Tuesday, April 12, 2005

Determine USB Power Load

Determine USB Power Load: "Do your PC's USB ports supply enough electricity to power all the devices you have attached to them? Plugging too much gear into a bus-powered USB hub (one with no external power adapter) can overwhelm a USB port by demanding more than the 500 mA it can supply.

Check the power demands on any USB port in Windows XP by
right-clicking My Computer and choosing Properties,
Hardware,
Device Manager.
Double-click Universal Serial Bus controllers,
double-click the USB Root Hub entry,
choose the Power tab, and add up the amounts in the 'Power Required' column."

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