Electronics failure caused USB ports to fail

Thread Starter

paulskirk53

Joined Sep 8, 2021
27
Hi, I am not sure if this is the right place to post about this, but if not please could anyone suggest where to post?

The problem is that today, I connected up my two AVR4809s as usual to my NUC6cAYH and there was a problem which fried the power cabling attached to an FTDI I use for serial comms with the 4809. The USB ports on the NUC no longer work. Is there anything I can do to resurrect the USB ports?

thanks very much for thoughts.
Paul
 

bassbindevil

Joined Jan 23, 2014
457
USB ports sometimes have polyfuses which are designed to blow if the power is overloaded. That would be something to check. You could also try plugging in a powered USB device (that doesn't need 5V from the port) and see if the port works.
 

Thread Starter

paulskirk53

Joined Sep 8, 2021
27
USB ports sometimes have polyfuses which are designed to blow if the power is overloaded. That would be something to check. You could also try plugging in a powered USB device (that doesn't need 5V from the port) and see if the port works.
Thanks for this. Yes the thought about a powered hub occurred to me as well, but sadly no difference. There is a burnt chip on the MB near the USB socket. I could get it reapaired by a specialist MB repair service, but the overall cost is the same as buying an entry level NUC.
 

Thread Starter

paulskirk53

Joined Sep 8, 2021
27
Ah, a very good point - just had a look and there are two headers....I think I've got some old cables in a box somewhere. Thanks very much for thinking of this, it may turn my hi tech ornament back into a working computer. I'll post back....
 

Thread Starter

paulskirk53

Joined Sep 8, 2021
27
I acquired some cables from the U.S. that would fit the NUC header - they are a smaller size than the usual motherboard headers. I really thought it would work, but sadly not. As the NUC is used in a remote setting, I had configured it with Teamviewer and so could access and run Device Manager (Win 10) to inspect the USB host and com ports. It just repeatedly reports too much current being drawn from the USB - that must be the failed one. Perhaps the motherboard headers need to be activated in the BIOS and I can't get in there unless there's a way which doesn't use the KB. I'll do a bit of research on that.
thanks for the thought,
Paul
 
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