I got myself a second hand Corsair HXi 1200w and I just LOVE it.
Last night I noticed the PSU got pretty hot without the fan blowing. I connected the USB cable, installed the software and voila, I was able to change the fan curve.
The software also shows how much power my GPUs are pulling. I love it.
Which software?
There's a USB port on the backof the PSU. Connect it to a USB port and install "Corsair Link". Looks like this:
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.legitreviews.com%2Fwp-content%2Fuploads%2F2015%2F01%2FHX1200i_DC_side.jpg&t=663&c=yByPLl69FYUBVA)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Flinustechtips.com%2Fmain%2Fuploads%2Fmonthly_2016_04%2F5723b1e22fa77_Sinttulo-1.jpg.568b8130f75583bfb2c704a8c324d91b.jpg&t=663&c=dow-fpGiNuXcoQ)
It's extremely handy to see/know how much power your connected components are drawing. Pretty cool stuff.