CompuServe Messages

Rick, Without tearing open a 2000, I couldn't say what the layout of the motherboard should be. My own 2000 is a Rev 6, which is somewhat different although the jumpers are labeled the same way. I can say that the only purpose of J500 is to supply a 'ground' signal to the Gary chip for configuration purposes. Your picture then looks right.. The heavy trace on B would be the ground bus. C probably goes to some other place using a ground, so I wouldn't sweat it. The trace to the Gary from 'A' is another matter. With it disconnected (did you ohm it out?), it's the same as if the jumper is out regardless. Trace A probably goes to the pull-up resistor for the signal on the gary pin. GND—–< >——-/\/\/\—5 volts j500 | | GARY So, if the trace from Gary to point A is broken, the Pin will electrically "float" to some voltage, instead of the 5v supply level through the resistor. I forget whether MOS chips float true, but it's not good practice to let pins float. It might work, but be flakey… I don't know what to tell you about the bottom of the MB. Without seeing it, it's hard to tell. You know that the 2000 is an (at least) 4 layer board? Even if it looks like a trace isn't connected anywhere, it may be routed inside the board. Traces can go from one side to the other or one layer to another through via holes that look like small solder pads. If the trace doesn't look fried, I'd leave it alone. -Jim