tndb
solder on the backside of
the mobo.
1. There is No pins on the backside. Socket 939 - is surface mounted.
2. If you want to short any pins - fell free. :) If But I want to keep my CPU alive right now. :)
Printable View
tndb
solder on the backside of
the mobo.
1. There is No pins on the backside. Socket 939 - is surface mounted.
2. If you want to short any pins - fell free. :) If But I want to keep my CPU alive right now. :)
He said cloud, not the actual explosion. The radiation cloud did affect ALOT of Europe. :slap:Quote:
Originally Posted by prueg
On Topic: I dont have a clue about this JTAG stuff, but if you need anything simple to do with my system or similar, just ask. :) (Will update my sig to include my system specs)
:eek: :rolleyes:Quote:
Originally Posted by TiN_EOF
Im not awake :p
I was thinking of my older s462 boards.. sorry
But i think that bridging some pins are the last solution except for the jtag stuff.. But it sure is extreme and dangerous.. You´d have to know which pins that doesnt make the cpu burn out..
over and out
tndb
:D
I think that this don't help at all. There is no pins on A64 like in AXP. Forget about it. You will get 100% DEAD cpu. Better send CPU to me :) I'll keep work going with it :)
Without mad ideas about shorting pins of S939 :)
Sorry :)
It seems to me that the only way to unlock cpu - JTAG-programming. So keep patience. But If any PDF/HTML regarding JTAG and x86 CPUs from AMD fell free to ask.
For those, who forget my contacts.
ICQ 86080981 (XS People only plz.)
tin@topmods.net
thus far no luck.. Fried one mobo and one CPU.. still no luck....
Yikes :eek:Quote:
Originally Posted by nn_step
At least it's in good spirit! :toast:
how i wish there was a way like those L12 mod for XP-M cpus just dropping a piece of copper in 2 pins' holes
but i guess there's no way to unlock amd 64 :mad:
if thats true why are we all still here?Quote:
Originally Posted by |SiLA|
because we wish to unlock no matter the price..
I have two A64s left I will risk one more for the sake of unlocking but I need help....
if u see the thread is not like before it's slow :p:Quote:
Originally Posted by Acrazar
i'm going to try that ashtray way :D
way like those L12 mod for XP-M cpus
I must warn. A64 are not so simple. So if any hopes that is will be just shorting 2 contacts - it is 99% dead cpu.
nn_step, If you kill them I'm ready to get them. It's possible that their JTAG-controllers are alive, So i will get material to experiments..
ALL
I think in final (I hope I'll reach it ;)) anyone can build JTAG-addon for their rig mobos for programming CPU's. All is needed to find:
1. Do the JTAG pins on cpu connected to any trace on MB. On S940 MB they do.
1a If yes - al is needed - connect to that traces and "flash" CPU with data received and modified.
1b If no - connect pins on cpu by EXTREMELY think conductors outside socket. Then 1a :)
So...any cpu/mobo will make our dream more close to us.
I think we have 50% chance to get it real. 1 vs 2....It worth to try...
2 ALL Novice to this thread. read previous pages and only then ask you questions.
2 ALL. Keep this Thread saved on you HDD. If we get really close, it's possible that this topic will we deleted.
Just connecting to a JTAG interface isn't good enough.
I use a JTAG interface to rescue and reflash dead PDA's. But you need to know the exact specs for each PDA to be able to flash anything. Moreover there are circuits that can actually be locked and only changed if certain other registers are first addressed.
Without these specs (Which AMD isn't going to give away) there is no chance of a unlock.
However if one were to connect both a locked and a unlocked CPU to a computer via JTAG interface and do a raw read you might be able to pick something up.
However it is pretty easy to connect your PC to a CPU or other JTAG device for that matter, there are a lot of different cables on the market and a few schematics online which work pretty good.
Connecting a CPU's JTAG interface is only a very small portion, but it's a start.
People who want to unlock their CPU:
Build this cable: http://www.xilinx.com/support/programr/jtag_cable.pdf
Connect it to your CPU using the specs provided by AMD.
Then program it using the specs provided by AMD.
Voila, a unlocked CPU... the key part is 'specs provided by AMD'
They provided the pins that connect to the JTAG interface (may be live on normal CPU's, may not be. Could also be that voltage specs are different then normal specs so start low!)
Pins:
TCK - AG7 - I-IOS JTAG Clock
TMS - AG6 - I-IOS JTAG Mode Select
TRST_L - AF8 - I-IOS JTAG Reset
TDI - AJ9 - I-IOS JTAG Data Input
TDO - AG8 - O-IOS JTAG Data Output
As for enabling the JTAG interface:
"If the JTAG interface is used in a system the TMS
pin must be asserted a minimum of 10 nS before PWROK assertion and must be held in the High
state a minimum of 10 nS after the assertion of PWROK.'"
This might be disabled on consumer CPUs. You'll prolly have to do something to the DB_REQ_L and DBRDY pins as well.
I'm not novice in MCU's and other electronic stuff.
I think I have all necessary data for start playing with JTAG.
I'm currently just waiting of arrival steff's and njkid32's hardware to start.
I'm sure JTAG interface is enabled on consumer CPUs because EACH cpu is programmed when it come off from factory. And I'm sure that people - are lazy. And there is no a lot of protection regarding all this right in current K8 CPUs .
They could have simply disabled it after programming it. It isn't that hard to disable it so that it will never work unless you know exactly what you're doing.
Do - not - make - me - cry - ! ;) :slap:Quote:
Originally Posted by Thorry
Sounds very logical to me. But maybe, just maybe they haven't done that.Quote:
Originally Posted by Thorry
I would put my money on that they haven't done it.Quote:
Originally Posted by Jesus
by dead I mean the board locked up, and the cpu literally fried to a crisp.. It ruined a perfectly good 7000B zalmann..Quote:
Originally Posted by TiN_EOF
What do you mean?Quote:
Originally Posted by TiN_EOF
All i know, all cores are made equal, benched for GHz, then slapped on either a 1800 or a 3200 (in amd32bit)
in 64bit, theyre all benched and rated, then the multiplier is laser cut to ensure the lock.
Quote:
Originally Posted by Thorry
Doesn't the term "laser-cut" mean something was.. ahm.. laser cut? :eek:
not "reprogrammed"
:slapass:
Saved all ~24 or so pages. :)Quote:
Originally Posted by TiN_EOF
I saved them so they include images, gfx, etc etc.
It's like the forum on my HDD. :slobber:
If anyone needs/wants a copy...PM me.
I'm gonna also upload a copy on my USB stick, and keep it updated.
Quote:
Originally Posted by KoHaN69
if i understand correctly A64's were not laser cut, they were JTAG programed, FID is a firmware thing now, not pure hardware
Umm...Quote:
Originally Posted by KoHaN69
Where are those laser cut bridges/connections that ensure the lock?
There's no bridges at all on S939 OuPGA package.
I know begin to attempt unlocking my 3000+Winchester..
I post the results when I get done...
*crosses fingers*
In the ..core? :confused:Quote:
Originally Posted by largon
I just registered to this forum just for this article, i have read the whole thread its very exciting!!!
I hope you guys figure out how to unlock this baby, im planning on getting one!!
has there been any progress?
well cograts to Pris!