05-04-2012 10:47 AM
I have had numerous USB port problems and failures on these Lenovo desktops. These problems seem to be with the 2 USB ports on the front. Is this known? Is there a fix? They will work one second and fail the next. It does not matter what type of device - even a flashdrive might not enumerate. To make matters worse, sometimes the device will enumerate but then it cannot be queried with a terminal app (i.e. HyperTerminal). Any ideas? Thanks.
05-04-2012 01:17 PM
First of all check the cable from USB-Port to the system Board.
Second, check your system board as described here: http://forum.lenovo.com/t5/A-and-M-Series-ThinkCentre/Indeterminable-errors-on-NetVista-ThinkCentre/...
05-05-2012 07:47 PM
05-10-2012 08:32 AM
I'm using 3 of these machines, 2 of them frequently. One of them had an unreliable front USB port immediately (had to cover it with postit). I am actually testing USB devices, so it isn't typical use of connecting something and leaving it for a while.