20 Most Recent Western Digital 250GB MyBook External USB 2.0 250 GB Hard Drive - Page 4 Questions & Answers

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!!
Regards

Yes. The data is recoverable. http://techrxgb.com for a free estimate. Typically, there are a lot of issues with passport drives due to heat.

Did you try switching the USB port that you plug your unit into? This could help. You may need to reinstall the WD provided software. I believe it is available from their website if you don't have the CD anymore.

In XP Start > Control Panel > Administrative tools > Computer manager then on the left click disk managment, you will see your 250gb drive as drive0 most likly with partition C and beside it you should see unallocated space, you can right click this unallocated space and format it, then right click again and click make partition active.

Check the model number of the hard drive as per invoice or packing box of the drive. Visit the link given below.

http://support.wdc.com/product/download.asp?level1=1&lang=en

Punch the model number in the model number box and you press enter key, you will get an option to download its manual.

is this a transformer power supply? if so get a volt meter and check output a power supply connector to see if it matches what is on the power supply as output voltage. good luck

Mine needed a new power cord. Then it worked fine.

try the device on another PC. if it works then you have a issue with you PC,

ffrank54

The problem is that the drive letter that the drive is trying to use is assigned to another device. The link below will help you assign another drive letter to the drive.

http://www.fixya.com/support/r4183994-change_drive_letter_in_windows_xp

Let me know if you have any more problems or questions

Issken

Hello Charles,

Thanks for using FixYa.

Sadly, the problem that you are having is because of a damaged circuit board on the Hard drive. If you missed to safely eject the drive from your mac, this causes the drive cache to get corrupted due to the sudden loss of power thus physically damaging the drive.

You can also try to mount the drive to a PC and try to format the drive from there as a last resort but there is a slim chance that this would even work. If the format was successfully you're lucky enough and should be able to use it on your Mac again.

I hope this helps. Thanks and good day.
HotRatchet

They're referring to the USB port built into the computer. Apparently your PC is older and has USB 1.1 ports? You can buy USB expansion cards, assuming it's a desktop not a laptop.

Dropping a hard drive is like a bomb going off for the drive. It is likely NG.You are not likely to retrieve data as there is probably no data to recover. The disc is probably scratched bad inside.

Under Windows No there isnt a fix for this

Dear Sir, I think its case issue, so you don't need to replace the HDD, only for the casing.

try downloading device drivers from wd. has it been droped?

Do you see the drive light on and can you hear the fan on your disk? If yes then try using a different usb port and a different usb cable. Check to see if there are any other drives with the same drive letter.

You can find this by right mouse clicking my computer, select manage, select disk drive manager see if the drive is recognized and if it trying to use the same letter as another. If so change the letter and it will be seen.

IF POWER ADAPTER IS YOUR SUPPLY IT MAY BE BAD. IF DIRECT TO 115V THEN DEFECTIVE.

right click on my computer , click on manage ,click on disk management , you should see the drive , asign a letter for it and it should show up on explorer , it may need formating or partitioning , follow instructions on screen , best of luck .

some WD drives need a firmware update from WD goto there website and see firmware update

My Book Essentials

12 Volts
3.0 Amps
36 Watts

Sometimes WD will even send you a replacement free of charge, if you give them a call.