4 pin fan controller7/29/2023 ![]() ![]() I've provided two stripboard layouts here. In my example, I even had a 3 pin socket I Alternatively, a 4 pin fan extension cable (the 3 pin plug still fits in the 4 pin socket). If you can't find the connectors, buy a 4 pin to 3 pin adaptor, and chop it in half so the circuitĬan be placed in between. The same pitch (2.54mm) but it's easy to put them in reverse. The challenge can be getting the fan headers in the first place - because you need a 4 pin male header, and a 3 pin female header. Postage), with cost rapidly falling depending on how many you build. It was quick and simple to build on stripboard/Veroboard and works perfectly, taking less than an hour to build and total cost less than £3 (most being This is a logic level MOSFET, other alternatives areĪvailable (like NTE2985, IRLz24 and FQP30N06L mentioned). ![]() Having plenty of 10k resistors and 5.1V Zener diodes, I decided to order some IRL530N N-channel MOSFETs. Note fan wire colours are a guide only and may not match My addition to it is a couple of easy board layouts you can consider, and a confirmation that it works This isn't my own design, it's lifted straight fromĪ TechPowerUp forum post and a similar version is onĪ post on Electrical Engineering Stack Exchange. System fan reduce to a nice quiet speed is welcome, but it has the ability to pick up speed when you stress the CPU or other hardware causing the internal Only premium or more recent motherboards have the ability to speed control 3 pin fans, and it's a nice ability because when the PC is mostly idle, having the I have a couple of old Intel H61 based (released 2012) Mini ITX systems where the motherboard has 4 pin system fan header, but the case contains only 3 pinįans, and thin varieties that are hard to get in a 4 pin version.Ĭonnecting the 3 pin fan to the 4 pin fan header makes it run full speed, all the time. The quick and simple PWM to standard 3 pin fan controller
0 Comments
Leave a Reply. |