Is it not an ACPI driver? If not, you could write a quick fan driver! Is there a thermal sensor(s) you could read to see how warm they get?
-adrian On Tue, 2 May 2023 at 17:06, Dmitry N. Medvedev <dmitry.medve...@gmail.com> wrote: > good morning, > > Recently I have learned about the dmidecode program and found the address > of the FRNTFAN port in my HP Z420 machine: 0x0037. > Since I am a complete newbie, I would like to learn if there is a way to > read and change the value at this address. > I need a bit of guidance. > > *The context*: I have added 8 SAS disks to the machine, put noctua fan in > front of them and connected the fan to the FRNTFAN port on the motherboard. > It looks like the fan works, but I am sure the disks would benefit if the > fan produced more pressure. Which I fantasize I could do via changing the > value at the said address. > Not sure, of course. > > best regards, > Dmitry N. Medvedev >