Phenom II x3 710 run with 4 core!

[ldl2111]

CPU : AMD phenom2-X3 heka 710 AM3( 13 X270) @ 3.12G

volt:

CPU : 1.37v(Default : 1.325v)
NB : 1.2v(Default : 1.2v)
HT : 1.2v(Default : 1.2v)
etc: AUTO

Cooler : zalman 9900LED

RAM : EK DDR2 PC6400 2G X 2

VGA : GTX260(216)

MainBoard : Biostar TA790GX 128M

POWER : OCZ 700W

O/S : Window XP SP3




cpu= 710, 720be both ok

board= amd 790gx + sb750(acc;Advanced Clock Calibration)

Go to BIOS, modify Advance Clock Calibration to Auto

that's all
now save the BIOS, restart and wait to see the magic...

issue in Korean hardware sites


AMD peneom II-X3 heka 710 AM3 -> 4 cores active?? Part 2

more informations

vr-zone.com

interview with AMD KOREA director.

 

[thilanliyan]

Was just about to post this...pretty cool if true.

 

[Flipped Gazelle]

Originally posted by: ldl2111
CPU : AMD phenom2-X3 heka 710 AM3( 13 X270) @ 3.12G

volt:

CPU : 1.37v(Default : 1.325v)
NB : 1.2v(Default : 1.2v)
HT : 1.2v(Default : 1.2v)
etc: AUTO

cpu= 710, 720be both ok

board= amd 790gx + sb750(acc;Advanced Clock Calibration)

Go to BIOS, modify Advance Clock Calibration to Auto

that's all
now save the BIOS, restart and wait to see the magic...

issue in Korean hardware sites

more informations

vr-zone.com

Most likely a BIOS hiccup. <--- Boy, was I wrong!

Pretty wild if true, though. Running a damaged core...

 

[n7]

Sweet

 

[eternalone]

Yep looks like I might just get one of these AM3 x3/x4 at $119 nice. They need to do more tests does this trick also work on the AM2 + x3 if so that would be awesome. Also could you check if I can download a core off Ebay???

 

[Flipped Gazelle]

Can't believe I'm about to do this... there's a discussion about this @ Tom's Hardware.

http://www.tomshardware.com/fo...e-3core-4core-phenomii

 

[error8]

Originally posted by: Flipped Gazelle


Pretty wild if true, though. Running a damaged core...

How do you know it's damaged? It might be a perfectly functional core. I don't think that AMD makes X3s just from defective quads. They probably also use healthy quads with one core deactivated.

 

[MBrown]

ROFL. If this is real, doesn't AMD know that we enthusiasts would find this out sooner or later?

 

[error8]

They'll probably release a fast new bios for all motherboards. But who's stupid enough to flash it?

 

[Idontcare]

Originally posted by: error8

Originally posted by: Flipped Gazelle


Pretty wild if true, though. Running a damaged core...

How do you know it's damaged? It might be a perfectly functional core. I don't think that AMD makes X3s just from defective quads. They probably also use healthy quads with one core deactivated.

That's not the point, the point is a non-zero percentage of X3's are in fact harvested X4's with dysfunctional cores. Not all damaged cores are going to give you an obvious system crash or instability, pentium FDIV bug for example.

There will be those incipient errors that slowly accumulate and creep into all your files (defrag touches them all eventually) and you start pulling your hair out over the "file damaged, cannot be read, CRC invalid, etc" alerts.

So simply enabling a core and claiming "w00t! she's p95 stable" does not mean your spreadsheets aren't about to become fubar, or your files of family photos getting corrupted as they are written to the hdrive, etc.

The caveats are no different than for your regular overclocking enthusiasts, but enabling what can very well be a walking wounded core just seems like extraordinary level of risk taking.

I'm definitely going to let you all go first on this one, if in 6 months we don't start seeing a rash of new threads from people with post count = 5 all claiming "why is my hard-drive killing all my files? Do I have a bad seagate, I have an X3 with 4 cores enabled if it matters that you know this..." then I'll become intrigued. Until then this just sounds like a BAD idea...

 

[MarcVenice]

Idontcare, what makes you so sure the X3's fourth core is dysfunctional? Do you work for AMD? Did they tell you in a official statement the fourth core was gone bad, so they made it an x3, instead of an x4?

I'm not sure, maybe you're right, but this can't be compared to overclocking. There's thousands of ppl who overclock, and I've never heard any horror story's about corrupted files. That would mean that a orthos prime test is a bad way of measuring the core's stability or instability. Coz orthos prima, intels burn test etc seem to be working just fine in determining your overclocks stability.

 

[Zstream]

Originally posted by: MarcVenice
Idontcare, what makes you so sure the X3's fourth core is dysfunctional? Do you work for AMD? Did they tell you in a official statement the fourth core was gone bad, so they made it an x3, instead of an x4?

I'm not sure, maybe you're right, but this can't be compared to overclocking. There's thousands of ppl who overclock, and I've never heard any horror story's about corrupted files. That would mean that a orthos prime test is a bad way of measuring the core's stability or instability. Coz orthos prima, intels burn test etc seem to be working just fine in determining your overclocks stability.

He doesn't know. Just him making smoke as usual.

 

[Idontcare]

Originally posted by: Zstream

Originally posted by: MarcVenice
Idontcare, what makes you so sure the X3's fourth core is dysfunctional? Do you work for AMD? Did they tell you in a official statement the fourth core was gone bad, so they made it an x3, instead of an x4?

I'm not sure, maybe you're right, but this can't be compared to overclocking. There's thousands of ppl who overclock, and I've never heard any horror story's about corrupted files. That would mean that a orthos prime test is a bad way of measuring the core's stability or instability. Coz orthos prima, intels burn test etc seem to be working just fine in determining your overclocks stability.

He doesn't know. Just him making smoke as usual.

I'm not sure what either one of you think you or I are talking about here, so feel free to elaborate on your questions/statements regarding the contents of my post if you are actually interested in my response on the topic.

Otherwise continue on with your leveling half-hearted implications that I am clueless about these aspects of technologies. Wouldn't want anyone to start acting out of character around here, we all got established reputations to maintain...

 

[SlowSpyder]

Originally posted by: MBrown
ROFL. If this is real, doesn't AMD know that we enthusiasts would find this out sooner or later?

You almost have to wonder if it was planned on AMD's part. Put a few fully functioning x4's in retail labeled as x3's to get some buzz going, than lots of people try to get an ultra cheap quad.

 

[JackyP]

Originally posted by: Zstream

He doesn't know. Just him making smoke as usual.

Wow. That's pretty insulting. IDC's comments are the only reason I regularly visit this board and I've never seen him make an unreasonable statement.

MarcVenice, one could ask "what makes you sure they are functional"? I believe there are parts of the core which are not stressed by prime, those could be faulty.

 

[SunnyD]

This may put some credibility into the guy that had the Kuma that unlocked magically a couple times into a quad a couple weeks ago.

 

[Idontcare]

Originally posted by: SunnyD
This may put some credibility into the guy that had the Kuma that unlocked magically a couple times into a quad a couple weeks ago.

Ah yes, I thought the same thing when I saw this thread too.

You are referring to dingleberrydorkbutt in Topic Title: WTF! Is my 7750 actually a phenom?.

His chip turned out to be an ES, so not entirely implausible for it to be a fully functioning quad-core that's been micro-code castrated into acting like its a tri-core.

It will become more and more interesting if retail X3's are also castrated at the microcode level as that is directly hackable if the right talent gets involved.

 

[SunnyD]

Originally posted by: Idontcare

Originally posted by: SunnyD
This may put some credibility into the guy that had the Kuma that unlocked magically a couple times into a quad a couple weeks ago.

Ah yes, I thought the same thing when I saw this thread too.

You are referring to dingleberrydorkbutt in Topic Title: WTF! Is my 7750 actually a phenom?.

His chip turned out to be an ES, so not entirely implausible for it to be a fully functioning quad-core that's been micro-code castrated into acting like its a tri-core.

It will become more and more interesting if retail X3's are also castrated at the microcode level as that is directly hackable if the right talent gets involved.

To be honest - I don't see why AMD wouldn't want to do this. At first glance one would say that it would cannibalize high end sales... but when you stop to think that odds are the disabled core didn't pass validation at the factory and thus was disabled that way, allowing end-users "use at your own risk" similar to the TLB errata sounds like a good way to generate buzz. That core may not clock past 2.6GHz... so what? If there's something a bit more dangerous, well the user has been warned. It might hit high end sales a bit, but when people are out there looking for something rock solid, they'll still buy a validated part.

As far as the microcode level disabling, according to one of the links there was also a difference in power usage. Sounds like a full disabling of a core - which as far as I know doesn't happen on AM2+ platforms.

Either way, I'll stick with my X4. I may pick up an X3 for a HTPC though...

 

[VirtualLarry]

TBH, this news makes me NOT want to buy an X3. If a core is disabled at the factory, there must be a good reason for it, and I do NOT, under any circumstances, want user mobo settings to "accidentally" re-enable it.

I'm with IDC here.

 

[Idontcare]

Originally posted by: SunnyD
As far as the microcode level disabling, according to one of the links there was also a difference in power usage. Sounds like a full disabling of a core - which as far as I know doesn't happen on AM2+ platforms.

I thought the reason Intel made such a big deal about their powergate xtors, and the reason why 65nm X3's don't show marked power reduction over their X4 brethren, is because you can't just "shutoff" power to those somewhat leaky transistors in the disabled core.

You can fuse off their being considered functional chips, but if the Vcc to the die is 1.4V then all four cores (including the disabled one) gets Vcc applied to those xtors and static leakage power consumption ensues.

This was Intel's argument for why the power-gate xtors combined with their PCU was the only effective means of shutting power off at the core-level for power-savings.

I haven't read the report you are referencing, I'll take your word on it that they did see some level of power-reduction, but can you shed some light here as to how/why the AMD X3 chips are able to do this? Did they implement some manner of powergate into their 45nm architecture and not make a big deal of it or some such?

 

[Flipped Gazelle]

Originally posted by: error8

Originally posted by: Flipped Gazelle


Pretty wild if true, though. Running a damaged core...

How do you know it's damaged? It might be a perfectly functional core. I don't think that AMD makes X3s just from defective quads. They probably also use healthy quads with one core deactivated.

I don't know if the disabled core is damaged. But why cripple what would otherwise be a perfectly good X4 915/925?

There's been plenty of discussion about X3's across the 'net, and many folks have assumed that X3 came about because of problems with yields... but maybe that was hasty. After all, PhII-based X3's are AM3 parts, and there aren't any X4 925's yet.

 

[error8]

Originally posted by: Flipped Gazelle

Originally posted by: error8

Originally posted by: Flipped Gazelle


Pretty wild if true, though. Running a damaged core...

How do you know it's damaged? It might be a perfectly functional core. I don't think that AMD makes X3s just from defective quads. They probably also use healthy quads with one core deactivated.

I don't know if the disabled core is damaged. But why cripple what would otherwise be a perfectly good X4 915/925?

Well, I'm thinking that maybe the market need for X3 cpus can be rather large and so AMD could be crippling perfectly healthy X4s, just to cover that need. I don't think that AMD manages to create the perfect number of X3s, just by using defective X4s. They would probably need to cripple healthy X4s to keep up with the demand.

 

[RallyMaster]

This is....very interesting.

 

[Flipped Gazelle]

Originally posted by: error8

Originally posted by: Flipped Gazelle

Originally posted by: error8

Originally posted by: Flipped Gazelle


Pretty wild if true, though. Running a damaged core...

How do you know it's damaged? It might be a perfectly functional core. I don't think that AMD makes X3s just from defective quads. They probably also use healthy quads with one core deactivated.

I don't know if the disabled core is damaged. But why cripple what would otherwise be a perfectly good X4 915/925?

Well, I'm thinking that maybe the market need for X3 cpus can be rather large and so AMD could be crippling perfectly healthy X4s, just to cover that need. I don't think that AMD manages to create the perfect number of X3s, just by using defective X4s. They would probably need to cripple healthy X4s to keep up with the demand.

What demand? This is AMD we're talking about!

I wonder why the 1st AM3 PhII's are X3's (1 fewer core) and X4 810 (less L3 cache).

 

[Lifixs]

So is this only one certain individual chips sent to asia specifically?