Noctua NA-FC1 User Manual

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Noctua NA-FC1 User Manual
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Noctua NA-FC1 | User manual
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Dear customer,
Thank you very much for choosing our NA-FC1. The NA-FC1 is a compact, highly flexible controller for 4-pin PWM
fans that can both work on its own for manual speed reduction and also work in tandem with the automatic
motherboard fan control. Each Noctua product is double-checked for flawless operation by our quality control team
before it leaves the factory and I’m confident that you will be able to sense some of the research, attention and care
we’ve put into making this device.
Enjoy your NA-FC1!
Yours sincerely,

Noctua NA-FC1 Specifications

General

Product color	Black
Built-in display	No
Channels quantity	3 channels
Temperature sensor	-
Supported fan connector types	4-pin connector
Input voltage	5 - 12 V
Output current	3000 mA

Weight and Dimensions

Depth	21 mm
Width	48 mm
Height	25 mm
Weight	15 g

Summary

Device Components Overview

Speed Control Dial and Status LED

Details the speed control dial for PWM duty cycle adjustment and its associated orange status LED.

No Stop Mode Controls

Explains the push button and green status LED for the 'no stop' mode to prevent fan stoppage.

Input and Output Connectors

Describes the input connector for power/PWM signals and the output connector for fans.

Accessory Cables

Details the NA-EC1 input cable for connecting the device to the motherboard or power source.

Setup and Accessories

NA-AC4 Input Cable with Power Supply Adaptor

Connects device to power supply (S-ATA) and motherboard, forwarding PWM input and RPM info.

NA-SC1 3-Way Splitter Cable

Connects up to three fans to the output connector of the NA-FC1.

Setup Diagrams

Illustrates connection methods using NA-AC4 and NA-EC1 cables for fan control setup.

Modes of Use

Manual Control

NA-FC1 acts as a manual controller setting PWM duty cycle via dial without motherboard PWM signal.

Adjusting Automatic Motherboard Fan Control

NA-FC1 modifies incoming PWM signal to adjust fan speed, working with motherboard control.

Advanced Features and Notes

No Stop Mode

Ensures a minimum fan speed of 300rpm by preventing fans from stopping.

PWM Duty Cycle and Fan Speed

Explains the non-linear response and that NA-FC1 sets duty cycle, not specific fan speed.

Minimum Speeds and Behavior Below 20% Duty Cycle

Discusses fan behavior at low duty cycles and NA-FC1's limitations with minimum speeds.

Changing Fans and Lags

Instructions for changing fans and notes on lag when switching to 'no stop' mode at low speeds.

Downloads and References

File Downloads

Links to download the user manual and other optimized files for the NA-FC1.

References

Provides links to Noctua's official website and related manuals.