Re: I/O Device Error.............HELP....

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You can determine the source of the errors by using Event Viewer.
Click Start, Run (Type) Eventvwr.Msc [Enter]
Errors will be shown as Red Icons in descending chronological order.
Double-Clicking an entry will bring up a details box with a numerical
Event ID # and a brief description.

If it happens on every type of transfer, then you need to look to the
primary Mass Storage controller as the source. I would check the
IDE controller (If that's what is used) and see what operating mode
your hard drive is running under. It should be a UDMA mode 3 or
greater. If it's set to PIO mode, then XP has done a mode roll back.
This happens when XP logs errors against a controller and in a effort
to stop the errors, lowers the operating mode back to a slower
speed.

<scootersite@xxxxxxxxxxxxxxxxx> wrote in message
news:ej4nl1pr7hj05q3l644hse7l0v5o8dq14u@xxxxxxxxxx
> I'm not sure how you tell which device the error is being logged to,
> but I assume it's against my main drive since I get this error when
> trying to copy files from my C drive to 3 other computers as well as
> my external drive. My USB port is a standard 1 speed, but again I
> don't think that's the problem because I get this error no matter
> where I'm copying to.
>
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> On Sun, 23 Oct 2005 09:14:36 -0400, "R. McCarty"
> <PcEngWork-NoSpam_@xxxxxxxxxxxxxx> wrote:
>
>>First - is the I/O error being logged against the source drive or the
>>destination drive ? Second is the USB a High (1-1.1) or Full Speed
>>port (2.0) ?
>>External USB drives internally use a traditional PATA or IDE drive
>>and have a chip that converts data to a Serial form. This is why a
>>USB 2.0 complaint drive will only transfer data at around 26 Meg
>>a second. (Forget the theoretical maximum of 480 Megabytes)
>>Externals may have this problem if their policy is set to "Optimize
>>for Performance" - that enables their Write behind caches. I would
>>check Device Manager, Disk Drives, Advanced (TAB) and see
>>how your external drive polices are set. You can also benchmark
>>your drives ( Access Time, Burst & Sustained) with a small program
>>called DiskSpeed32:
>>http://www.geocities.com/vgrinenko/DiskSpeed32/
>>
>><scootersite@xxxxxxxxxxxxxxxxx> wrote in message
>>news:vf1nl1tccucvl2cvocpgr6s1mi03r1jrso@xxxxxxxxxx
>>> When I try to copy files to another computer or to a back up drive
>>> attached through a USB port I keep getting the error message "The
>>> request could not be performed because of an I/O Device error". I've
>>> tried splitting up the files, rarring them, renaming them and
>>> everything I could think of but nothing works. When I split the files
>>> into smaller segments there's always a one or two of the smaller files
>>> that will still cause this error so I can't copy the complete files.
>>> I've done the disk-check and that didn't help. It mostly happens with
>>> large files (over 100 MBS) but occasionally even smaller files will
>>> not copy. This is a real problem as I have allot of large video files
>>> that I can't back up. I run XPHome and this has just started happening
>>> over the last month.
>>> Any other suggestions....please?
>>
>


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