![]() There are principally two types of fans for PCs: two-wire fans (three-wire if they have RPM feedback/tachometer), and four-wire fans, which are usually called “PWM Fans.” Both types of fan are based on simple 12VDC motors, however PWM fans have more complicated internal circuitry and usually very high quality motors which are controlled in an entirely different way (more on that later too). The 7V trick is very easy but I wouldn't recommend it because of the risks involved, so I'm not going to discuss it in this guide. Only SATA and ATX power cables carry all three voltages voltages below 3.3v are all regulated on the motherboard or on the components themselves. UNDERSTANDING THE BASICS: PSU VOLTAGESĪs many of you will know, there are only three fixed and regulated voltages available from a standard ATX PSU: 12v (yellow), 5v (red), and 3.3v (orange). I fried my cherished £300 Foxconn motherboard before I developed this wonderful rule of thumb (and indeed before I knew what common sense was) so I have definitely learned my lesson the hard way – let’s hope you guys don’t have to!Ģ. A good rule of thumb is this: get an el-cheapo PSU so that you have all the standard PC voltages at your fingertips and don’t have to worry about frying your shiny new 256GB SSD when testing circuits for the first time. ![]() Tampering with electronics is potentially dangerous - if not for you, certainly for your PC - so before you attempt anything in this thread please make sure you know what you are doing and employ common sense. So I’ll share all the controllers that I have built and tested myself and also other designs which I know to be very good but haven’t necessarily built. Since I’ve spent a lot of time in the past collecting and messing around with 12cm PC fans and making both simple and complicated fan controllers, I figured it’d be good to have a kind of “repository” of DIY fan controller approaches in one thread. OK, so for my 1000th post I thought I’d try to contribute something that people will hopefully find useful (rather than arguing with Nexxo about porn).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |