connecting problem

July 1, 2011 at 08:35:31
Specs: Windows XP
if i connect more then one pen drives to my system it's not recognising why

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July 1, 2011 at 08:55:11
Troubleshooting USB device problems including for flash drives, external drives, memory cards.
See Response 1:

Check that out first.

Rarely, not all the ports on the back of a desktop case may be able to supply 500ma each.

If you have a desktop computer, Note that I answered a Topic on this site where a guy had an external drive, which does require the full 500ma, connected to a port on the back of a desktop case - it would not work properly when a webcam was in the port next to it, but it worked fine when the webcam was unplugged. Ports on the back of a desktop case often have two ports connected to the same USB controller module that are ports one above the other - you could try connecting the cable to one of those and leaving the other un-used.

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