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  • Keep your PC's internals and externals in tiptop shape by following the sage advice of Contributing Editor Kirk Steers.
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Hardware Tips: Salvage the Files You Lost From Your Hard Drive

Kirk Steers

Power-Hungry Hubs

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.

Send your tips and questions to kirk_steers@pcworld.com. We pay $50 for published items. Kirk Steers is a PC World contributing editor.

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