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That pinout is correct, but unless you want to hear a 747 on your desk, you will want to add one more pin lmao. The left two pins are the 3.3, otherwise known as PS_KILL and a ground pin (lower left is ground). The far right is what enables 12 volt power which is what the spades are (noted on the picture. You can get 3.3 out of other pins in the array). But, in the picture below, you are going to see two brown wires. You can either bridge those two together, or you can run the left brown wire and connect it to the other wires to slow down that fan. Don't worry about that top left pin with the red wire, that is just another ground pin. I had to use 3 grounds since I was just using jumper wires.
Here is a picture of a plug I made. Works great. In this one the white is ps_kill the red is ps_on and the black one is the fan speed reducer. You can put a switch on the white wire to turn the psu on and off.
You will need to float the DC ground on one of them otherwise if one shorts out, it will energize the case of the other one with household voltage. With your setup, you only need one. I think I made a comment that if you wanted to series them to get the HP's in the other thread. I would not do it on these unless you find all of the DC ground connections and isolate them.
So the PSU I'm getting is 700w. It outputs 12vdc @ 57.3A. This should be more than sufficient for the iCharger 206B. Am I correct? I'm thinking that if it is, then I will have another PSU for other applications.
This is about the only thing I found. It's the exact one I have. However, one of the comments stated that you need to connect the negative pins together and the positive pins together to achieve max current from the PSU. Is that true? Here is the video.
I just use jumpers rather than tearing it all the way apart to jump it like the video is showing. As for connecting all of the pins, I have never heard of doing that and have never done it and trust me, on my HP's, I get all the power I need out of it. I'm sure Dell is the same. Might need to run a stress test just to verify, but don't feel there is really a need.
Here is a link where a guy did one. The thing he did that I like is that he found the internal 12v + and -. He wired them to banana plugs on the top. This is how I did mine. Other than the banana plug conversion, everything else Tony has shown has been spot on.