ARCTIC F Pro PWM series is a PWM controlled fan. It will adjust the fan speed according to the PWM signal received. Besides the normal PWM function, ARCTIC F Pro PWM also equips with PST (PWM Sharing Technology) that shares the PWM signal up to 5 fans.  In this respect, only one setting in BIOS can control the whole system ventilation. Like others ARCTIC COOLING products, it designed with patented vibration absorption, low noise fan impeller, fluid dynamic bearing and come with 6 years warranty. Below is the guideline showing how to make use of the PST system. It is explained into 3 parts: (1) Cable connection (2) Fan speed reading

We will use 4pcs ARCTIC F8 Pro PWM and 1pcs Freezer 7 Pro Rev.2 for the demonstration

Let’s have a closer look

Step 1: Connect the 4-pin plug of the ARCTIC F8 Pro PWM to the motherboard

Step 2: Connect the 4-plug of the second fan on the sharing plug

Step 3: Like in Step 2, connect the third and the Fourth fan

Now, we used ONE PWM plug on motherboard and share the PWM signal among 4 case fans.
Next step is about the fan speed reading for this kind of connection.

To further explain how’s the connection works, we take out the fan from the motherboard:

If you connect the sharing plug from last fan to the CPU cooler, then the CPU cooler fan speed reading will be referred to the CPU cooler socket.

To further explain why the fan speed is connected in this way, let’s take a look on the cable:

In order to read the case fan speed, the 3 Pin plug with the yellow cable can be plugged into a fan socket on the mainboard.

If the fan shall be used as standard PWM fan without using the PST function, the 3 Pin plug with the yellow cable shall be connected to the 4 pin sharing plug.