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    Hard hack to auto speed control a 3-pin fan?

    Yeah, I know about the 7V trick and I've used it on many fans, but I was hoping to get this specific fan to vary its speed with the needs of the CPU. It's easy to build a switch that will bump up to 12V when you throw it, but I don't trust myself to do this manually. I guess I was picturing pin...
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    Hard hack to auto speed control a 3-pin fan?

    It looks like I can't control the fan control mode in the BIOS, although that was a good idea! It looks like I'm stuck with PWM. But here's the thing: Can I just take the red wire from the fan that normally goes to PIN 2 (+12V), and hook it up to PIN 4 instead? Does the fourth pin just send out...
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    Hard hack to auto speed control a 3-pin fan?

    I installed a gigantic passive CPU heatsink in my case, and now that I don't have a CPU fan, the four pin CPU fan header on the motherboard is free. I have a giant case exhaust fan that pulls a lot of air over the CPU heatsink, and it's actually kinda loud when running at full speed. I would...