TL;DR 3-4 fans (2 intake, 1-2 exhaust, additional for radiators/GPUs) For these power-hungry monsters, you're looking at 3-4 fans minimum. And no, that single RGB fan that came with your case doesn't count as "cooling". This isn't just for the gaming crowd. Blender and After. Many fans are designed with customizable RGB lighting options, such as iCUE LINK fans, allowing you to create a visually appealing setup that reflects your personal style. So, how many fans should you install in a PC? If you're using a mid or full-tower case like the FRAME 4000D or FRAME 5000D. TL;DR 3-4 fans (2 intake, 1-2 exhaust) For mid-range gaming setups that run games at 1080p or 1440p, you'll need a slightly more powerful fan layout. If you run your PC for a long time, like for gaming or coding or programming, or even other highly demanding tasks like writing or composing, the PC, especially the GPU. Getting the number of case fans right is one of the simplest ways to boost your PC's temperatures, stability and in-game performance without spending a fortune. Whether you're building a clean, airflow-optimised rig with Cooler Master fans, or just trying to stop your GPU from throttling mid-raid. This guide gives you concrete, practical recommendations: how many PC case fans you should aim for, how to arrange intake vs exhaust, and what to change when your temperatures don't budge.