Hi, PC Specs OS - Dual boot of Ubuntu 20.04 and Windows 10 Case - Cougar QBX CPU - AMD Ryzen 9 3900x CPU Cooler - H100i XT ( sits on top of the case Motherboard - Asus Strix B550-I ITX GPU - 1080ti PSU - Corsair SFX 600W I recently won on ebay a 1080ti that had the G12 adaptor and a corsair H55 attached to it. Looking at the the new gpu it doesn't have any of the fans connected to the gpu board (H55 aio fan or the small NZXT fan attached to the board). I've managed to give power to everything via my motherboard chassis 4 pin - which has a 1 to 5 4 pin adaptor, but the gpu believes it's fans aren't running at all (guessing due to nothing being connected). In addition to this the fans for this gpu are running all the time but I'd like to shut them off at idle or atleast be able to control them via my gpu temps software. I'm planning to replace the H55 with a supported 240mm aio so I can run the fans lower and hopefully get rid of the old pumps loud coil whine. But before doing something that might now work I wanted to confirm what the best approach is to connect everything up. At current I have a 240mm aio used by my CPU which uses my motherboards onboard USB 2.0 header, the aio 4 pin header and the CPU 4 pin header (using the Y cable provided by corsair to power both fans). So questions: If I were to connect a newer model 240mm aio to the G12 am I correct thinking I can attach the USB 2.0 header to my USB 3.0 header on the motherboard, using an adaptor? From there can I power the pump via my chassis 1to5 4 pin adaptor and plug the 2 aio fans into the GPU (as there are 2 3 pin headers) or should these also just remain plugged into the 1to5 adaptor, whilst the G12 fan is plugged into the board? Finally would I need to use the small G12 fan that's been provided, given my ITX case has the GPU pretty low to the case base and I could have a 120mm fan applied to the case base pulling air in and onto the GPU, which I'd assume would be quieter and more efficient than running a small fan?