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Posts: 115
Registered: ‎10-03-2011
Location: Ontario, Canada

T40 USB issues

I have been having issues with my T40 for a while, they would cut in & out, not recognize hardware, and get a pop-up saying to use a 2.0 USB port. I reformatted and I still get the pop-up telling me the hardware would perform faster in a 2.0 USB port. What is wrong with my T40s USBs

Lenovo A1-07, T40 Thinkpad, T400 Thinkpad, iPhone 4s
Posts: 7,628
Kudos: 757
Solutions: 799
Registered: ‎11-23-2007
Location: USA

Re: T40 USB issues

Your T40 is suffering from a failing SouthBridge chip, a very common problem on these machines.


Having the chip professionally re-balled is the only option apart from motherboard replacement.



In daily use: T43pSF, R60F, T61, X301

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