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tripplec
Bit Torrent
Posts: 2,379
Registered: ‎03-08-2012
Location: CA
Views: 488
Message 11 of 15

Re: USB 3.0 Ports Not Working - Y580

ports will have some current or over current draw protection. Like a fuse or component that may sacrifice itself. The non working ports may have been over loaded and no 5V output available.

As for the working one an external USB 3.0 hub will give you additional high speed port. A new Mb still lot more money.
T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

Cephyr13
Fanfold Paper
Posts: 14
Registered: ‎09-09-2016
Location: US
Views: 486
Message 12 of 15

Re: USB 3.0 Ports Not Working - Y580

Thanks for the suggestions. I didn't see any fuses on the board when I opened up the machine, but I wasn't looking for them either. Does anyone know if there are fuses on board that can be changed on a Y580?

 

The only reason I don't get a USB port hub is because I don't want to lug it around with the laptop. But yeah, that is a cheap solution.

tripplec
Bit Torrent
Posts: 2,379
Registered: ‎03-08-2012
Location: CA
Views: 477
Message 13 of 15

Re: USB 3.0 Ports Not Working - Y580

Well the power is suppose to be resetable protection. I suppose you could meter Pin #1 to see if voltage is there as per the port assignment pins info.

See this articles for insight into implementation.

https://media.digikey.com/pdf/Application%20Notes/AMP%20Application%20Notes/USB_2.0_3.0_CP_Considera...
T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

Cephyr13
Fanfold Paper
Posts: 14
Registered: ‎09-09-2016
Location: US
Views: 476
Message 14 of 15

Re: USB 3.0 Ports Not Working - Y580

Quick question, though...if there's power at all to a port, then the computer will detect when I plug something into the port, even if it can't use the port properly due to a problem, right?

 

I just assumed the ports didn't have power since Windows doesn't detect when I plug something into the ports.

tripplec
Bit Torrent
Posts: 2,379
Registered: ‎03-08-2012
Location: CA
Views: 470
Message 15 of 15

Re: USB 3.0 Ports Not Working - Y580

I don't think thats the case it sees the chipset implementation of X number of USB ports and if its working fine. But at the connector back to some area of the motherboard something is not right IMO. Whether its visible or not and repairable is up to a tech.
T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

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