Topic: Cheapmod+1.3 = Solved! (Read 521 times)

burgerbone · « **on:** December 31, 2003, 03:55:00 AM »

seems kinda odd that there are no other testpoints on the MB.

I'll have to try and look for one.

Cheers,

Heet · « **Reply #1 on:** January 02, 2004, 12:56:00 PM »

I did 3 boxes today all being 1.3-1.5 and all were easy. It took a magnifying glass, flashlight, and a eyeglass repair screwdriver but they all went a lot simpler than I first thought.

networkBoy · « **Reply #2 on:** January 06, 2004, 05:31:00 PM »

QUOTE (tony321 @ Dec 26 2003, 07:32 PM)

a quick question, what should the voltage at lframe be?

That really isn't a valid test, LFRAME is not a DC level it is a (rather fast) digital signal. You really need an o-scope to proprely test it.
-nB

a94cobra · « **Reply #3 on:** January 16, 2004, 04:52:00 AM »

Well, I don't have a o'scope handy these days, but if you do get the 3.2v at least you know you have a good connection on that wire. And a good connection means the signal transmitted should be coming through.

Pfk · « **Reply #4 on:** January 16, 2004, 05:52:00 AM »

QUOTE (s_cube @ Jan 15 2004, 07:53 PM)

got bored today and decided to go LFRAME# hunting....

since I've almost (....almost) fried my v1.3 a dozen times or so, I said what the heck! Used one of those overhead magnify-lamps w/ the flourescent light in it, another magnifying glass and a tiny precision (eye-glass) screwdriver. I didn't really need the lens on the lamp, but the movable lighting was nice. I just delicately scraped away the green until there was copper.
Someone said to look to the left of the video chip at the R7E3, but my xbox was labeled R7E4. The trace layout on the mobo looked the same though from my box to the picture (http://www.xdvds.lun...php?page=lframe) so I just went w/ it. If you see in the picture there are three traces from just left of the chip and running to the right under the video chip. I just took the middle one of these three traces on my mobo, followed it right until it intersected the video chip, then went directly right of it and scraped the second via till I saw copper (a few scrapes, not that deep). Fluxed and tinned it then put a bit of kynar on there and it worked. It took a readjustment or two; there's not much surface to mount to. The connection likes to break easily if its not done right (and then even still...), however, it all has gone well so far. Lets see what time will do to this in terms of reliability....
Well, thank you all for your inspiration and pioneering feats!
(did I say that correctly?)

s_cube

I'd like to agree with you on this only I don't have a board here with the 2nd row of pins visible. If you follow that trace down just a little, you will also see a point at which it passes through the board. If this is correct, you should be able to test for continuity between the 2 points, and if verified, should work for everyone. I may try on a 1.5 I have here for the hell of it

In this pic, you can follow the trace through the "4" in R7E4 and stopping in the middle of those 3 points. (I'd draw on it to show but do not have anywhere to host the file. so if anyone is up to it, go for it

)

Pfk · « **Reply #5 on:** January 16, 2004, 06:13:00 AM »

Here is the pic of the chip with the via exposed from a previous page,

user posted image

Pfk · « **Reply #6 on:** January 16, 2004, 06:38:00 AM »

I do appear to have continuity between the 2 points, can anyone else confirm this for me? I am not able to see the 2nd row on the board I have here and I do not wish to point anyone in the wrong direction. Hopefully someone will confirm because it is a heck of a lot easier to solder to than the original spot pointed out

Warclock · « **Reply #7 on:** January 17, 2004, 01:43:00 PM »

Does this LFRAME# link to anywhere at the bottom of motherboard? I am not an expert but I am sure that I can't barely see by my own eyes. Only magnify class would do but not enough to do anything.

Ben999_ · « **Reply #8 on:** January 28, 2004, 01:20:00 PM »

So how many of you have actually used this method with success? Seems way to small for me to try

mathius · « **Reply #9 on:** February 01, 2004, 07:31:00 PM »

Not really depends on the type/quality/refresh of your multimeter that 3.2 is prolly an average rather than peak, If you measured with an oscilator youd most probably get a higher reading

mathius · « **Reply #10 on:** February 03, 2004, 03:35:00 AM »

I wonder if theres a way to emulate the Lframe? does anyone have any info on the Lframe or know of any way to bypass this?... what method do the cosmetic/retail chips use?

networkBoy · « **Reply #11 on:** February 03, 2004, 08:32:00 PM »

The iNSOMNIAc · « **Reply #12 on:** February 05, 2004, 02:25:00 PM »

The BGA solder ball is missing thats why the chip vai does not have a contact / test point on the board. If you trace the track from lpc pin 3 on the under side of the board you will find it runs directly to the underside of the mcpx.. and there is no connection between the board via and chip via which means no solder between both points.

For all the noobs and non competant modders the only hope is a bios that has it's own lframe code and fits the sst, cheapmod or homebrew etc chips

Or buy a non lframe lpc mod.

networkBoy · « **Reply #13 on:** February 05, 2004, 08:00:00 PM »

networkBoy · « **Reply #14 on:** February 06, 2004, 08:53:00 PM »

Author Topic: Cheapmod+1.3 = Solved! (Read 521 times)