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Article View: comp.sys.mac.hardware.misc
Article #48

Re: HELP - G4 Tower and Apple Pro Keyboard Problem

#48
From: Nigel Hunt
Date: Tue, 06 Mar 2001 23:58
47 lines
2890 bytes
in article 3AA4FEC0.E15A50E2@nl.fortisbank.com, Hans van Dongen at
Dongen.h.v@nl.fortisbank.com wrote on 3/7/01 2:14 AM:

> 
> 
> 
>> Andrew wrote :
>> <snip>
>>> Are you sure its the keyboard ?
> <snip>
>>> Nigel Hunt wrote:
> 
>>>> I have just recently decided to change my old iMac style keyboard for the
>>>> new Apple Pro Keyboard. Ever since then when I go to shutdown the computer,
>>>> it appears to shutdown and then it restarts again.
> 
> <Snip>
>> Yeah the old keyboard works fine on the system and I doubt it would be a
>> motherboard fault if it works with the old keyboard.
>> 
>> I do have a Imation Super Disk Drive installed in the USB port of the
>> keyboard. I am just wondering if this could be it?
>> 
>> I will try and verify it tonight.
> 
> Hi,
> 
> From what I understand, USB peripherals, especially if they have an
> additional power supply, can release some voltage over the USB-port on
> powering down the computer. This residual charge is then interpreted by
> the computer to be the power-on signal, and the machine does so
> accordingly. This is covered in the FAQ section of the apple
> TIL.(http://til.info.apple.com/)
> 
> Hope this helps
> 
> Hans
CORRECT!!!

It appears that the Imation SuperDisk is indeed doing this. When I
disconnect the USB cable the computer shuts down fine. With it installed it
restarts the computer. What a bummer!!!

I tried looking for it in the FAQ section but never found it. Obviously I
never read it as deeply as you did.

Thanks heaps..........
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Subject: Re: HELP - G4 Tower and Apple Pro Keyboard Problem
From: Nigel Hunt <nahaz@idx.com.au>
Newsgroups: comp.sys.mac.hardware.misc,aus.computers.mac
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