HP ml350e gen8 v2 fan replacement

Anyone got the proper pinout of the 6 pin fan connectors in a HP ml350e gen8 v2? Possibly a datasheet for the 92mm delta fans it uses?

Stock fans are Delta PFR0912XHE-BC90 but i have seen -BC02 and -AM71 variants listed for the server.

I thought i had the correct specs for the stock fans and got some papst replacements with the same size, pwm and tach, but they spin full speed and ilo reports fan error. After emptying the internet, i guessed that stock fans where rotation detect instead of tachometer, and connected the supposed tach pin to negative, but got the same result. If anyone has some experience, please share… Or point me in the right direction if im in the wrong spot :slight_smile: