ATX vs AT (was: [PLUG] Shutdown won't power down)

[Anthony Schlemmer]

I've got a system with an Asus SP97V mobo and it has both AT and ATX 
power supply connectors on the board. It does have a AT style keyboard 
connector but it did come with a PS/2 style connector for converting 
one of the onboard serial ports to a PS/2 connector. 

A little strange to say the least and I've always used an AT power 
supply on the thing even when replacing the old power supply with a new 
one. I was surprised to find I could still find new AT power supplies. 
I don't know how I could use an ATX power supply on the thing unless 
those power supplies fit in an PC/AT case. More importantly...without a 
PS/2 style keyboard connector and, DB25 and DB9 connectors mounted on 
the back of the board I don't see how I can put this mobo into an ATX 
case.

Tony

On Friday 15 November 2002 10:02 am, Richard Langis wrote:
> My neighbor had a Socket 370 board with an AT-Style Keyboard
> connector. I think the PS was ATX, but the combination was odd, to
> say the least.
>
> -R
>
> Derek Loree wrote:
> > On Fri, 2002-11-15 at 08:04, Richard Langis wrote:
> >>I have a couple of ATX P1 boards.  The last iterations of the P1's
> >> would allow higher bus speeds (75/83+), ATX form factor, PC100
> >> DIMMS, etc etc.
> >
> > I've seen boards that have both AT and ATX connectors (the FIC 503+
> > comes to mind)  usually designed for the AMD processors that still
> > used the socket 7 pinout.  Most of these could run up to 100Mhz
> > front side bus.  Some of these could take either SIMMS or DIMMS for
> > memory too.
> >
> >>-R
> >>
> >>Scott VanHoosen wrote:
> >>>Pentium 1? For that era, it is most likely an AT power supply
> >>> rather than an ATX. AT power supplies have a "hard" switch and
> >>> cannot turn themselves off.
> >>>
> >>>-Scott
>
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-- 
Anthony Schlemmer
aschlemm at attbi.com