Does a softmodded 1.6 have this same problem?

guess ill have to go with a Xenium ice

This guy on the SmartXX forum say that this is a problem for the Xenium ICE also, as well as all other modchips of this type. "Larry1981" seems to think he knows best:

http://www.smartxx.com/forum/thread.php?th...533&page=1&sid=

So what should we believe? Is the Xenium as bad as the others?

http://www.teamxecuter.com/index.php?name=...p=132218#132218

Guys.. Check this out...

Tested in Crystal Box (2004-09-09)
Version 1.6 (Brand new from store)
Tested with all components plugged in - AV Cable / Power and Network cables..DVDRom and Original HD. External USB Connector also plugged in.

XeniumIce - Measured D0 (Xenium OS 2.0.1)

At Xenium OS Menu- D0 = 0v
At MS Dashboard ( Chip disabled) - D0 = 3.3v
Chip enabled with Evox M8 PLus 1.6 - D0 = 0v

Can't be 100% sure without the scope.. but it appears that the Xenium keeps the D0 line pulled low.. this strongly contradicts what Xenium says about pulsing the line.. i would have to strongly disagree... my meter reads a dead 0v .. no fluctuations.. not even 1mV . Period.

Will continue testing X Chips in the morning.

jROC

i think my new crystal has fallen victim to this... i was watching a dvd in the original bios, and i turned it off, then started m8 a half second later... only to frag... boots without chip, but i cant get the smartxx to work now,

Could the resistor install be accomplished by soldering it between
D0 and the ground point? This would eliminate the need to cut a trace and solder something else to the board. I plan to test this but haven't had time to do so yet.

TFP

Well after modding like 150 1.6 xboxs and not even 1 with problems last 3 months, I wouldt take this warning too serious!

I am using all modchips:

Xecuter 3.0 more than 20 1.6 xbox
Xecuter 2.6 more than 50 1.6 xbox
SmartXX V2 more than 25 1.6 xbox
DUOX 2 more than 50 1.6 xbox

X3 test Results are IN

Crystal Xbox Edition - 2004-09-10 (different console that the Xenium test)
V1.6

D0 Tested with X3 and X3 1959 1.6 Bios

D0 at X3 config screen = 0v
D0 with chip disabled at Ms Dashboard - 3.3V
D0 with chip enabled = 0v

Results are the exact same as the Xenium...both chips have the same 'problem'

jROC

Soldering the resistor between Lframe and ground will only do one thing make the xbox boot from the mod all the time.

[QUOTE]Well after modding like 150 1.6 xboxs and not even 1 with problems last 3 months, I wouldt take this warning too serious![QUOTE]

Its up to you. there would be no long termeffect with the DuoX any way. All the boxes were done 3 months ago then? The problem is the long term effect (possibly) not short term(3 months is not long term)
Nobody knows yet what the outcome will be after say 12 months but if it is bad you are going to have a lot of boxes to fix.

While not an ideal solution, one possibility is to place a tri-stating buffer driver in series with the D0/LFrame connection on the modchip. The tri-state would be enabled by a time delay provided by a standard RCreset style circuit and OR gate, setup such that either after one second or if the Mod chip its self is tri-stated the gate will tri-state. It’s kludgey but would work. I’ll have a prototype built by the end of the holiday (assuming I can get enough sample parts).
-nB

cat dog you need to edit your post stating that XEnium and X3 both have this problem

when installing a cheapmod on a 1.6 we have to cut that trace anyway, is it still advised to put a resistor in? or will it not matter as the lframe is going to the modchip?

it has disappeared for me as well...It seems as if edit is missing all over

it seems to be back

http://forums.xbox-scene.com/index.php?act...=2083962&st=165


http://forums.xbox-scene.com/index.php?sho...ic=305938&st=0#

is your post

is the syntax you will have to change the numbers of course. andit has been 100% confirmed that the xenium and x3 hav this problem

you only have the option to edit your posts for 15 minutes after you make them, then they are locked and can only ber edited by mods or admins

Im thinking of actually taking my 1.6 crystal with smartxx v.2 down to the lab to check what they do with the LFRAME. I have access to a logic analyzer (is it called that?) so then I can se exactly what they do...

but I don't know if I have time at the moment, but when I have I will if nothing definite has come out about the smartxx by then...

/pablot

i think this post explains this perfectly !!!
http://forums.xbox-scene.com/index.php?sho...dpost&p=2024346

also.. looking at this diagram,
i presume u could put the resistor where you cut the track
(as in ontop of the board)

Well now gonna try !, as i dont wanna go thought getting the m,otherboard out again (as i put some other mods in there (lights etc)

Mick ..

so if installing a duox2 in a v1.6 there is no worry about this correct?
so I have nothing extra to do aside from rebuilding the lpc?

If you fit a Duo X2 you have no need to do the resistor mod.

I just have to say that since we have seen no official comments from the makers of any of these modchips I call shenanigans on this thread.

And trying to measure a pulse with a voltmeter and making a conclusion based on that is at best dodgy. Electrical engineers? Hmmmm...

As you say, we will see in a year or so if close to 100% of the 1.6s modded fails. I doubt it.

I also saw where hippo has been doing research to fix this with his chips
so are the latest clevermods also free of this problem?
i have two on order, and I would just like to know if I am going to have to do this mod in the future or not. I would rather stick to chips that dont require any of this extra work if I can

thanks
pedro

umm hommie the xenium has the same problem jroc proved that, The Xenium and the Xecuter have this problem.

Hi, i was thinking of buying an X3 and doing the mod. On the executer forums they have said

'well, i wouldn't do that resistor mod, since the Xyclops chip is designed to get a 3.3V signal and you put a resistor in there it is very likely it would become unstable, so if you are going to cut the lframe trace to do the resistor mod i would cut the trace and put a switch on the outside to reconnect the lframe to the xyclops chip, then there wouldn't be any problems, you would just have to use an external on/off switch. and besides, we don't even know if the shorting of lframe would harm the box, probably the box would brake pretty since there is no resistance compared to the resistance in the xyclops chip... well i guess xecuter would know what he is talking about but when his statement is faulty about the pinching the lframe for a short time it seems a bit weird. or maybe he meant that shorting out lframe wont harm the xbox... noone knows for sure...'

Anyone with an X3 done this mod and have any problems/ instabilities?

i havnt dont it yet....frankly im afarid too. Theres a new bios com,ming out. maybe somethign sneaky will develop in that bios

How could an updated bios fix this issue?

It most likely can't...unless the line is actually controlled by the software and they are able to modify it.

jROC

for those worrying about cutting the trace , its actually quite easy. easier in fact than soldering to the v1.1....5 top do point. i solder the pins in, do the repair, cut trace and bingo always on( the aladdins i have at the mom. dont need bt.). i just use a small plastic magnifier( xmas cracker quality!!) and a stanley blade.

quote:
QUOTE (zikronix @ Dec 9 2004, 06:51 PM)
I dont think this will work as its not the voltage on the D0 its the voltage to xyclops chip. If I understand correctly


True, but we are trying to limit the current drawn from the Xyclops chip. The excessive current is generated by gounding out the pin. The resistor will cause the current sourced from the chip to be reduced and preserving the life of it but the question is will it still cause the xbox bios to be disabled and allow the mod bios to load?
unquote:


This could work! Why?
- You get a resistor divider Voltage difference between 3,3Volts and 0Volts.
Electronic parts have a range were they operate in;
say all voltages between 0-1Volts is recognized as 0 Zero
and all voltage above say 1,5Volts is recognized as 1 One
- If you pull Lframe direct to 0 Voltsthe maximum current is drawn from xyclops.
But if you use a resister between; teh current is decreasing and lifetime is increasing.
- If you use a REGULATEBLE RESISTOR (potmetre) between Do and ground on the LPC bus, with a range say from 0 till 1000Ohms, then by turning the pot; you get
the voltagedifference lower and lower, and set it just at the point that the modchip is turning on. In practice, this is not excat 0 Volts; but (much) higher!
- Then every xbox can be set just to work properly, and draw as less as possible current. It's not perfect, but the increase is better then not.

ok, so i im about to order my xenium ice for my new 1.6. please post if anyone has proven that the ICE DOES suffer from this problem

Why does this not apply to ALL version's of XBOX's.

Does not ALL chips GROUND an output.

On versions before v1.6, the "d0" line of the MCPX is grounded during
all the time the LPC modchip is running.

Would not grounding the output of a active data bus pin directly connected
to the MCPX chip cause the same shorten lifetime problem?

Is this way some very old v1.0 mainboards with no damage to the traces
FRAG always as if the "d0" trace was damaged, even tho there is none?

Just my random thought for the day.

This thread seems to have gotten very quiet...
Has anyone performed the mod and confirmed it is 100% working and stable. Although its not confirmed whether such a mod will extend the life expectancy, I was just wandering if the mod itself was stable and confirmed to atleast cause no change in the xbox (ie instabilities or FRAGing, etc.)