Intermittent Continuity Between Pins 2 and 6 of the LPC

kamikazi

Noob Account
Nov 3, 2004
7
0
USA
xbox v1.0
x3 pinheader install

Has anyone out there used a multimeter to check continuity between pins 2(ground) and 6(5.0v) of the LPC and gotten continuity on an intermittent basis? I have. The multimeter will beep for a second or two then stop. If I remove the probes and let it sit for a little bit, I can repeat the process. My guess is that the small charge the multimeter sends to check continuity is discharging a capacitor between the two pins, then refilling it until next time I try. Does anyone know if this is the case? I have resoldered the LPC a number of times hoping to solve my problem. I can say with certainty that the solder job is good and there is no extra solder getting to a trace and bridging these two pins. I think either something is fried or its the way it is by design. Does anyone know?

I'm investigating why I can't get my x3 to work properly as it is always grounded and simply plugging the power plug in turns the xbox on. If I remove the 2 wire plug that goes to the power and eject button, I can boot the xbox as stock with or without the x3 installed on the pinheader. Both blue LEDs come on and I'm getting proper 5v and 3.3v to the x3. I've investigated the problem with excess solder on the little adapter PCB and have solved that problem by bypassing it altogether. I have the x3 two wire cable soldered to my power and eject switches and have verified that the power goes to power and eject goes to eject.

Any ideas?
 

kamikazi

Noob Account
Nov 3, 2004
7
0
USA
It appears no one had any insight into this. As a last ditch effort, I removed pins 2 and 12 (ground pins) from the LPC pin header. I then attached a ground wire to the top of the x3 at pin 2. Since pins 2 and 12 are connected, and the wire install adapter doesn't even have a pin 12, one ground should be sufficient. I plugged the power in with high hopes, but they were dashed as the xbox fired up, grounded just the same. Just for the record; for anyone out there with the same problem my advice is to get a new modchip. It's too late for me to send mine back, so I'm out $60. I'm going to give the SmartXX chip a try. It appears to be set up nicely for Linux which is all I'm really interested in anyway. Also, it looks like there's no special connections to the power and eject module, it just uses the LPC and the d0.
 

Sentinel007

Senior Member
Dec 26, 2003
212
0
Re: 48hrs trail codes

i havent had xbox live since last november and just got a stack of games im dying to play on live, MW2 the most tho, that tropicana site has died apparently, used to be able to get codes from there.