According to the Makers Web Site this supposedly has a Power Supply so check that out and make sure that It's actually producing power.
Look at the USB Lead and if it shows any signs of damage replace it.
If neither of the above works you'll need to have a look at the FAQ's on the makers Web Site as listed here
[i]How do I format my Grab'n'GO hard disk?
My CHD3U does not become recognized on my computer. Is the device...[/i]
My harddisk enclosure is recognized, but I don't see a new drivel...
When I turn on the CHD3U, it is not recognized on my computer. Th...
Which IDE standards are supported by my external enclosure?
How to partition and format a hard disk, with Disk management or ...
How do I set up the backup software of the CHD3U Grab?n?Go?
Is it possible to use the OTG function of the media player with a...
What chipset is used by the CHD3U housing?
The unit fails to detect any unit after putting a hard disk in th...
How can I fit a hard disk in a CHD3U / CHD3FWU housing?
Why does the message ?Hardware may not be removed safely (CHD3U/2...
Now as this holds a standard PATA Drive you can pull it out of the enclosure and fit it to another Enclosure or if your BIOS Supports a drive of 200 GIG you can use it as a Slave inside a Desktop Computer. Fitting to another USB Enclosure would be the best option but if that isn't possible and your M'Boards BIOS supports IDE Drives to 200 GIG you can fit it as a Slave though remember to change the Jumper to either Slave or Cable Select if you do not have the Slave option on your HDD.
If the drive is still blank you have been removing this unit from the USB Ports without using the Safely Remove Option in Windows and the Partition Information has been damaged. But if the drive doesn't appear in Either BIOS or Device Manager, Drive Management the Drive is damaged and needs replacing. If you absolutely need to recover your Data it's a job for a Data Recovery House and it's going to cost you money and quite a lot depending on what has to be done to recover the Data.
At this point if the HDD is working but Blank you'll need access to some Data Recovery Software. Following is a list of the more common Data Recovery Software there are 2 types the first rebuilds the Partition Information and is the more expensive. The second Lot recovers your Data off the HDD and depending on which one you use you may need to format the Drive so you can recover the Data but [b]Read The Destructions [/b] that come with the Software.
http://tinyurl.com/273ay5
http://tinyurl.com/rmvrv
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http://tinyurl.com/yyk8cm
http://tinyurl.com/382vm
http://tinyurl.com/ynwnel
http://tinyurl.com/nc4kx
http://tinyurl.com/2wox7l
http://tinyurl.com/374d8b
http://tinyurl.com/djw6u
http://tinyurl.com/f73se
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http://tinyurl.com/afu2j
While the last 2 are from the same company they are very different products. Win Hex should only be considered foe use by someone who knows Hex Inside Out while Davory is a great cheap General Purpose Application.
Personally I prefer the On Track Option but it's anything but cheap. However because I use this type of software a lot it's paid for itself many times over by now, for a cheaper option Spin Rite from Gibson Research or Stella have both very good reputations by other TR members.
Col