It allows me to achieve a 100% passive configuration in idle and with 1 fan 3d (gpu / variable frequency idle / full with ati traytools)
The final step after that is to change the hard drives by sdd (indeed they become the element "noisy" the pc).
A buy knowingly ie it must have a very airy box or leave it open box which is not a problem in full liability.
Avoid with boxes with a top location if the top panel can withdraw.
a good product that I hope will last in time