noen
12-04-2003, 11:37 PM
Ok I am sure this violates all kinds of laws and regulations, but I for one had a half dozen or so perfectly good AT power supplies lying around a year or two ago.
Frankly I like AT MUCH better than ATX power supplies. Why you ask? Because they had a REAL power switch. You turn the switch and the power is OFF. So much more convienant than the soft power garbage today.
So here is how to take an AT psu and make it an ATX, or vice versa. I will warn you that this isn't advised for high load systems, because very few at power supplies were rated for 300w usage.
To go from ATX to AT is very very simple, here are the two diagrams you need:
http://www.snotmonkey.com/files/atxtoat.jpg
http://www.snotmonkey.com/files/atxtoat2.jpg
To go from AT to ATX, it is slightly harder. Because AT didnt have a 3.3v line, you have to create your own either from the 12 and 5v rails. I am not going to describe the procedure for that, because frankly it is not something to be covered in a simple tutorial style howto. But for anyone even slightly knowledgeable with electronics, it takes about 5 minutes to wire up.
At any rate, just bridge pins 14 and 15, to make the soft power on stay on always, wire as needed for +3.3v pins 1,2, and 11, and splice pin 5 into a ground.
Have fun and dont kill yourself!
Frankly I like AT MUCH better than ATX power supplies. Why you ask? Because they had a REAL power switch. You turn the switch and the power is OFF. So much more convienant than the soft power garbage today.
So here is how to take an AT psu and make it an ATX, or vice versa. I will warn you that this isn't advised for high load systems, because very few at power supplies were rated for 300w usage.
To go from ATX to AT is very very simple, here are the two diagrams you need:
http://www.snotmonkey.com/files/atxtoat.jpg
http://www.snotmonkey.com/files/atxtoat2.jpg
To go from AT to ATX, it is slightly harder. Because AT didnt have a 3.3v line, you have to create your own either from the 12 and 5v rails. I am not going to describe the procedure for that, because frankly it is not something to be covered in a simple tutorial style howto. But for anyone even slightly knowledgeable with electronics, it takes about 5 minutes to wire up.
At any rate, just bridge pins 14 and 15, to make the soft power on stay on always, wire as needed for +3.3v pins 1,2, and 11, and splice pin 5 into a ground.
Have fun and dont kill yourself!