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Cannot detect ext hard disk samsung on acer windows 7

Last response: in Windows 7
February 13, 2013 2:49:17 PM

cannot detect my ext hard disk samsung model F2 on my laptop with Acer travelmate on windows 7 have you got any idea whats the problem.
a b $ Windows 7
a b Ô Samsung
February 13, 2013 3:03:34 PM

How are you connecting it.
If just pluging the encluser into a USB 2 port, yor problem is probably insuffient power.
USB2 provides +5 V that is limited to 0.5 Amps (2.5Watts). The start up power and power required during read/writes for may external HDDs exceed USB2 specs.

You need to:
1) use a Powered enclosure or
2) plug it into a Powered USB2 Hub then the hub into computer. or
3) obtain a 2 "headed" usb cable. This is a cable that plugs into the external HDD and then into two seperate USB2 ports (sometimes this does not work).
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