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 ...

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 central processing unit on a Dell computer executes programming routines and performs all of the logical calculations, and as such, produces a lot of heat. Attached to the CPU is a heat sink ...

A broken fan can cause your computer to overheat and damage internal components like the CPU, video card, hard drive and motherboard. Computer fans usually adjust their speed depending on the heat ...

Use the following solutions if your CPU fan is not spinning but you get no display on your Windows computer, use the solutions provided below: Preliminary fixes Reset BIOS by clearing CMOS Reseat CPU ...

I recently got 2 Optiplex GX620 SFF (Small Form Factor) units. Very nicely packaged systems. I like them a lot and have recently tried a processor upgrade to the 65nm Presler D 915 dual core cpu. Very ...

In this guide, we'll show you how to set your PC to respond to coolant temperature, rather than the CPU temperature. Why would you want to do that, you might ask. It seems logical to set your fans to ...

Heatsinks are the unsung heroes of cooling down your PC, as they prevent overheating by transferring heat away from important components. The CPU and GPU can generate a lot of heat, especially when ...

Heatsinks and CPU fans can be very large, limiting the hardware configurations in any computer, but what if you could condense and combine them into one component? At CES 2015, startup CoolChip ...