IIRC the extra pin on a 4 pin motherboard header may report if the fan has totally stopped, like a failure line, to tell the mobo to shut the CPU off. I've got an old 4 pin fan here from a '94 vintage ...

I'm planning on getting a Z77 motherboard when Ivy Bridge chips come out, so I'm currently planning my setup. I have a case with fans and water cooling waiting. I have 5 fans and 1 pump that all have ...

It was announced at the beginning of March, but now the Raspberry Pi Power over Ethernet (PoE) hat is out. Thanks to the addition of a new 4-pin header on the Raspberry Pi 3 Model B+, the Pis can get ...

Building a PC isn’t easy for everyone, but if you’re someone who’s planning on doing it soon or just a PC enthusiast who’s passionate about PCMR, then this is the perfect blog for you. In this column, ...