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12-14-2018 04:33 PM
The front USB drives don't seem to be working anymore. I get a "Power surge on Hub Port" and none of the drives work. If I need to replace the I/O board there, how do I find the P/N and how difficult is it to install? Do I need to take out the hard drives to get over to where I need to replace the board?
12-14-2018 10:29 PM
"Power surge on Hub Port" message means that a connected device or devices is drawing current over the specified limit of the USB Hub. remove all connected USB devices and try them one by one to insure none of them is damaged or shorted.
if all work by themselves, you will need to split the devices between the front and back usb ports or buy a POWERED USB Hub and connect this hub to the z840, and then connect the usb devices to the powered hub
12-20-2018 10:31 AM
I don't have any devices plugged into the front I/O. All the devices are plugged into the back, whcih works fine. None of the ports work. Seems like it shorted out or something, is that possible? Would I stiull be getting the 'power surge on Hub' error message?
12-20-2018 10:52 AM
the front I/O panel is not two expensive used (if you can find one) the problem is this may not fix the problem and if not the issue is motherboard related
i would carefully inspect the front usb ports and see if any pins in the socket(s) are bent for usb 3.0 (blue color) there are 6 pins
for usb 2.0 white/black there are only 4 pins