Connecting Case Fans To Power Supply

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.

Connecting case fans to power supply.

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. 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. 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.

You just have to switch the ground and 5v wires on the power supply connector. Locate any empty 4 plug power connector coming from the power supply and plug the. They supply the fan with less than 12v. Your graphics card often has a fan or two of its own.

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. Connect the fan to the power supply. Attach the case fan to the vented rear panel. 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.

Yup just connect the fan controller to the two molex connectors as the fan controller gets power through 2 molex connectors. These are 3 pin fans will they connect to this 4 pin speed. 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. Yup connectors as labeled fan1 fan2 fan3 etc dont need to buy any molex cables and stuff right.