Connecting Case Fans To Power Supply

Attach the case fan to the vented rear panel.

Connecting case fans to power supply.

Connect all the fan wires to the fan controller right. Yup just connect the fan controller to the two molex connectors as the fan controller gets power through 2 molex connectors. Also there is a very simple way of modifying the 4 pin molex connectors on your power supply to give your fans 7v instead of 12. This is important because your bios often tracks fan speeds to the cpu and may prevent the computer from booting if a cpu fan is not detected.

In this video i show you how to install new pc fans in your computer how to install a fan controller how to position your fans in the right direction for a. Locate any empty 4 plug power connector coming from the power supply and plug the. They supply the fan with less than 12v. You just have to be careful about dipping below the fan s startup voltage.

You connect case fans to the motherboard starting with the cpu fan label on your motherboard to your cpu fan. My motherboard only has one chassis fan connector cha fan and a cpu fan connector which means i will have to connect my case fans to the power supply. Welcome back to our how to build a pc guide with your motherboard and power supply now firmly in place it s time to get those fans going. These are 3 pin fans will they connect to this 4 pin speed.

Power supply unit is the corsair tx650 watt power supply non modular motherboard is an asus p7h55 m le motherboard i have 4 case fans and a cpu fan that i have to connect. Most cases these days come with a few fans pre installed usually one at the front to bring cold air in and one at the back to throw hot air out but adding more can be useful if you want a pc that runs cool and quiet. You just have to switch the ground and 5v wires on the power supply connector. Connect the fan to the power supply.