Touching USB causes PC reset??

[EnigmaPaul]

Hey guys,

Here is an odd one. I have a PC that is acting very weird. When you
attempt to plug in the USB cable from an iPod, even just TOUCHING the
usb plug to the recepticle... it causes the PC to reset entirely.

Any ideas?

thanks.

 

[Michael W. Ryder]

Hey guys,

Here is an odd one. I have a PC that is acting very weird. When you
attempt to plug in the USB cable from an iPod, even just TOUCHING the
usb plug to the recepticle... it causes the PC to reset entirely.

Any ideas?

thanks.

There have been posts in other groups in the past where the chipset
actually burned because of a problem with the USB ports on the
motherboard. Plugging in a device into one of the ports either killed
just the USB ports or the motherboard. The only solution was to use an
add-on USB card. The problem seemed to be that there wasn't enough
isolation between the ports and the motherboard causing the problems.

 

[Loren Pechtel]

Hey guys,

Here is an odd one. I have a PC that is acting very weird. When you
attempt to plug in the USB cable from an iPod, even just TOUCHING the
usb plug to the recepticle... it causes the PC to reset entirely.

Static + probably a grounding problem.

 

[Larry Samuels]

Ground fault on the USB

--
Larry Samuels Associate Expert
MS-MVP (2001-2005)
Unofficial FAQ for Windows Server 2003 at
http://pelos.us/SERVER.htm
Expert Zone-

 

[cquirke (MVP Windows shell/user)]

(e-mail address removed) wrote:

Prolly an electrical short that causes the ATX PSU to switch off as a
means of protecting the system.

There have been posts in other groups in the past where the chipset
actually burned because of a problem with the USB ports on the
motherboard. Plugging in a device into one of the ports either killed
just the USB ports or the motherboard. The only solution was to use an
add-on USB card. The problem seemed to be that there wasn't enough
isolation between the ports and the motherboard causing the problems.

A more likely cause is a front panel USB that has been mis-connected
to the motherboard. This is usually because the USB's internal leads
are "loose", not formed into a plug as such, so it's really easy to
plug them in incorrectly. Here's how they usually should go...

a b c d e
f g h i j .

.. = no pin (to inticate orientation)
a = Red
b = White
c = Green
d = Black

e = sheild (usually not connected)

f =Ref
g = White
h = Green
i = Black

Just remember the Italian flag colors Red, White and Green for the
first three (a, b, c) and then Black for the last (d). Pins f, g, h
and i are the same as a, b, c and d but for the other socket (don'tmix
the two sockets' leads up!)

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[EnigmaPaul]

Thanks guys....

Does everyone agree that it is definately a hardware problem?
Sometimes told me maybe a virus, but that doesn't make any sense to me.

So, what do you think is a viable solution.... an ISA USB card perhaps?

 

[Larry Samuels]

A PCI USB card will work, or you can try to trace down the short/ground
fault.

--
Larry Samuels Associate Expert
MS-MVP (2001-2005)
Unofficial FAQ for Windows Server 2003 at
http://pelos.us/SERVER.htm
Expert Zone-

 

[Loren Pechtel]

Thanks guys....

Does everyone agree that it is definately a hardware problem?
Sometimes told me maybe a virus, but that doesn't make any sense to me.

So, what do you think is a viable solution.... an ISA USB card perhaps?

If it's a misconnect you could plug them in right.

Otherwise, a PCI USB card. ISA is dead!

 

[Rod Carty]

Hey guys,

Here is an odd one. I have a PC that is acting very weird. When you
attempt to plug in the USB cable from an iPod, even just TOUCHING the
usb plug to the recepticle... it causes the PC to reset entirely.

Any ideas?

thanks.

I've seen this when using a cheap USB cable and plugging into USB ports
on the front of a computer. Plugging a good grounded and shielded cable
on the front is ok and so is plugging that same cheap cable into a port
on the back of the computer. It's a static issue I think.

 

[Richard Urban]

Try another cable. Try your present cable in another computer.

--
Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!