Re: How to do a post boot/ startup?
It looks like it will be on the LEDH1 connector (item 7).
Hard to say which pair of pins it is, but based on the picture (in your manual) of the removal of said connector, I'd gues the red/white twisted pair, which appears to be the set farthest away from the front of the board.
All you need is a momentary short, I use a small screwdriver to touch the two pins together.
Of course, if you want the machine to turn on, you will have to do this with the power supply, et al, plugged in and switched on. If you short the wrong pins momentarily, there shouldn't be any harm, particularly if the computer is basically off at the time anyway.
Anyway, try touching two pins together, see if you get a response. If not, then try another two pins, etc.
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