Phenom II x3 710 run with 4 core!

**vietthanhpro** · 02-22-2009, 11:17 PM

Mobo: Biostar TA790GX (they said you can use any 790GX + SB700 mobo to unlock)
Go to BIOS, modify Advance Clock Calibration to Auto
that's all
now save the BIOS, restart and wait to see the magic...

Source:http://vozforums.com/showpost.php?p=2501119&postcount=1

**003** · 02-22-2009, 11:20 PM

Awful CPU score there...

**Bobsama** · 02-23-2009, 12:00 AM

Looks interesting. My budget asks if I have $220-230 to spare.

**saaya** · 02-23-2009, 12:51 AM

acc unlocks extra cores?
not bad... but... doesnt really boost performance, does it?

**Shintai** · 02-23-2009, 01:13 AM

Unlocking cores that have been disabled sound like a very risky thing. I dont think AMD disabled them for fun...

Abit odd they aint lasercut or something tho.

**Newblar** · 02-23-2009, 01:14 AM

how is this remotely possible??
i thought the disabled core was defective?

**Macadamia** · 02-23-2009, 01:15 AM

FFS this is a 125USD chip.

I'm probably gonna get one and a 790GX board to play with such fun stuff. Aww.

**Shintai** · 02-23-2009, 01:22 AM

Originally Posted by Newblar

how is this remotely possible??
i thought the disabled core was defective?

It might be or not be. if it is you gonna end up with alot of garbage data over time or just BSOD etc.

**Macadamia** · 02-23-2009, 01:24 AM

Originally Posted by Shintai

It might be or not be. if it is you gonna end up with alot of garbage data over time or just BSOD etc.

Err... these cores are not laser cut/fuseblown.

They are probably worse binned proper Deneb X4s that did not meet the 125W certification, and hence programmed soft to work as 3. Hence the almost similar power usage (the X3s with 4 cores would use extra power on top on that).

Keep it cool and nothing major should happen.

**FlanK3r** · 02-23-2009, 01:28 AM

WTF? Its really possible

?never seen it before.

**~~Katanai~~** · 02-23-2009, 01:54 AM

I dunno. It all depends on how well the x3's are selling. If there is high demand for them there could be ones with perfectly good 4th core out there but usually the 4th core should be defective or at least unstable.

**Humminn55** · 02-23-2009, 02:21 AM

Originally Posted by FlanK3r

WTF? Its really possible

?never seen it before.

Why not? I don't imagine AMD is having that many quad-core Phenom II's crap out on one core to be able to supply the volume of tri-core cpus that are being sold.....they are quite inexpensive compared to the full quad-core cpus and appear to be selling pretty well.

So, AMD is probably pulling weaker PII's out, ones that would "just pass" qualification, and labeling them tri-core, in addition to using the "failed core" chips that started the whole tri-core thing.

**mAJORD** · 02-23-2009, 02:48 AM

lol. wow

can't wait to try this one ;D

**Slovnaft** · 02-23-2009, 03:01 AM

howabout comparing wprimes.

**Mul** · 02-23-2009, 03:13 AM

Very interesting.

Is it Prime stable at 2.6GHz with all four cores?

**Frananta** · 02-23-2009, 03:20 AM

Now that's magic

**Bo_Fox** · 02-23-2009, 03:41 AM

Wow.. unlocking CPU cores--now that's new for me! I remember when the 6800 could be unlocked into a 6800GT with full 16 pipelines (now called TMU's). That was pretty much the last popular "unlockable", right? Oh yeah, and unlocking SLI on DFI NF4 Ultra-D motherboards...

**MAS** · 02-23-2009, 03:53 AM

where did owner buy the cpu?

**ToTTenTranz** · 02-23-2009, 04:16 AM

Any first-hand witness besides the original news poster?

**CraptacularOne** · 02-23-2009, 05:24 AM

Originally Posted by Newblar

how is this remotely possible??
i thought the disabled core was defective?

This sounds similar to when the 6800 series Nvicia cards were around. When Nvidia disabled 4 pixel pipes on the core to arrive at 12 on the vanilla version while the GT and Ultra had 16 pipes. Remember all the hoopla that surrounded the vanilla when it was discovered you can re-enable the other 4 pipes for more performance?

Now of course there was a chance that if you enabled the other 4 pipes it would cause the card to artifact or behave abnormally, but there were a lot of them that operated just fine after the 4 pipes were unlocked.

**cliffy** · 02-23-2009, 05:26 AM

A user over at OCUK has done this although even at 1Ghz couldn't get all 4 cores prime stable

http://forums.overclockers.co.uk/sho...php?t=17977875

**G0ldBr1ck** · 02-23-2009, 05:26 AM

Originally Posted by ToTTenTranz

Any first-hand witness besides the original news poster?

Its real, there have been many others to do this allready. It seems some of them wont pass Prime95 at default speeds tho.

**Shintai** · 02-23-2009, 05:33 AM

Originally Posted by cliffy

A user over at OCUK has done this although even at 1Ghz couldn't get all 4 cores prime stable

http://forums.overclockers.co.uk/sho...php?t=17977875

This is the biggest concern. Since the unlocked core is really defect instead of just failing some power profile.

Also the BIOS unlock seems to be a bug rather than feature. So I would expect it to be closed in future revisions.

**Lightman** · 02-23-2009, 06:29 AM

Originally Posted by Shintai

This is the biggest concern. Since the unlocked core is really defect instead of just failing some power profile.

Also the BIOS unlock seems to be a bug rather than feature. So I would expect it to be closed in future revisions.

Still you have the chance to stay on older BIOS and be lucky to find stable enough X3 4core CPU. It will be a game like in good old times with R300 chips. Some of them were really defective, most of them were simply downgraded to Radeon 9500!

Now if they decide to fix that BIOS bug we need a good hacker to unlock this feature in newer BIOSes

.

**Frank M** · 02-23-2009, 06:37 AM

this is great

Brings back memories of gfx card soft pipe-unlocking

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