![]() ![]() Always power off and unplug your PC before making any connections.Follow the specific instructions for your controller. Some fan controllers allow you to adjust fan speed manually, while others may have automatic temperature-based control. Step 2: Depending on the model, you’ll either connect it to a Molex or SATA power connector from your PSU. Step 1: Plug your 4-pin fan into one of the available fan ports on the controller or hub. Some come with Molex connectors, while others are powered by SATA connectors. You can purchase a fan controller or hub, which is a dedicated device for connecting and controlling multiple fans. It’s a convenient method, especially when you’re out of available fan headers on the motherboard. If it isn’t, double-check your connections.īy following these steps, you’ll be able to effectively utilize Molex connectors to power your 4-pin fans. Once everything’s connected, plug in and turn on your computer. Use zip ties or twist ties to secure any slack. Step 4: Make sure wires aren’t hanging loose where they can get caught in other components or obstruct airflow. Step 3: Next, connect the Molex side of the adapter to a free Molex connector coming from the power supply. Step 2: Attach the 4-pin connector from the fan to the 4-pin side of the adapter. This will have a 4-pin connection on one side and a Molex connection on the other. Step 1: If your fan doesn’t come with a Molex connector attached, you’ll need an adapter. It’s built to plug into a fan header on the motherboard. Locate the 4-Pin Fan Connector: This is usually a smaller connector and comes directly from the fan.It’s a larger plastic connector, often white, with four pins inside. Identify the Connectors: Familiarize yourself with the Molex connector’s appearance.This ensures there’s no risk of electrical shock during the process. Safety First: Before anything else, make sure your computer is turned off and unplugged from the power source.Step-by-Step Guide to Connecting a 4-Pin Fan Method 1: Using Molex ConnectorsĬonnecting a 4-pin fan using Molex connectors might seem a bit tricky at first glance, but with the right approach and careful attention, it’s a straightforward process. This method is ideal for those who prioritize quieter operations. It allows for PWM control, meaning the fan’s speed can be adjusted according to your system’s temperature. Motherboard Headers: Connecting your 4-pin fan to a motherboard header is a more versatile approach.However, they don’t allow for speed control, and fans connected this way will run at full speed. They offer a direct connection to the power supply. Molex Connectors: Molex connectors are the older and simpler method.When it comes to connecting your 4-pin fan to a power supply, you have two primary options: Understanding the functions of these wires is crucial for successful installation. The Components of a 4-Pin Fan A standard 4-pin fan consists of four wires: black (ground), yellow (12V), green (PWM signal), and blue (tachometer signal). ![]() ![]() Unlike their 3-pin counterparts, they offer more precise control over fan speed and provide quieter operation. ![]() 4-pin fans, often referred to as PWM fans, are advanced cooling solutions commonly used in modern PCs. Before we can tell you how to connect, you have to know about 4-Pin Fans and its wires. ![]()
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