Yesterday I planned to order some new AT power supplies. Unfortunately they have now quit selling and I asked about them just a couple of weeks ago. What now? Should I just try with ATX power supplies using adapter cables? I'm not very happy about the situation.
The AT adapter would be your best bet if you cant find a new or trustworthy used AT supply for a reasonable price.
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Ordered some from http://www.ebay.com/itm/141865052797 Hopefully they will work.
AT power supplies would cost something between 70-100 euros each if ordering them, so I don't think it is worth it.
You may also want to consider the -5V issue - it has often been discussed here already.
1+1=10
An old A-Open 250watt ATX psu will be enough for an ATX-to-AT converter. As long as it has good caps.
The model I have used, are one of them from around 99/01. Model number: FSP250-60GTA.
This model are really heavy wich just tells me that it is quality all the way through. 😜
It has these ratings:
+3.3v = 16a
+5v = 25a
+12v = 13a
-5v = 0.3a
I have succesfully used an old Codegen 300watt PSU from 2003/04 too. Without any issues at all.
There are these:
http://www.ebay.com/itm/20P-ATX-to-2-Port-6Pi … VEAAOSwNSxVX3Xf
That have -5V line (white line are visible)
Or you can build your own like I did, were I used more rail-lines from the ATX psu, than are used on the "China-Converter".
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Those cakes make you sick....
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Is there any place on ebay (or somewhere else) where I could buy these P8/P9 connectors and make own ATX-AT adapter cables? I would also like to have the -5 volt available, but how is this done? Is there any schematic?
wrote:Is there any place on ebay (or somewhere else) where I could buy these P8/P9 connectors and make own ATX-AT adapter cables? I would also like to have the -5 volt available, but how is this done? Is there any schematic?
Usually -5V is made from -12V, with a 7905 type linear regulator. It just needs one or two caps on its input and output to keep it stable, and for extra stability, I'd put a resistor between 470 and 1kohm to the -5V output as extra load, because usually the voltage is not stable without some load. There's plenty of pictures of DIY ATX to AT cables with 7905 hacked in.
wrote:Is there any place on ebay (or somewhere else) where I could buy these P8/P9 connectors and make own ATX-AT adapter cables? I would also like to have the -5 volt available, but how is this done? Is there any schematic?
That's the thing.... I used two that came off an AT psu. (dead beyond repair)
Early ATX psu's had a P10 connector, that can be used too.
If you have access to two ATX psu's, then use them.
I have found this on eBay. Not the cheapest.
http://www.ebay.com/itm/ATX-Power-Supply-P8-C … 9AAAOSwvg9Xc-fL
Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....
My blog: http://to9xct.blogspot.dk
My YouTube: https://www.youtube.com/user/brostenen
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