I’ve only had 2 GPUs so far and just added 2 more so I wanted to start running the fans in the back. My Veddha frame (used) came with the 5 fans across the back. The power cords for each of them is connected to 1 black harness, which itself has 4 prongs. Honestly I don’t know where to plug it in though. I tried for fun one of the 8pin plugs on my evga 1200w (the top row of 4) and not surprising didn’t work. I don’t see where on the mother board this would go either though.
Since I bought this used possibly the previous owner had some other type of power supply this connector worked with? If that’s probably the case, I’m still not sure where you connect 5 fans… tried looking for a video but fan connection info isn’t a hot topic.
Appreciate any advice, something tells me its completely simple.