Monday, February 23rd 2009

Phenom II X3 Can be Unlocked to Phenom II X4?

It is a well-known fact that AMD has been carving out triple-core and dual-core Phenom/Phenom II series processors out of complete Agena/Deneb dice with one or two cores disabled. In a fresh revelation, a Korean enthusiast claims to have discovered that it is rather easy to unlock the disabled core on Phenom II X3 processors, provided the motherboard supports the Advanced Clock Calibration (ACC) feature that is meant to enhance overclocking using AMD's Overdrive software. The enthusiast claims the soft-mod to have worked in his/her case, where a Phenom II X3 710 was paired with a Biostar TA790GX 128M motherboard. The CPU was overclocked to 3.12 GHz, with a vCore setting of 1.37 V.

The method employed: Set the appropriate BIOS setting for the Advanced Clock Calibration feature to "Auto", save settings and restart. The system will be able to deal with the disabled core, and off load some work to it. The processor with the "additional" core was tested to be Prime95 stable and was able to boost 3DMark06 CPU score by as much as 1,000 points. Let the screenshots below speak for themselves:
The method:
The Result:

Sources:Playwares, VR-Zone
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99 Comments on Phenom II X3 Can be Unlocked to Phenom II X4?

#1
VulkanBros
ShadowFold said:
Hey, I have a laptop :p If it doesn't post with the modded CPUID, I have a Semperon in my server, a 4200+ sitting next to me, a PII 920 in my HTPC(my dad might kill me if he notices it's gone lol) and my mom has a 4200+ X2 in her rig too.
I don´t want to see your electrical bill .. hehe
Posted on Reply
#2
MilkyWay
TheMailMan78 should give it a rest with his big gob. Well im going to be getting one of these cpu so if i get some extra performance with a half ass core then cool.
Posted on Reply
#3
1Kurgan1
The Knife in your Back
Interesting, I been planning on getting a 720, this would be a nice little bonus!
Posted on Reply
#4
cdawall
where the hell are my stars
newtekie1 said:
Interesting, he does it on an 720 in the video, the original is about a 710. I wonder if these are engineering samples though? Do AMD engineering samples identify themselves as engeneering samples in CPU-z? Another thing, why does he keep turning the machine completely off and then back on after saving the BIOS? Makes me wonder if he doesn't just have two machines next to eachother in the video and just switches between them to trick us into thinking he is using the same CPU.

If someone at TPU or a legit source confirms this, I'll definitely be picking up a Phenom II rig in the near future.:rockout:
yes they do they say AMD ES chip
Posted on Reply
#5
Unregistered
Ok, so I watched the video. All I can say is :wtf: , so if I would get same hardware as he does, think I could do the same, or is it just pure luck (getting an X3 unlocked to a stable X4)?

And to the Korean guy :toast:
That's cool.




EDIT: I watched all the videos, and couldn't not notice that it said "X3" and showed 4 cores..
I think this is the real deal.
Posted on Edit | Reply
#7
SeanG
Why would you bother buying a 3 core cpu when theres probably something wrong with that 4th core and it isnt much cheaper than a real 4 core?Just cause he says he can do it doesnt mean you should go out and waste money and buy one.
Posted on Reply
#8
Azaloum90
i never said that... it may not be smart to do it, thats only logical. but that doesn't null the fact that you can do it
Posted on Reply
#9
Flyordie
cdawall said:
several people have messed had a 4th core show up after failed oc's.


its already well known that these chips are not laser cut just hardware locked
Yes, and how long have I been saying that? lolz.

btw- there may be nothing wrong with the 4th core. Maybe it just didn't pass QC (as they clock these up to 3.6Ghz on 1.5V on routine tests).
Posted on Reply
#10
newtekie1
Semi-Retired Folder
SeanG said:
Why would you bother buying a 3 core cpu when theres probably something wrong with that 4th core and it isnt much cheaper than a real 4 core?Just cause he says he can do it doesnt mean you should go out and waste money and buy one.
Because that is the type of people we are. Remember, this whole site was essentially founding on the idea of unlocking pipelines in video cards in hopes that they aren't damaged. Turning 9500's into 9700's, turning 9800SE's into 9800Pro's, turning x800GTO's into x800XT's. It is this type of thing we live for. We love it when you can get take something cheap and make it perform like something expensive.

And it is much cheaper. If you unlock a 720BE, it essentially becomes a 920BE, which is about $50 more(for a standard 920, not a BE).

And you aren't wasting money, worst case is that it doesn't work, and then you still get what you paid for.
Posted on Reply
#11
TheMailMan78
Big Member
MilkyWay said:
TheMailMan78 should give it a rest with his big gob.
WTF does that mean? :wtf:
Posted on Reply
#12
DrPepper
The Doctor is in the house
gob means mouth in scotland.
Posted on Reply
#13
TheMailMan78
Big Member
DrPepper said:
gob means mouth in scotland.
Well that isn't a very nice thing to say. Why the negativity MilkyWay?
Posted on Reply
#14
suraswami
newtekie1 said:
Because that is the type of people we are. Remember, this whole site was essentially founding on the idea of unlocking pipelines in video cards in hopes that they aren't damaged. Turning 9500's into 9700's, turning 9800SE's into 9800Pro's, turning x800GTO's into x800XT's. It is this type of thing we live for. We love it when you can get take something cheap and make it perform like something expensive.

And it is much cheaper. If you unlock a 720BE, it essentially becomes a 920BE, which is about $50 more(for a standard 920, not a BE).

And you aren't wasting money, worst case is that it doesn't work, and then you still get what you paid for.
If this is true, I hope the 4th core is just a lazy core, so if I were to grab one of these, I would overclock from AOD only those 3 known cores and keep the 4th at default or whatever lazy speed it likes to (to find which core is bad I would have to do the round robin thing). The 4th core will be used to running background things, like virus scanning, print server, file sharing, virtual machine etc.
Posted on Reply
#15
btarunr
Editor & Senior Moderator
Peace. I've updated the pictures (screenshot extracts) to their actual resolution.
Posted on Reply
#16
ShadowFold
Anyone with a SB600 mobo want to send me their 710/720 to see if this works :D I'll give it back I promise!
Posted on Reply
#17
DRDNA
TheMailMan78 said:
Well that isn't a very nice thing to say. Why the negativity MilkyWay?
When this happens to me I always ignore that behavior and never feed into it ...maybe a JK maybe not but I never ever reply to negative statements even if they say "what are you stupid?"So be one up and just ignore it.Probably in reference to your avator though.
Posted on Reply
#18
1Kurgan1
The Knife in your Back
SeanG said:
Why would you bother buying a 3 core cpu when theres probably something wrong with that 4th core and it isnt much cheaper than a real 4 core?Just cause he says he can do it doesnt mean you should go out and waste money and buy one.
Because AMD is awesome and allows us to clock each core the way we want it. Most apps only use 2 cores and those extra 2 cores go to things like WMP (they don't need to be crazy fast). So if you pick up an extra core, even if you have to down clock it, for absolutely nothing (I mean money wise) then why wouldn't you?

And the $119 for a 710 vs the $190 for a 920 is a pretty huge difference in price. Now your saying, "the 710 wouldn't be a 920!!!". Ok your right it would be a 910 because it runs at 2.6Ghz compared to 2.8Ghz. I compare it to that because you can't call it the 8x0 because it has more cache/

So in the end, thats why you would do it, and no matter how slow that extra core runs at, it is free. And anything free is good (or at least better than paying money for the samething). :rockout:
Posted on Reply
#19
servermonkey
btarunr said:
I was thinking the same, also that ACC setting in the BIOS setup should be "Auto" by default, right?
on my 9859, disabled, was default
on my 940, disabled, was default

it does funny stuff when it is on my 940 even w/ the asus m3a79t-dlx new bios 0703...
Posted on Reply
#20
SeanG
1Kurgan1 said:
Because AMD is awesome and allows us to clock each core the way we want it. Most apps only use 2 cores and those extra 2 cores go to things like WMP (they don't need to be crazy fast). So if you pick up an extra core, even if you have to down clock it, for absolutely nothing (I mean money wise) then why wouldn't you?

And the $119 for a 710 vs the $190 for a 920 is a pretty huge difference in price. Now your saying, "the 710 wouldn't be a 920!!!". Ok your right it would be a 910 because it runs at 2.6Ghz compared to 2.8Ghz. I compare it to that because you can't call it the 8x0 because it has more cache/

So in the end, thats why you would do it, and no matter how slow that extra core runs at, it is free. And anything free is good (or at least better than paying money for the samething). :rockout:
The fact is you would still be running a broken 4 core cpu because thats why amd disabled it in the first place.So why bother?
Posted on Reply
#21
PP Mguire
I :laugh: at how many people dont really get the point of why this is so awesome. Maybe its just us old skool guys that come to realize why its so great.
Posted on Reply
#23
DrPepper
The Doctor is in the house
PP Mguire said:
I :laugh: at how many people dont really get the point of why this is so awesome. Maybe its just us old skool guys that come to realize why its so great.
I remember my X850pro could have the pipes unlocked but I was too much noob to do it :laugh: and my sempron could have its cache unlocked with a pencil mod as well or maybe it was more voltage.
Posted on Reply
#24
SeanG
newtekie1 said:
Because that is the type of people we are. Remember, this whole site was essentially founding on the idea of unlocking pipelines in video cards in hopes that they aren't damaged. Turning 9500's into 9700's, turning 9800SE's into 9800Pro's, turning x800GTO's into x800XT's. It is this type of thing we live for. We love it when you can get take something cheap and make it perform like something expensive.

And it is much cheaper. If you unlock a 720BE, it essentially becomes a 920BE, which is about $50 more(for a standard 920, not a BE).

And you aren't wasting money, worst case is that it doesn't work, and then you still get what you paid for.
Theres a big difference between unlocking a vid card that was disabled and will run better and unlocking a core on a cpu that was disabled cause it wasnt running right in the first place.If it was going to run right AMD would of sold it to you as a quad core and made $80 more.:cool:
Posted on Reply
#25
HossHuge
newtekie1 said:
Because that is the type of people we are. Remember, this whole site was essentially founding on the idea of unlocking pipelines in video cards in hopes that they aren't damaged. Turning 9500's into 9700's, turning 9800SE's into 9800Pro's, turning x800GTO's into x800XT's. It is this type of thing we live for. We love it when you can get take something cheap and make it perform like something expensive.

And it is much cheaper. If you unlock a 720BE, it essentially becomes a 920BE, which is about $50 more(for a standard 920, not a BE).

And you aren't wasting money, worst case is that it doesn't work, and then you still get what you paid for.
"Here Here!".
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