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Need Help Testing Lpc Connection!


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#1 Software2

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Posted 17 December 2003 - 01:19 AM

I wired my Xecuter 2.2 Lite+, and have gotten it to frag, but can't get it to load the bios.

I want to make sure that my connection to the LPC points is good.

I have very little experience using a multimeter, so if anyone could help me with step by step instructions in plain english, I'd be very greatful.


I have the following selections on my Multimeter:

Off

DCV
500V
200V
20V
2V

OHM
2M
200K
20K
2K
200

(Some weird symbol)

DCA
2mA
20mA
200mA

ACV
200V
500V



Unreal7000 told me the following:
QUOTE
Put the multimeter on Ohms, try any range. Then put the black or negative to the metal part of the xbox. Then touch the red or positive to the piece on the mod-chip. If the meter jumps when you touch them both, then it is aligned properlly.


Then I responded with:
QUOTE
I want to be 100% sure I'm understanding you correctly. smile.gif

By metal part of the xbox, what do you mean? The case?

What do you mean by the peice on the mod-chip? Each point where I've soldered the wires to?



Days later, I got plenty of irrelevent replys, but none that actually answered my question. So, please. I'm desperate. Does anybody know this???


#2 Software2

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Posted 17 December 2003 - 02:59 AM

Are you people incapible of answering such a question? dry.gif
How did you people ever check your LPC points? wink.gif

I'll buy a round for anyone who answers! beerchug.gif

#3 GLaCiERDC

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Posted 17 December 2003 - 03:07 AM

QUOTE (Software2 @ Dec 16 2003, 11:59 PM)
Are you people incapible of answering such a question? dry.gif
How did you people ever check your LPC points? wink.gif

I'll buy a round for anyone who answers! beerchug.gif

quit bitching!

go ask a damn electrician, someone who knows about electricity and how to use such tools since we are such dumbasses for not telling you super fast

go away mad.gif

#4 HAL2001

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Posted 17 December 2003 - 03:10 AM

I'll try...

Ohms measures resistance between two points. If you get a readback of infinity, it means the circuit is closed, if you get any value readback other than infinity it means that there is current flowing between those two points. By grounding one probe (touching it to the metal casing of your xbox - I would try the screw you hooked your modchip to (or perhaps the Lite+ doesn't hook to the screw, I can't remember) either way, one of the screws holding the mobo down, and the other probe to the wire that is connected to the LPC point you should be able to see if there is current flows between those two points.

So that if you are to touch a probe (it doesn't matter, BTW, black or red) to the ground point and then the other probe directly to the LPC point you should, if your multimeter is setup correctly, get some sort of reading for resistance (measured in ohms). However, instead of measuring it directly on the LPC point, touch the pogo-pin of the modchip that is touching the LPC point. If there is good connection between the pogo-pin, the LPC and ground you will get some reading for resistance as well. If the reading is infinity then the circuit is closed and the connection is bad.

If your xbox if fragging then it cannot find a bios to boot. We can rule out d0 as being the culprit as your onboard ms bios has been successfully grounded out, that means that either your LPC points are not aligned correctly or you don't have a bios on your modchip. Which brings me to my next question, which website did you buy your modchip from?

Hope that helps.

Oh, and I'll that we "we people" don't check our LPC points, because we solder our chips in...

Edited by HAL2001, 17 December 2003 - 03:12 AM.


#5 Software2

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Posted 17 December 2003 - 03:20 AM

Thanks.

Sorry if my sarcasim wasn't obvious enough. I didn't mean that seriously.


And I do have it wired in. I realized the error of using the solderless option a tad too late, but I have wired it instead.

So before I go out and buy that thing to flash my chip, I'd like to make absolutly sure that I did a good job soldering. So thanks again Hal, for all your help.


(And GLaCiERDC, shhh. I've been trying to get this simple question answered for days. I wouldn't call that super fast, would you?)

#6 GLaCiERDC

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Posted 17 December 2003 - 03:21 AM

QUOTE (Software2 @ Dec 17 2003, 12:20 AM)
(And GLaCiERDC, shhh. I've been trying to get this simple question answered for days. I wouldn't call that super fast, would you?)

not at all "fast" but you word yourself like if we owe you and if you dont get your help then we're crappy people or something, thats all.

#7 Software2

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Posted 17 December 2003 - 03:33 AM

Well, like I said, I was trying to be sarcastic. Sorry if it didn't come off as such.

#8 HAL2001

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Posted 17 December 2003 - 03:42 AM

A programmer is cheaper than a multimeter and if you've soldered your chip to your LPC points the problem is probably the bios.

Say, you don't have a v1.5 xbox do you??

#9 Software2

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Posted 17 December 2003 - 04:00 AM

I've got a multimeter already, so I figgured I might as well do that first. Besides, I don't think I can wait for a programmer wink.gif

Read the sig! (1.0, baby!)

#10 HAL2001

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Posted 17 December 2003 - 04:03 AM

If you have access to another modded xbox you can hotswap the chip and flash it that way.

And I did read your sig! Just thought I'd ask.

#11 Software2

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Posted 17 December 2003 - 04:10 AM

I wish I did!

Everyone around me with an Xbox has been waiting to see how my modding turns out. So I'm the guinea pig sad.gif


BTW... I got my chip from system-mods.com
Any negitive history with them?

#12 HAL2001

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Posted 17 December 2003 - 04:16 AM

No, system-mods is good. I've never heard any negative feedback for them. And I have to ask, did you make sure and put the switch in the right location for your version xbox? Other than a faulty connection to the LPC that's all I can think of. If you did, then I'd just check it with the multimeter and make sure your solder points are shorting any other points out...

Edited by HAL2001, 17 December 2003 - 04:17 AM.


#13 Software2

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Posted 17 December 2003 - 04:23 AM

Yeah, it's all good there smile.gif

Make sure my solder points are shorting any other points out?
I assume you mean make sure they aren't shorting any other points out. But how could they, besides excess solder (which there isin't any)

#14 HAL2001

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Posted 17 December 2003 - 04:30 AM

excess solder, bare wires touching each other, bare wires contacting ground...

#15 Software2

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Posted 17 December 2003 - 05:34 AM

Nope, that's all good.

I guess I'll have to check it after I get back from my trip.

Thanks so much!




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