OT - AT&ATX PSU compatibility
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Is it possible to run an ATX board from an AT power supply? I checked the pin setup on both, the only thing that's missing is the 3.3v, which I assume is for communication between the board and PSU which shouldn't be neccessary, since I would be switching the PSU on and off directly. Thanks Hans == Find businesses and have your business found: http://www.brabys.com
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On Monday 23 September 2002 08:25, H du Plooy wrote:
Is it possible to run an ATX board from an AT power supply? I checked the pin setup on both, the only thing that's missing is the 3.3v, which I assume is for communication between the board and PSU which shouldn't be neccessary, since I would be switching the PSU on and off directly.
Thanks Hans ================
Hans, There are adapters that you can get to make it work, but if you are using a newer motherboard and the power supply is an older unit, I am not sure I would advise it. Voltages changed for the new motherboards in some ways and you could be taking the chance of killing it using the older power supply. Patrick -- --- KMail v1.4.3 --- SuSE Linux Pro v8.0 --- Registered Linux User #225206
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I checked the pin setup, and the voltages correspond. ATX
just has the extra one with 3.3v. I know I won't fry the
board, I just want to know if anyone's ever done this, and
if it works.
The board is a 1999 model, the psu probably about two years
older.
Thanks
Hans
On Mon, 23 Sep 2002 10:05:38 -0400
Patrick
On Monday 23 September 2002 08:25, H du Plooy wrote:
Is it possible to run an ATX board from an AT power supply? I checked the pin setup on both, the only thing that's missing is the 3.3v, which I assume is for communication between the board and PSU which shouldn't be neccessary, since I would be switching the PSU on and off directly.
Thanks Hans ================
Hans, There are adapters that you can get to make it work, but if you are using a newer motherboard and the power supply is an older unit, I am not sure I would advise it. Voltages changed for the new motherboards in some ways and you could be taking the chance of killing it using the older power supply.
Patrick -- --- KMail v1.4.3 --- SuSE Linux Pro v8.0 --- Registered Linux User #225206
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On Mon, 23 Sep 2002 14:25:01 +0200
"H du Plooy"
Is it possible to run an ATX board from an AT power supply? I checked the pin setup on both, the only thing that's missing is the 3.3v, which I assume is for communication between the board and PSU which shouldn't be neccessary, since I would be switching the PSU on and off directly.
I have an old board that accepts either type of PS AT, or ATX. It has 2 sets of connectors 1 for AT and 1 for ATX. So you may be right. Let us know if you fry the board :-) -- use Perl; #powerful programmable prestidigitation
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Hehe, I won't try it if I don't know for sure it will work. This board is my dad's ticket out of Pentium classic land (finally)... My own board also has both AT and ATX connectors, thats why I think it should work. Thanks HAns
I have an old board that accepts either type of PS AT, or ATX. It has 2 sets of connectors 1 for AT and 1 for ATX.
So you may be right. Let us know if you fry the board :-)
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On Tue, 24 Sep 2002 18:00:54 +0200
"H du Plooy"
Hehe, I won't try it if I don't know for sure it will work. This board is my dad's ticket out of Pentium classic land (finally)...
My own board also has both AT and ATX connectors, thats why I think it should work.
ATX power supplies also provide a 3.3v output to the MB. AT powers supplies are 5v If your MB has connector for both, it must provide the 3,3v regultaion on-board. So if you are running a processor that needs 3.3 v then your motherboard will need to have a jumper setting to change the 5V to 3.3. -- use Perl; #powerful programmable prestidigitation
participants (3)
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H du Plooy
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Patrick
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zentara