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Date:      Tue, 23 Mar 2004 10:44:11 -0600
From:      Nathan Kinkade <nkinkade@ub.edu.bz>
To:        Steve Ireland <stevei@black-star.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: disconnecting keyboard: big trouble !?!
Message-ID:  <20040323164411.GE12464@nkinkade.bmp.ub>
In-Reply-To: <038c01c4109d$858a4dc0$1a01a8c0@blackstar.net>
References:  <405FCE37.5060104@users.sourceforge.net> <038c01c4109d$858a4dc0$1a01a8c0@blackstar.net>

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On Tue, Mar 23, 2004 at 01:10:13AM -0500, Steve Ireland wrote:
<snip>
> This is a PS/2 thing, not an operating system thing. You really can
> fry your motherboard plugging and unplugging PS/2 devices while the
> system is powered up.
>=20
> Regards,
>=20
> Steve

This is off-topic to the list, but I've been wondering about this issue
for some time; not whether a PS/2 device stops working when hotplugged,
but whether it may damage your mainboard.  I spent a while one day
searching on the web for definitive documentation stating that
unquestionably you run the risk of destroying your entire mainboard
and/or the PS/2 if you hotplug.  I couldn't find any.  As far as I know
the PS/2 devices are supplied power through the port, so I guess it
seems logical that hotplugging could be a risk, but other than
conjecture and various anecdotal evidence, I have come up blank on
the risks.

Can anyone on the list point me to a manufacturers site or documentation
that unequivocally states in clear terms the real dangers of hotplugging
a PS/2 device?  Like some of the other people who have replied, in the
past I have hot-plugged many a PS/2 device to no detriment.  However, I
now only do it if there is no other practical alternative just to be on
the safe side.

Thanks,
Nathan
--=20
gpg --keyserver pgp.mit.edu --recv-keys D8527E49

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