Forcing a video card fan to always run at full speed.
I have a video card, an R9 380 made by MSI. The fans don't appear to be working properly. I'm gonna try the card in another machine, just to rule some things out. They spin sometimes, but not very fast at all. It's so slow, I could actually count the blades on each fan while it's spinning. If I blow at the fan, it'll spin faster than what it spins while it's powered on.
I understand some fans are off until they reach a certain temp, but these two fans never kick on. The PC hard locks when we stress it a little and when we tried removing the video card, it was soooo freaking hot, we actually had to wait until it cooled down.
I believe they use PWM to control the speed of the fans on video cards, don't they? Is there anyway I could modify the video card to get the fans to always spin at max speed? Two fans connect to a small circuit board. The circuit board just connect the two fans together and has a wire coming off that connects to the video card. Both fans have a 4-pin header, but with one of the fans, one of the pins aren't being used for nothing. I think that's probably the pin that reports the speed. It's probably just reading the speed of one fan, not both.
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