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dennes

macrumors newbie
Original poster
Aug 13, 2024
2
0
I installed amd radeon 6900xt tuf gaming in my mac pro 2019.

1. Because the video card cooling is too long in the original, I had to make custom cooling for it, which I made from two noctua fans and heatsink.
2. Since the video card gives too little voltage to the fans, they do not spin at full power.

How to power these two fans other than the standard power supply in the video card?

Any ideas?

p.s. Maybe someone knows the correct name of the 8-pin connector on the motherboard (looks like pci-e power supply but half the size). I have an idea to make a custom cable and power the fans from it.
 

dennes

macrumors newbie
Original poster
Aug 13, 2024
2
0
These are the wires to supply additional power to the video card, which are already powering my video card.
My problem is not that I don't have enough power for my video card, it works perfectly, it's just that the connectors in it where the fans are connected don't give enough power to spin the non-stock noctua fans, so I want to connect the fans not to the video card, but to power them from the motherboard itself.
 

mattspace

macrumors 68040
Jun 5, 2013
3,341
2,975
Australia
These are the wires to supply additional power to the video card, which are already powering my video card.
My problem is not that I don't have enough power for my video card, it works perfectly, it's just that the connectors in it where the fans are connected don't give enough power to spin the non-stock noctua fans, so I want to connect the fans not to the video card, but to power them from the motherboard itself.
So can you (get a qualified person to) wire up a connector for the custom fans that can have an independent power line run to one of the other motherboard aux power sockets?
 
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