Hi, i have a problem with my usb 3.0, when i put an external hard disk 3,5" with just usb 3 cable, after some second he disconcet and reconnect after, and do the same thing again and again, with usb 2.0 no problem, the other problem is when i put a usb key USB 3.0 the tranfert files capacity is very slow, about 40mo/sec, i aleardy tested the hard disk and the usb key to an other computer, its work fine, i bought a new power supply (750w), still have the same probmeù, did i misse Something in the bios ?
Thank you
