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This is the first in a series of videos about this handy little PWM circuit which can be used to control the speed of 4-wire PC fans and (most) server fans. The dialogue was unscripted so it might be a little unclear at times, but if you have any questions about the circuit please let me know in the comments and I'll do my best to address them in future videos.
You can read the article here:
www.overclocke...
And there is a very long thread about the experience here:
www.overclocke...