Western Digital 500gig External Harddrive. Power up troubles.
The hard drive portion of this product stopped powering up. If i plug in the power it will cycle up and then after about 7 - 10 seconds it shuts itself back off. If I connect it through the USB cable to my laptop it will read it as being present but no power to the hard drive keeps me from opening it. Any help would be greatly appreciated.
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first of all , you are looking at the wrong voltages. The important voltage is the DC OUTPUT, which is the voltage the external harddrives use AND the polarity of the plug attached to the harddrive end of the cable.
if both the harddrives have say 12v dc output and both have the insignia of the center conductor being + (posative) then you can interchange them. and you CAN run a 9volt unit with 12volt DC power, but not the other way around.
Look at your power adaptors again for the OUTPUT and polarity.
should be a half-circle with lines depicting the polarity(+,-) of the center and sheild connections to the hard drives printed on both the harddrives and the power adaptors . This can also be tested with a dc volt meter while the adaptors are plugged into the wall.
DO NOT try to test the AC end while plugged in!!
This is a hard one, as 7 is so new. But it sounds like the very next thing to do is to plug the drive into another computer to see if the drive is working properly.
If it works well, make sure that your drive is not trying to grab a drive letter that is already being used by another device. Do a search on the MS website for known issues and instructions on how to check for drive letter management issues.
Couple things. What model WD drive do you have? Plugging the laptop adapter into the drive chassis may have fried the chassis. You can buy a new chassis and put your drive into it, or you can buy a new power supply in case the one you have has gone bad and you did not realize it. Not likely though.
The power requirements are very specific and the laptop power supply may have been to much for the WD drive.
You will need to plug the harddrive into a windows based pc todo a format or run BOOTCAMp on your Mac to gain a windows portion. However the easiest way is using a low lever formating utility form western digital : http://support.wdc.com/product/download.asp?lang=en
Take it our of the external encasing and plug it in directly to your motherboard. This has worked for me in the past. I just had my second wd external harddrive crash so now I will do the same process all over again.
it sounds like hard drive data may be corrupted. This could be due to a number of things. A power failure, hardware failure etc.. If the drive will not even let you access it you'll probably have to just format it im afraid.