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#1
April 30th 08, 10:39 PM
posted to microsoft.public.windowsxp.hardware
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USB Power lost.
Hello, I have a CNC control running XP Embedded. It communicates to the host
computer via USB to serial adapter. The communications work until the machine runs a large program. After that the software give an error. "unable to open port" I believe something is killing power to the USB. After rebooting the system everything works fine. The system started doing this after software & bios update. I would appreciate any ideas as to what the problem may be. 
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#2
May 1st 08, 07:49 AM
posted to microsoft.public.windowsxp.hardware
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USB Power lost.
"CNC" wrote in message ... Hello, I have a CNC control running XP Embedded. It communicates to the host computer via USB to serial adapter. The communications work until the machine runs a large program. After that the software give an error. "unable to open port" I believe something is killing power to the USB. After rebooting the system everything works fine. The system started doing this after software & bios update. I would appreciate any ideas as to what the problem may be. The BIOS or software update perchance? Go back to the original. Does the fault dissappear? If so, the update is bad.
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