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Switching a front case-fan

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Hi,

The old front case-fan that came with my generic case was making a lot of noise so I got rid of it. It was connected only to the power supply, and not the motherboard. The new fan I got, by Zalman, which clearly states "case fan", does not have a connector for the power supply but only a 3-pin one for the motherboard. However, my motherboard does not have a 3-pin connection anywhere, but only a 4-pin connection, which is called "sys fan". It's near the front fan of the case (or rather where there SHOULD be a front fan), and the 3-pin connector might fit the 4-pin connection on the mobo, but the wire isn't long enough, so it's unlikely that it was meant for that.

Is there a way to convert the connection so it will connect to the power supply instead of the mobo? It seems that my mobo just doesn't have enough connections for 2 fans. It's a micro atx one, and I guess those cases only have one, rear fan.

Thanks.

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