USB freezes when USB3 is attached. 10.10.4

[lamacchiacosta]

Hello,

since I upgraded to 10.10.4 I have an annoying behaviour from my USB ports:
when a USB3 disk is plugged in, any time I plug in another USB (2 or 3) my system freeze an I have to restart.
All USB devices have to be already attached when I restart my system in order to work properly.
I reinstalled my USB drivers from Multibeast after upgrading and this wasn't happening on my previous Yosemite versions.

 

[smidge]

having a similar problem with 10.10.5 on a GAz97x-ud5-bk

very unpredictable.