The Scariest Fan ever attached to a computer - Vasy Fan VF-390 EDF

The video centers on the VF-390 EDF, a massive 390 millimeter carbon fiber fan from Vasy Fan, as the hosts attempt to attach it to a computer system and test its capabilities. The opening segment establishes the scale and danger of the project, describing the fan as carbon fiber, capable of 10,000 RPM and an air output equivalent to a hurricane within the confines of a PC enclosure. They discuss multiple powering options, ultimately choosing high current LiPo packs to achieve the required voltage and current while maintaining manageable runtime. The crew builds a protective setup, wires the battery packs in 24S configuration, and uses a boost converter and an electronic speed controller to drive the induction motor inside the fan, all while monitoring temperatures and current. In the middle portion, the team tests the control systems and safety measures, explaining PWM (pulse width modulation) as the method to regulate speed. They perform cautious ramping tests with incremental power increases, capturing the moment the fan spins up and generates significant airflow inside a taped and guarded frame. The discussion covers inrush current, capacitor charging, and current limiting as essential to avoid catastrophic failures. Viewers witness the team iterating on mounting and containment strategies, including the use of duct tape and cross braces to stabilize the shroud and prevent the high-speed airflow from damaging components. As testing escalates, the hosts push toward higher amperage to evaluate the effect on CPU cooling, GPU load, and battery temperatures. They observe dramatic temperature changes and airflow behavior, noting that the heatsink experiences back pressure and that the air has to travel through constrained paths. The torture tests reveal spectacular data points, such as amperage peaking around 60 to 100 amps and the battery packs delivering sustained power under safety limits. Throughout, the vibe remains focused on engineering curiosity and spectacle, with the team repeatedly acknowledging risk and emphasizing that this is not a recommendation for do-it-yourself builds. The video closes on a reflection about the balance between impressive airflow and structural safety, hinting at potential future experiments while reminding viewers to avoid attempting such projects at home.

Topics · technology · stunts · hardware-testing · engineering · electric-vehicles · science-and-technology