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External hard drives contain a power supply to operate a standard hard drive in a case. It usually connects to a USB port. Usb drives get their power from the wire that connects it to the USB port A regular internal hard drive gets it's power from the computer's power supply wiring. The data cable is either a flat ribbon cable or a 6 pin cable that connects directly to the mother board.
unless you can access your 500gb portable hard drive you wont be able to recover any data you have on it is the connector on the hard drive or the motherboard if you have more than one usb out put you might be able to connect your portable hard drive if you have any spare sockets on your motherboard or you could get usb 2 or 3 card they are cheap and easy to install you can buy these on Ebay very cheap
if you need more help with this or if i have misunderstood the problem post a reply hope this helps
this type hard disk needs ATA-66; 40 core cable for data transmission, and four core supply cable [+5V - 0V - 0V - 12V] supply cable. The data cable only has to be bought, because, supply pin will be with the power supply unit. You can buy this cable from most of the electronic spare part shops, or computer spare part shops at your town. The picture of the cable is given here.
Please note; This will be extremely hard. most of those products have no pictures and you are not sure exactly what you are getting, luckily they are pretty cheap so i would recommend getting a couple that sound right.
Hi, most external hard drives come with a seperate power supply, the exception is "pocket" externals which some have the ability to run from the USB socket alone. They have laptop drives in them. Many of these drives come with a USB cable that occupies 2 USB sockets in order to obtain enough ppower to run. (Or a second cable that occupies a second USB with a power plug on the end for a drive. They will often not run on one socket. If your device came with a double USB lead then use this. If it came with an external power supply then use it as well as the USB lead. Try the same on another PC just to confirm the USB sockets on the one you currently use are ok or try a different device to prove correct function.
If all this fails to get your drive running then the drive itself is probably faulty. Is it under guarantee? If so then you can get a replacement. This will lose your data though as the guarantee does not cover stored information. In this situation, is the data more important than the drive? If very important, buy a replacement empty external drive case, remove your drive from the original case (voiding the warranty) and fit the drive in the new case and try again. If it now works you have a dead interface board in the old case, if still not working you have a faulty hard drive. Does the drive click continouously? If it spins then you could try data recovery software or run "HDD regenerator 1.71" on it to fix potentially bad sectors and try again. This is a time consuming process but if the data you need is saved then it is worth it!
Try plugging the internal drive in directly to a SATA connector, no USB. If the drive PCB is the original, and the drive is spinning, and still does not identify or accessible, then likely cause is not the PCB. If you want the data from this, consult a data recovery service that has cleanroom facilities.
They do not generally distribute spare parts for these cases. You can however purchase new complete enclosures without a drive for a small price and transfer your existing drive into the new enclosure. As the actual hard drive can generally survive several G's worth of drop force even when running, it's most likely the harddrive is ok. Once in the new enclosure test the drive out, if it works, you're done. If it doesn't the drive itself is the problem, reply here by adding a comment with your country and city and I will pass along a recommendation for a professional facility.