Got 2 Noctua NF-A14 iPPC-2000 with 3 pin connector. Both work on the ‘additional fan connector’ - the one next to CPU fan connector - but not on the ‘chassis Fan Connector’. I am using the Corsair CP-9020186-UK SF750 as the PSU and Ubuntu 21.04 as the OS.
- OS: Ubuntu 21.04
- GPU: ATI Radeon HD 5570 1GB
- Storage: Samsung 970 EVO Plus 500 GB PCIe NVMe M.2 (2280)
- PSU: Corsair CP-9020186-UK SF750
Edit: Got fan 2nd working using the PSU directly with a Molex-to-3 pin fan adaptor. If is a hardware fault, at least now I don’t have to RMA it.