LPC problem

[comcipher]

I've been modding boxes for years now, but this box is driving me crazy. It's a 1.0, so I did a wire install. Everything soldered in properly, but no boot. I checked all the soldering, and even swapped in a different wire loom just in case that one was bad for some reason. Still no go. I've flashed the chip w/ a programmer just fine, and it has the proper bios on it. Flashed without any problems. I've gotten to the point where I sucked all the solder out of the LPC points in order to do a header pin install, but I ran some continuity checks on all of the points.

Points 2 and 12 are connected, but they are both ground.
Points 8 , 9, and 15 are all connected.

Pins 9 and 15 look to both be 3.3v, so is there a problem there? It's why pin 8 seems to be connected that bothers me. Any ideas? Broken trace? Try the header pin? All the pin numbering and the like i'm referencing
http://www.xbox-scene.com/articles/lpc-diag.php
and the image he posted. Anybody have any ideas?

 

[comcipher]

Oh, forgot to mention that it boots with the chip off just fine.

 

[Fantmx]

Check the switches with a multimeter.

 

[comcipher]

What switch? The mod chip switch? I'm sorry, I just don't quite understand what you are reffering to.

 

[Fantmx]

The switchboard that came with your chip. It is possible the switches are not making contact. If that works, I would check the connections between the wires and the switchboard.

 

[comcipher]

How should I go about testing the switches? Check for continuity? Between which pins should there be continuity and which ones shouldn't there be any? The chip on / off switch seems to work fine as I can turn the chip off and it will boot, and i'm assuming the flash protect / unprotect works fine becuase in order to flash the chip with a programmer it had to be set on unprotect. Thank you for the help so far.

 

[Fantmx]

Take the tape off the switch board. You will see your points. Flip the switch to bank 1. When you measure that side, there shouldn't be much resistence. There should be an infinite amount on the other side. Then select bank 2. It should be the opposite.

 

[comcipher]

I feel like such a n00b. Anyway, I tried testing for resistance, but i'm getting 0 resistance both ways. I'm assuming the points to check are the two larger points on the bottom of the switch, read lead on one and black on the other. No matter which way I orient the leads or have the switch I always get 0. Also, is this the right place to be looking for the problem? After all, without anything connected to the board at all,
points 2 and 12 are connected, but they are both ground according to the chart over at xbox-scene, and
points 8 , 9, and 15 are all connected. Wouldn't that suggest a broken trace or something on the board itself rather then the switch?