following illustration, and attach to
the cable clasp.
Figure 21. Securing Power Cables
2. Plug the other end of the power cables into a grounded electrical outlet or a
separate power source such as an uninterruptible power supply (UPS) or a power
distribution unit (PDU).
NOTE: For better performance, ensure that the system is connected to a stand-
alone power source with stable power supply.
Important Points to Remember for Installing a Fan Module
• The Utility panel consists of four slots numbered from 0 to 3. Insert the fan
modules in slots 1 and 2.
• If a fan module fails, the system continues to operate without a significant
degradation in cooling capacity for a six-hour duration.
• The cooling system is designed such that, during normal operation, the fans
typically run at somewhere between 50 and 75 percent of their maximum speed
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