Tip & How-To about Western Digital Passport 320GB External USB 2.0 Hard Drive
If you plug your Western Digital Passport External USB 2.0 hard drive to a USB socket in your computer system, & the hard drive's light is on but there is no spinning sound, then you might be experiencing a defective interface circuitry.
These devices have a
USB-to-SATA interface inside their enclosure. If you can find another
enclosure with a similar interface (or buy a new enclosure),
disassemble your hard disk enclosure, get the hard drive out &
attach it to the interface in the other enclosure & see if it works.
Another
possibility is that the interface could be fine, but the hard drive
itself died. To test this possibility, try attaching the hard drive
itself (after getting it out of its enclosure) directly to a PC. Since the hard drive is a SATA drive, you will be
able to do this easily.
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