PC Modding

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A place for Modders to show off their PC mods that they have made or found online, discuss new mod ideas for their rigs and look for help getting their dream mod project off the ground.

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Using industrial fans for gpu deshroud mod. (alien.top)

submitted 1 year ago by [email protected] to c/[email protected]

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Per the title, I have installed some high cfm and high wattage fans on my 4080, it works fine but i'm currently using a manual knob to control the dc. Because I bought them without even a fan header, they just have 2pin connectors - does anyone know of any controller hubs I can use to both power them (.7a/8.4w per fan), and control the dc via a mobo header?

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[–] Ajen 1 points 1 year ago* (last edited 1 year ago)

The motherboard controls the fans with a PWM signal. Other posters are right that your motherboard can't power your fans directly, but if you can find a suitable MOSFET module (or solder up your own) you can use the signal from the motherboard without pulling too much current and damaging it.

Something like this would work well: https://www.ebay.com/itm/225225930694