Question about Acer Aspire E380-UD420A (ASE380-UD420A) PC Desktop
The most likely problem is your USB bus is underpowered for supporting your external hard disk drive along with other USB devices.
First, this is actually a good thing in a way. The reason is, it is actually telling you right up front that your USB bus is underpowered for this device. That's a huge improvement over issues caused by underpowered USB buses in the previous model computers. In those, we were left to having to figure out what the problem was when a USB device inexplicably stopped or didn't work.
What is happening is, your new hard disk drive(s) (HDD) are trying to run off of power supplied by your computer's USB "bus" (circuitry). This is OK for USB devices needing low power. But in the case of external hard disks, it's "iffy" whether there'll be enough power on the USB bus to support even one of them, much less two or more. Particularly on laptop computers.
Have no fear. This problem is easily remedied. :)
You need only attach an A/C adapter to each of your external hard disk drives and you should be OK.
If that is not an option, connect a **powered** USB hub to your laptop and plug the external HDDs into the hub instead.
By "powered" I mean a USB hub that comes w/ an A/C adapter. In either case, using a powered USB hub or attaching an A/C adapter to your hard disk drives will remove the external hard disks' power load from your laptop's USB bus and provide sufficient power for the HDDs to run.
You can find USB hubs at Newegg.com and lots of other online high tech stores. I like Newegg because their prices are competitive, their customer service is excellent and there're customer reviews of most of their products there as well.
If you have any more questions, comments, observations - anything at all, just let us know. We're here to help.
Otherwise, PLEASE, take a moment to rate the solution that best addresses your problem. If the solution provides a "fix" for your problem, then a **FIXYA** rating would be very much appreciated. :)
Posted on Apr 16, 2008
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Posted on Jan 02, 2017
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