2. iPad no longer charges from USB ports. Other devices, like my Garmin GPS watch does. The iPad still syncs up with iTunes, but refuses to charge.
Motherboards that were released before or around the time that 1+ amp USB devices were the norm sometimes require an additional driver/filter that allows the USB port to go out of spec and provide the necessary amperage. This special driver is usually provided by the motherboard manufacturer.
All iPad models require 1+ amps to charge.