from your description it would appear you have a grounding problem
with your pc, or a defective hard drive.  the electric flash as you
plug it in (before the system can recognize/initialize it) should not
be a control signal per se, but rather is likely extraneous current
that improper grounding is letting reach circuitry it shouldn't.


On Apr 6, 2005 6:23 AM, Philippe Landau <[EMAIL PROTECTED]> wrote:
> when i plug in my new Data-Tec D350U USB 2 external harddisk,
> i see a small electric flash which can cause
> my PC to shutdown instantly.
> i know USB is powered, carrying a small voltage,
> so the flash is not unexpected.
> also as it is used to send control signals
> i can understand that it powers down my PC.
> but it is risky for my data,
> so i would like to know if others saw that happen too.
> 
> kind regards     philippe
> 
> 
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