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 ...

Ok when did Intel start to use four pin conectors? It's been awhile and I am out of the loop,but I think it was a long time coming.<BR> <BLOCKQUOTE class="ip-ubbcode ...

Another common mistake is omitting the rear fan. This fan is one of the most important in the system because it sits in the ...

CPU_FAN and CPU_OPT are entirely different and serve distinct purposes in the context of a computer cooling system. CPU_FAN or CPU Fan Header is the primary 4-pin fan header on a motherboard, and it ...

The point of this guide is to show the latest and greatest in fan control technology on Intel Z270 motherboards and to help you understand what each brand has to offer in their high-end products. I ...

This post is a quick sequel of my previous article jam-packed with my personal experiences and observations while I was fiddling with standard 4-wire PC cooling fans. Today I will be talking about the ...

The CPU is the brain of any computer system, handling millions of calculations every second. All that computer power generates heat, though – enough to disable the delicate electronics. A CPU cooling ...