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Author Topic: Applex V  (Read 52 times)

SilentSniper

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Applex V
« on: April 04, 2004, 05:56:00 AM »
Hi,

I installed another AppleX V this morning, but, when booting up it almost always takes the MS bios and not the modchips bios.
Is this normal (v1.1 xbox) or is D0 maybe a bit instable?
Because with my own v1.4 xbox it always takes the modchips bios when i power up by holding the power button a bit longer then normal, but with this v1.1 xbox when i hold down the power button it shutsdown again or sometimes boot with the modchips bios... very weird and frustrating because everything works fine except that you need to boot 50 time before u got it with the modchips bios...

Can anyone help me with this?
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AcadianMan

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Applex V
« Reply #1 on: April 04, 2004, 12:57:00 PM »
I would say you have a solder connection problem. Try grounding D0 to the metal on the screw hole. This will force the mobo to boot from the LPC. IF you are still having the same problems then resolder your LPC points. If it boots fine after grounding then you have a D0 connection problem.
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SilentSniper

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Applex V
« Reply #2 on: April 05, 2004, 12:20:00 AM »
So, by grounding D0 it would force the box 2 always boot from the chip?
If so, that would be like SWEET :)
I'll give it a try...

EDIT:
Thoughts: if I ground D0 can it damage the chip?
Because normally on bootup D0 gives 1 pulse to the chip so it knows to boot up right? By grounding you get a pulse all the time, wouldnt it damage the chip?

This post has been edited by SilentSniper on Apr 5 2004, 11:02 AM
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AcadianMan

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Applex V
« Reply #3 on: April 05, 2004, 07:38:00 AM »
No it won't damage your chip. It's just telling your Xbox to boot from the LPC.

I wouldn't consider this a permanent solution. I would consider this a test solution. You ground the D0 point coming from the motherboard to a screwhole to check to see if the problem lies with your LPC connections or elsewhere.
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SilentSniper

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Applex V
« Reply #4 on: April 05, 2004, 09:08:00 AM »
By grounding D0 it doesnt work, i desoldered the D0 from the motherboard and connected it to a ground screw. Then the modchip never works, so maybe i didnt quite understand you? Or its just wrong.
I resoldered the D0 back to the motherboard and it works again, but same problems like before.

I think it has to do with the xbox's version... 1.1 of 1.2...
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AcadianMan

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Applex V
« Reply #5 on: April 05, 2004, 09:30:00 AM »
The part in quotes is copied from my last post

"You ground the D0 point coming from the motherboard to a screwhole"  Not the modchip. Basically unsolder D0 from the modchip and solder it to the metal of the screw hole. So the wire should run from the mobo to the screwhole causing it to go boot from the LPC.

If it frags then you either have bad soldering on the LPC or you have a bad chip. The first would be my guess.  I would invest in a desolder pump and remove the solder from the LPC's completely and then start from scratch.


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matthew2456

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Applex V
« Reply #6 on: April 06, 2004, 02:10:00 AM »
are you turning it on right?
with apple x dont you have to hold the power button to boot with chip?
just a thought
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Chancer

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Applex V
« Reply #7 on: April 06, 2004, 05:52:00 AM »

" Hold the power button for 1-2secs to boot with the modchip enabled"
Quick tap is boot from M$ bios and Hold power is boot from the chip.
This would obviously not apply with the D0 grounded as the chip boots all the time then and the D1 wire is not required in this state.
The original problem is poor soldering to the LPC by the sounds of it so I would defo re-install the lot.

This post has been edited by Chancer on Apr 6 2004, 12:52 PM
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Troed

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Applex V
« Reply #8 on: April 07, 2004, 12:50:00 AM »
QUOTE (Chancer @ Apr 6 2004, 11:52 AM)
The original problem is poor soldering to the LPC by the sounds of it so I would defo re-install the lot.

Why are there so many people on these boards who post "advice" without knowing the subject?

*) Grounding D0 selects between TSOP and LPC

*) Bad LPC-connections will mean the Xbox can't read the bios off an LPC modchip

... so, in a case where the Xbox boots off the TSOP instead of the LPC, the error _must_ lie with D0 - it _cannot_ have anything to do with the LPC points since the box would FRAG then.

I'd suggest looking over D1 as well in this case, since it's also involved in selecting whether the box boots off LPC or not. There's also one additional thing to remember - some AppleX V chips are "flaky". They can work fine in one box, but in another produce symptoms like not being able to boot the first time etc (resetting the clock when that happens). They have been replace with the Duo-X from the manufacturer.

This post has been edited by Troed on Apr 7 2004, 07:54 AM
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Chancer

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Applex V
« Reply #9 on: April 07, 2004, 10:20:00 AM »
QUOTE
*) Bad LPC-connections will mean the Xbox can't read the bios off an LPC modchip

I would take your own advice troed and also think before posting.
No one said that the D0 connection did not select between TSOP and LPC bios.
Also a high resistance solder connection on the LPC will not always cause a frag.
had it and done it in practice
Take this example. The chip is grounded via pin 2 of the LPC and if D1 is used as it should be to boot the chip this then grounds the  the Xbox D0.  If the Xbox D0 is soldered onto the point on the AppleX board how do you get the D0 to ground???
Yes through the LPC connection. What happens if pin 2 is not grounded due to a poor connection Not FRAG but boots the M$ bios. Can also power down in between.
Before you give "advice" check your theory.
QUOTE
They can work fine in one box, but in another produce symptoms like not being able to boot the first time etc

Pure speculation as most of the problems are down to poor installation. Checked on the computer of the Applex installs and had 2 with instability problems cured by guess what resoldering the LPC points.
I reply based on what we see day in day out in the workshop not based on sat reading everyone elses posts and duplicating that stuff
Must say I did not realise that Team Omega also made the AppleX. I thought AppleX was Taito.

This post has been edited by Chancer on Apr 7 2004, 05:39 PM
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verawarez

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Applex V
« Reply #10 on: April 07, 2004, 07:50:00 PM »
Hi, i'll give to you few suggestions/options for solving that problem

First you could try to touch with the tip of the iron every lpc hole

Second if that doesn't help try to remove the mod (a hard work) and reinstalling if that better not solding directly to mobo, better try pinheader or cable way

Third If you couldn't remove the mod, you could do this (solding a cable above the mod (upside face of the mobo) and then soldering to the downside respective point in the downside face of the mobo doing this you get a better connection in every lpc point

in this way you could solve your problem in a easy way i think

Good luck, Your Mexican Friend from Cordoba Veracruz Mexico

Verawarez
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