Help with HP Proprietary PSU.

[RaptorHunter]

I am using an HP Proprietary PSU that only has 12V outputs as a power supply to my 3d printer. Everything works fine except for the FAN is always at 100% and really noisy.

I believe that because the PSU isn't connected to a mother board it doesn't control the fan speed. Is there a way to achieve this?

 

PSU connectors are white.

[orbitalbuzzsaw]

Probably not, unfortunately

[hconverse02]

Yeah you don't want to tune down psu fans if you could.  If the fans are ramping, the psu is hot and you don't want that to overheat.  You can't tune psu fan speed and definitely on a proprietary psu, don't try.

[RaptorHunter]

3 minutes ago, hconverse02 said:

Yeah you don't want to tune down psu fans if you could.  If the fans are ramping, the psu is hot and you don't want that to overheat.  You can't tune psu fan speed and definitely on a proprietary psu, don't try.

When connected to a mobo, the PSU controls the fan only increasing the speed when the load is high. I was hopping to achieve the same without having a mobo connected.

[hconverse02]

1 minute ago, RaptorHunter said:

When connected to a mobo, the PSU controls the fan only increasing the speed when the load is high. I was hopping to achieve the same without having a mobo connected.

The psu should detect the load by itself and change fan speed, I don't think connecting it to a motherboard that doesn't post will do anything.