I have several different sized Noctua silent fans around from other projects and was thinking of adding one to my GoTG LE to force airflow through the PSU (don't want to modify the PSU itself on a new game).

What connector do I need for the 12v AUX on the power board? Standard PC fan/accessory connections don't fit it and I'm struggling to figure out what to buy to make up a lead to connect to a standard 3pin fan connector.

It's also not that clear from the Stern docs what the 3pins are - looks like top one is ground, bottom is +12v, but what's the centre pin for? Is it speed feedback for fans, or something else?

Has no-one connected to the 12v AUX connector on a Spike system then?

All connectors here in the UK are metric pitch (mm) between pins, does US electronics use imperial measurements (inches) and any idea what the connector type is?

Yes, there’s a connector labelled “CN6 12v OUT FOR B.B. USE” which looks ideal to connect a silent fan to without having to open up the PSU as I have some spare fans about from other projects

Any idea where you got the connector? I have a lot of 'bits' and none of them fit, nor have the couple I've ordered to try.

Fair enough and I'll probably take a couple of your replacements (via Neil's group buy to the UK). Its just that I have the fans, so figured I'd use them and see if that stopped the (current) PSU fan going nuts. When both GoTG and Deadpool fans kick in, it is pretty annoying.