Windows XP is operating system, All device is ok, but in a red alert a message appearing in task bar area some times.
A power is extended in USB port hub don't know how this message appear and for why?
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If you are using a USB hub you better be careful with the plugging too many USB devices to the USB hub. Because each device needs power to work and if you exceed the maximum power support from the USB port some of your ports in the hub will disable.
In simple way one or more devices may not work properly which you have attached to the USB hub. The solution is giving external power to the USB hub. In most USB hubs you can find out the DC in jack and using a appropriate power source you can overcome this problem
even though you are giving additional power to USB hub sometimes your USB root hub can exceed the power limit. Due to that reason your root hub can be terminated. Its a common incident when you are using USB root hub.
