External HD not recognizing USB ports as being Hi-speed ports
All USB ports on my PC have been proven to be hi-speed ports via use with other USB mass storage devices. No matter which port I plug my SimpleTech Signature Mini 160GB External USB 2.0 Hard Drive into, I continually get pop-up notice indicating that it is a Hi-Speed USB device attached to non-hi-speed hub and that it will function at reduced speed when plugged into a non-hi-speed port, so I need to disconnect from current port and then connect to another port. (1) Why am I getting pop-up? (2) Is device really functioning at reduced speed? (3) Is there a solution?
Re: External HD not recognizing USB ports as being...
I have the same issue. I have 4 Simpletech Signature 250GB drives. They all worked fine at first. After about six months two of them started connecting at USB 1 speeds. It occurs on 4 different computers!!! The post about it being the computer assumes is wrong. How can it work fine for six months and then suddenly change. Also it occurs on different computers. I have submitted a tech support request with simpletech and will post the results.
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does the usb cable you are using have 2 usb plugs so you can plug it into 2 usb ports at the same time.
If not, you could try using one, sometimes my external HD will not work on some pc's if i just plug it into 1 port
Not exactly a solution but I have had the same problem with one of these Simple Tech Signature Mini 320's for a while. Real finicky. Will only be recognized on direct connected to MB USB ports and even then with Win 7 or XP I get the "This USB device can perform faster if you connect it to a Hi-Speed USB 2.0 port." no matter what ports I connect it to. While having this issue on this "main" computer I have previously connected it to some other computer (don't remember which, now) and it connected at 2.0 speed. What's going on??
Try opening up the device manager and unistall everything in the Universal Serial Bus Controllers. Then reboot and let windows reinstall the USB controllers. Windows should now be able to recognize properly USB2 devices.
Normally the steps would be:
1. In your PC, in the System Tray, click on the "Safely Remove Hardware" and then on the "Safely Remove USB Mass Storage Device-Drive(?);
2. Unplug USB cable;
3. Power down external device.
Hope this be of some help/idea. Good luck and kind regards.
This is a common problem with external storage. Please refer to http://www.fixya.com/support/t191153-device_recognized
Below is a copy of my response to a similar post.
Based on your post/description:
1. Your PC does not recognize the external hard drive via its USB connection - try on a different computer - if it is still a no go, then it's not a PC problem;
2. Try replacing the cable - again if a no go, so it's not an interface/cable problem;
3. That leaves you only with the My Book itself as the possible at fault.
An external hardrive would consist of 2 main parts, the electronic board and the hard disk itself. The board seldom (if ever) fails. Its function is to provide conversion/interface from the SATA/IDE connectors of the HD to the out USB/Firewire. The HD more often than not fails. Most external storage uses a standard HD inside the enclosure.
Your possible options aside from running manufacturer's diagnostic and/or third party recovery software are:
a. Claim warranty/replacement;
b. Replace the HD only;
c. Physically remove the HD and connect it direct inside a desktop either as IDE or SATA;
d. Seek services of professional data recovery firms (if data/files are mission critical);
Hope this be of some help/idea. Post back should you need further information.
Good luck and kind regards.