burtle@cs.odu.edu (William J Burtle) (07/17/90)
Does anyone know how to add a reset switch to an AT-compatible? I read something about a "Power Good" line, but I cannot figure out which one it is; it is not labeled, and I do not have a technical reference for my machine. (It is an ARC/286). I already put a normally-open momentary-contact button into the chasse, I just need to wire it up on the inside. The power supply has two connectors into the mother-board. (one is closer to the rear of the unit -- the power good should be on this one?). Each of the two connectors has (I think) six lines on it. Can someone help me out? Please email me at: burtle@cs.odu.edu Thanks a lot, Bill Burtle Old Dominion University Norfolk, VA
grege@gold.GVG.TEK.COM (Greg Ebert) (07/18/90)
In article <BURTLE.90Jul17125130@buttercup.cs.odu.edu> burtle@cs.odu.edu (William J Burtle) writes: >Does anyone know how to add a reset switch to an AT-compatible? >I read something about a "Power Good" line, but I cannot figure The power-good signal is on the orange wire, and is at the edge of one of the connectors [ hey, there are only 4 possibilities]. It's active-high, you you need a way to 'yank it down' at will; I would use an SPDT switch as follows: (power supply) -------------o \ \o-------> to motherboard o | v to ground (black lead) The switch is normally connecting power_good to the motherboard; to do a reset, momentarily connect the wire to ground.