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[Bernhard]

My Gigabyte PS has got installed "P-Tuner" software that is linked to the PC via a USB port. This little package supplies all the usual data with regards to power usage, Voltages etc. A very handy piece of software when it works. The problem is that it only connects randomly, maybe once in 15times that I boot the PC. The rest of the time I get a hardware connect Fail message. Windows 7 reports the following:

tv_ConfigMgrErr43
A device has a configuration problem that prevents it from working properly.
The device, Unknown Device, is reporting "tv_ConfigMgrErr43". This device will not be available until the issue is resolved. The Plug and Play ID for this device is USB\VID_0000-PID_0000\5-2CAF5E97-0-2.

The Power Supply itself works perfectly. My suspicion is a bad cable connection??? I have re-plugged it onto different USB ports and then it seems to work the first time I boot, but subsequently reverts to the Connection Failure. Gigabyte suggested to try it on another PC. I don't have another one and really didn't feel like taking it out to test it the dealer.

Does anyone know of any issues with USB port connections that may cause this error or possible intermittent connection? Yes I did load the latest driver release for this P-Tuner software. So that one I can eliminate. This seems hardware related.

[Mike]

If it is the MOBO connections, you would have issues with other USB devices.  Do you have issues with other USB devices? 
>>If you are having problems with USB ports, read this topic.<<

[Bernhard]

Thanks Mike, I saw that article before and as far as I remember the PS USB connector only has 4 wires but I will check again tonight. I have not had any issues with any other USB devices so far on any of the ports. My suspicion remains with USB connectvity of the PSU/USB cable iteself as it seems to work everytime I open up he case and move the connector to another USB header.Its just irritating, seeing that the PSU is otherwise fine and I really didn't feel like taking it out for a test and exchange. The error it displays in Win 7, is that the same error it displays when the "Open Connection" wire is connected ?

[Bernhard]

Did the quick check on the USB connector from the PSU. It actually only has 3 cables, i.e. gnd and the the USB+ and -. Thats it. The plug itself has the 5th pin as a blank, so you can't really connect it the wrong way round.
In addition the package includes a rear expansion plate to fit into one of the spare slots, for a MB that may not have USB headers. This has a normal USB connector on the one end, to be plugged into a spare USB port at the back. The other end has a male connector that then plugs onto the cable USB header connector on the PSU side. Funny thing is that this rear extender connector has 4 cables connected to it. Wonder why?