[ericdwilso]

I bought a 50W Touch micro ATX (SP9627) PSU. I cannot seem to figure out the wiring arrangement. I looked at the formfactor spec. It would seem to indicate that there should at least be standby power even when "off", but I cannot seem to find it. The connector is a 24 pin (2x12) connector, slightly different shape than the standard calls up (no locating "rib").

There is a 3 position connector for the power switch... I jumpered a pair of the terminals and that started the PSU.

Can someone tell me how to wake this thing up? Thanks!

[Al_The_Man]

This help? http://www.bluemax.net/techtips/ATXP...pplyWiring.htm

Al.

[ericdwilso]

Looks promising!... I'll give it a try tomorrow!.... P.S. Thanks for the link for the divide-by-N jamin'... Eric

[Mike Wood]

Make sure you have sufficient load on this supply - on the +5v and I forget maybe the 12v as well. I usually connect an old hard disk and a load resistor on the +5v - It's a switcher and running without a load will damage the supply.

[ericdwilso]

Might be too late for this one? I already started (maybe... the fan was running) the PSU without load... It does not have a HD connector. Just a 4 pinconnector for a MB?

The other connector is a 12 pin... not 24 pin as I had thought first. No green wire.. On the 12 pi, I have a bunch of black wires; one yellow; one orange; one white and three red. Further comments?

[Mike Wood]

Typically there are a couple four-pin connectors for the disks (floppy, hard disk etc) and a larger connector for the motherboard, which varies. I'm not up on all the different configurations, but there are several sights out there with info. Here are a few I have used in the past:

Be careful, this is not simple linear stuff; it's serious and dangerous!!

Pin outs
http://www.pcguide.com/ref/power/sup...erboard-c.html
Repair (try General SMPS Troubleshooting Approach section for typical load)
http://www.repairfaq.org/sam/smpsfaq.htm
Theory
http://www.onsemi.com/pub/Collateral/SMPSRM-D.PDF

I hope this helps
Mike