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Old 05-25-2008, 02:26 PM   #8
kibble
Constant Bitrate
 
Join Date: May 2008
Posts: 169
Well, I haven't really done much extensive testing of the timing after attempting to program it, but I could do that with a power supply tester that I have instead of putting everything back together, I'll connect the thing to my oscilloscope and check for the pulse and all to see if it's working as it should.

I thought when they said it would blink that you'd be able to see something more visual than just a quick on/off and that's it.

The biggest timing issue I have with the power supply is that I'm using an intel board and for some reason, they feel the need to completely turn on the power supply for a second and then turn it off after the 5VSB turns on. Well, what happens is that the m4 sends the "on" pulse right before this procedure finishes and the mobo misses it and somehow the m4 latches all the rails in the "on" state, so even though the mobo isn't telling the m4 to be on, all the rails are on. When it's like this, I can't do anything. I found a work-around but it involves shorting out the ps-on line to ground for a second and then the m4 shuts off. Once the m4 is off again, I have to remove the ignition signal and then re apply it before it goes into hard off and THEN the mobo will power on. I was hoping maybe with the new timings this wouldn't be an issue, but I'm not holding my breath.

If this doesn't make sense, I'd have to make a timings chart or show a video so it makes more sense. I know it sounds very confusing.

If I can't get this solved, I'll have to resort to making an extra circuit that waits for a few seconds longer to turn on the mobo. It's very frustrating because I have to completely disassemble the pc to get to the power supply. I haven't even mounted it in my car yet because I haven't gotten this to work.

Oh, one more thing. On the changelog on mini-box is says that:

04/15/2008 Removed C53 (adjustment to the 5V rail rise time)

Do you happen to know what exactly it did to the rise time? Did they completely remove it or change the value to something else?
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