Question about PC Desktops
USB hubs operate at 5V DC power, as do a lot of things on your motherboard do. They are able to transmit DC power to a device which makes it possible for items to be plugged straight into a USB port and not have an external power supply.It sounds as though the main connection between the USB points and the power supply has become broken, as a lot of USB points are connected in series to save space. Also, one point on the USB line could have possibly become grounded. A fewer simple measurements with an OHM reader may help in this situation.
Posted on Mar 25, 2008
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