I am adding a fairly large NVMe drive for which I’ve added a heat sink that has its own small 12V 3-wire fan. Is there a location on the board from which I can get power for this? Any suggestions as to where or how I can plug it in?
Power for NVME SSD heatsink fan?
There is no 12V pin available, you can use the 5V from the GPIO header if your fan is 5V.
It’s 12V by design unfortunately, with a standard 4-pin header although with this heatsink fan only 3 pins are used. There is 12V available from the USB-C power supply, so in prinicple it could be made available if in a future design by adding a standard PWM header to the board, ideally connected to one or temperature sensors under the NVMe drive location. For now, I will use a USB-C power splitter and a separate USB-C to 4-pin adapter.
What voltage is used with the existing CPU fan?
Answering this question: I took the fan off of the heat sink of one of my boards and confirmed that it is a 5V fan on the official heat sink. Thus I will have to look for a heat sink with fan for my NVMe M.2 drive that has a 5V fan and try to rig a Y adapter for powering it from the existing 4-pin header.