Will someone test this thing?
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Will someone test this thing?
too bad loose 939 sockets are BGA.. (?) would be nice if you could mod one and just put it in between the cpu and the socket on the mainboard. kinda like that dothan/p4 adapter.
It is still very likely that we can identify the register holding the multiplier by comparing all the registers from a 3000+ and a 3200+ from precisely the same stepping/week.
If so, we wouldn't know how to tell it to unlock, but we can write a speculative value to set the limit to 20 or whatever.
TIN_EOF will shortly, if he has any luck without blowing everything up I'll test it myself.Quote:
Originally Posted by MonkSP
Then I'll post a guide on how to help.
There are such devices, however I don't see how this would help. It's very easy to pop open the socket and solder some wires. I've been doing that since socket 370. Also when we've found the correct methode (which is a very slim chance) I'll post how to do it, it will not be hard.Quote:
Originally Posted by Gogar
I already posted what register holds the multiplier and voltage, there is also a lot of software able to change it. The stepping and week has nothing to do with this.Quote:
Originally Posted by Martin Cracauer
As stated before it is not possible to unlock a cpu using the MSR registers or software publicly available today.
Please keep this thread clean, only post if you've read the thread (all of it) and/or are experimenting (and have made some progress).
Please let me know if anybody has hooked up their JTAG cable to the TCK pin, I believe there is a big chance this will kill the chip and/or the cable/attached system. If somebody has attached it and gotten a response please let me know, I'll hook up my system and start the tests.
Hi Thorry ! Can you tell us "how to safely test this" ? Is it possible to read those BITS out without screw up the data in those register ? Thank you very much !Quote:
Originally Posted by Thorry
I had read your posts in this thread , and I still very interesting about this JTAG interface . Many thanks to you for the information for JTAG !
PS: Sorry for my bad english ..
How to do this as safe as possible:Quote:
Originally Posted by mola
- Use USB->LPT cable
- Connect to CPU with specs I provided
- Write software (use open source JTAG interface software for linux)
- Keep TMS high when powering on CPU
- Write random values to JTAG registers
- Read JTAG response
- Read JTAG response again, value changed = not good
- Write random values to JTAG registers
- Read JTAG response, same as previous value = not good
- Read JTAG response, same as previous read (and thus different from previous value) = good
If at any of these steps everything explodes or something is not working please let me know. Be sure to check for shorts in the meantime.
Do this at your own risk, you risk destroying your PC, cable, the test CPU and motherboard.
Note: This is just one small step in getting unlocked CPUs, much more needs to be done (if possible at all)
Or you could buy it at Fry's/BestBuy, if it dies return it.Quote:
Originally Posted by Thorry
I don't believe in ethics much, besides it's all for the cause of OCing... :toast:
AND ON ANOTHER NOTE,
Why make a jtag interface?
Is it not possible to use a dual-cpu motherboard?
Running off one processor and using jtag software to F around with the other?
:stick:
As I said, I'm not like that. Also we don't have any of those stores around here.Quote:
Originally Posted by KoHaN69
On the other note:
The JTAG pins aren't connected to the motherboard in any way.
Also if they were and we were able to unlock 940 CPUs chances are 939 and 754 CPUs don't work in the same way so we'll be screwed.
I see... i thought jtag is thru pins, but hmm...
*stares at the matrix code for inspiration*
So what about them voltages? underclocking, changing multis /voltage, undervolting, overvolting
any1 tried that?
Kohan, I think you are reaching a bit.
Just wait until people have started working with the JTAG interface. This will prolly not yield a unlock key, but it just might.
People have been trying to unlock Intel chips for years and nobody has ever been succesfull. This is prolly due to Intel frying a connection after programming, this is once been said by somebody working at Intel manufacturing and it seemed to be true.
It is very likely AMD has done the same. It's likely there was a error in one batch yielding unlocked CPUs in certain conditions. If this is the case there are only 200 CPUs max worldwide that can potentially be unlocked and only 3 or 4 that actually will become unlocked.
So don't expect there to be something magic allowing for unlocks. The JTAG interface might just do the trick, but it's a long shot at best.
Also once we've unlock one Venice core for example it's not sure we'll be able to unlock other cores. Or when we've unlocked a 939 cpu we might not be able to unlock 754 cpus.
So just hang tight and don't start reaching for crazy unlocking methods. I've seen and done a lot of torturing to CPUs and never seen one get unlocked so it's not likely torturing will unlock CPUs.
OK.
An Earlier Post mentioned, that on an MSI board, the MSI overclcking utility accadently unlocked multis.
One person had a glitch in the prog (it wasnt really unlocked, so they thought)
ANother person checked with cpuz and it was unlocked thru msi unlocking utility, but that glitch didnt occur again after restart.
Therefore, combine that with CnQ, I'm firmly sticking to my Softmoding Venice Theory
KoHaN69: Just because an application displays the different multis doesn't mean that they're usable.
I think he understands that, he mentioned the MSI CoreCenter glitch.Quote:
Originally Posted by Warship
you make me arghQuote:
Originally Posted by KoHaN69
Sorry, my bad.
A core center glitch? No way! I was running strait liquid hydrogen.. :rofl:
http://home.comcast.net/~aicjofs/corecenter.jpg
Idd, I wouldn't put my faith in software. If software craps up the registers other programs will read incorrect values as well. Verifying via CPUZ doesn't do much either, if I'm running core center my CPUZ always gives off strange readings and cannot give me any info about my memory.
Everybody knows core center is p00p
Quote:
Originally Posted by aicjofs
:clap:
This is a big *if* but *if* I can, I have some old crappy OCing S939 CPUs lying around somewhere that work... albeit not awesomely.
I would be glad to give them up as beaters...
I had a 3500+ Venice for RMA because she were not stable at all.
It's a 0517 E3 Stepping. She came back and now it's a E6.
The Testdocument tells me that they have overworked the Cpu.
njkid32 !
Today I received your mobos.
Thanks A LOT. I begin to work.
JTAG TCK on my CPU is not shorted with GND.
One of njkid32's mobo powering up CPU as needed, it's enough to start trying.
Good I am glad you got it. You can also thank Mrslinky as well. Now I dont know if that mobo is really dead but its missing a few little ic's around the socket. I just hope that you can figure this thing out. NOW, I am getting one of the unlocked venice's so TiN_EOF get in touch with me! On aim at njkidzona or msn njkid31.Quote:
Originally Posted by TiN_EOF
Yes, NJKid is getting my unlocked Venice which I just got back.
Also, the board I was using when my Venice became unlocked (resulting in the RMA of the board) is coming back to me after being serviced (I assume serviced) by AOpen. According to the AOpen website, the board they are sending me has the same S/N as the one I sent to them. I should have it on the 23rd. I have no idea what to do with it since I already have a new board. I guess I might ebay it.
rock on
Why have you got your Venice back? Have they refused your RMA? :eek:Quote:
Originally Posted by Clocker