
ⓒ 2009 Zalman Tech Co., Ltd.
Ultra Quiet CPU Cooler CNPS9900A LED
7. Q&A
Please address cautionary notices regarding CNPS9900A LED installation.
Removing the motherboard from the case before installation of CNPS9900A LED is recommended. Particularly, if an air
guide is attached to the case, the air guide must be removed before installing CNPS9900A LED. To prevent possible minor
injuries during installation, please wear gloves if possible while handling the heatsink. Do not ingest the thermal grease. If
there is any problem with the product, please notify the retailer.
Can the CNPS9900A LED be installed on AMD Socket 754/939 motherboards?
Yes, but most/if not all AMD Socket 754/939 motherboards do not support PWM 4-pin fan power connectors, making it
necessary to utilize the available 3-pin connector.
Caution: Among the 4 colored wires (black/yellow/green/blue) of CNPS9900A LED’s power cable, the
black/yellow/green wires should be connected to the motherboard (if the blue wire is connected, the fan will not function).
※ PWM fan control feature will not function / same connection scheme applies to the Resistor Cable(RC33P).
What is the bearing type, lifespan, and maximum volumetric capacity of the 120mm fan?
Bearing type: 2 Ball-Bearing / Lifespan: 50,000hrs or greater
Volumetric Capacity: Minimum 25CFM@1000RPM / Maximum 62CFM@2000RPM.
If the cooler were to be installed with the airflow directed towards the PSU, would this cause any problems?
It would not cause any serious problems, but it is recommended that the cooler be installed with the airflow directed
towards the case’s rear side to facilitate optimal airflow within the case.
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