Question about Biostar U8668 (U8668DV7) Motherboard
I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further
USB flash drives can fail for no apparent reason.
Sandisk Cruzers are especially bad for this.
USB hard drives should be treated with extreme care.
This is a real hard drive ! and knocks and bumps can quite literally kill them.
It is possible to remove drives from the enclosures in most cases and connect directly inside a PC to fully check it.
Note that if you hear a drive clicking or pinging this could be the worst thing you would hear.
Known as "The Click Of Death"
Posted on Sep 10, 2009
Try connecting it to some other computer, and/or to some other USB-port on your computer.
If the second computer does not recognize it, then either the USB-to-disk-drive interface is the problem, or the disk-drive inside the case is the problem.
If the warranty has expired, then open the case, and remove the disk-drive, and try connecting it directly to your computer, via a generic USB-to-disk-drive adapter, e.g.,
to see if the disk-drive is problematic.
Posted on Sep 10, 2009
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Posted on Jan 02, 2017
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External hard drives not only provide additional storage space on a computer system but also allow data to be conveniently transported from one computer to another.
These drives typically plug right in to a port on the computer and function without any additional setup; however, if you are running into trouble where your external hard drive is not being detected, you must troubleshoot the situation to determine why the drive appears to be missing.
Check the USB connection running from the hard drive to your computer.
If the USB cable is not seated securely in the port, the computer will not detect the external drive.
Disconnect the USB cable from the computer and plug it into a different USB port. Occasionally, a USB port will fail to function with some hardware and changing the USB connection may correct this issue.
Switch from a USB to a Firewire cable connection, if possible.
The USB port on the hard drive may have died; if so, changing to a Firewire connection will resolve this issue.
Install the driver for the external device from the installation disc provided with the product. Older computer systems may require you to manually install this driver.
After inserting the installation CD, follow the prompts from the installation wizard to install the driver on your computer.
Restart the computer.
If you connected the external drive while the computer is powered down, it may not recognize the device when you turn on the computer.
After restarting the computer, connect the external drive to the system.
The drive should now be detected by your operating system.
Connect the external hard drive to a power source and then plug it into your PC computer using a USB or Firewire cable.
Log on to your PC computer using an account with administrative privileges.
Open the Start menu and click on the "Control Panel" icon.
Open the "Administrative Tools" folder and then double-click on the "Computer Management" icon.
Select "Disk Management" from the list of options on left side of the window.
Right-click on the drive you want your computer to recognize and select "Change Drive Letter and Paths."
Select a drive letter for the external hard drive to be recognized as and click "OK."
The drive will now appear in My Computer.
Hope this helps.
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A USB hard drive is a portable external storage device that works just like a conventional hard drive.
The device is simply plugged into a USB port on your computer as you would connect a flash drive.
Unlike a flash drive, however, a USB hard drive can store a much larger amount of data.
If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.
Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely.
Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7).
The USB device should be listed as "removable disk" once it is plugged into the computer.
If it is not listed among the available drives on your computer, proceed to the next step.
Ensure that the data cable is working properly.
Try another USB cable if you have one available.
Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive.
Reboot the computer if the USB hard drive is still not recognized.
Plug the USB cable into another USB port and check to see if the device is detected.
If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port.
If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem.
Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager."
For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter."
Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives."
If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears.
The external hard drive may have been detected but the device is not working properly.
If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced.
Hope this helps
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