Larry,
 Two things come to mind, if your unit uses a removable cable it may be
defective,or perhaps your power supply has lost power factor and cannot
supply 
enough current to operate a device powered from the USB buss.
If replacement is needed a search for the OEM part number should return
suitable
Replacements.
HTH,
Hal Seabolt


-----Original Message-----
From: Personal Computer Hardware discussion List
[mailto:[log in to unmask]] On Behalf Of Larry Scroggs
Sent: Thursday, March 22, 2007 8:35 PM
To: [log in to unmask]
Subject: [PCBUILD] External USB HD not being recognized

I submitted the message below over a week ago and never had a reply. Can
anyone help me out? Thanks.

I am using a system I built about a year and a half ago and up until the
last two weeks I have had no problems with it.
System specs are:
Windows XP Professional Service Pack 2 (build 2600) with all updates,
2.40 gigahertz AMD Athlon 64,
A: drive 3.5" format removable media [Floppy drive],
C: drive Maxtor 6B300S0 [SATA Hard drive] (300.08 GB) -- drive 0,
D: drive PLEXTOR DVDR PX-716AL [CD-ROM drive],
E: drive PLEXTOR DVDR PX-740A [CD-ROM drive],
K: drive WDC WD25 00JB-00GVA0 USB Device [Hard drive] (250.06 GB) -- drive 2
HP psc 2175xi USB Device [Inkjet scanner/printer] -- drive 1,
Motherboard MICRO-STAR INTERNATIONAL CO., LTD MS-7100 1.0
2GB RAM

The USB HD is used for backing up my internal HD. I have used it weekly
since building the machine. Lately it no longer shows up in "My Computer".
If I look in "Device Manager" the USB WD HD is recognized under "Disk
Drives" as USB Device - drive "K" along with the Maxtor SATA HD as drive "C"
and the HP psc 2175xi as USB Device without a drive letter designation.
"Device Manager" show the USB HD as working properly. I have disabled and
reenabled it. I have tried uninstalling it and having Windows XP redetect
it, all to no avail. I have tried the drive on several different USB ports
on my machine with no joy. 

I will appreciate any help you can offer. Thanks.

Larry

Larry Scroggs
[log in to unmask]
El Paso, Texas, USA

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