unlocking 4th core

[iandh]

Relax killer it was not a personal attack against you or anyone else in this thread! I am merely stating the obvious

I didn't really take it personally, but like I said, if it is a good core, and unlockable, why not?

I know that a good portion of 720's are probably 945's that didn't meet spec, but it seems that at least some are 945's that did and have a core disabled. I think that 0904 was a really exceptional batch because of how many are getting successful unlocks and good OC's.

[shaolin95]

The new official gigabyte Bios unlocked my 4th core! Sweet not time to check if its a good one. :-)

[charged3800z24]

The new official gigabyte Bios unlocked my 4th core! Sweet not time to check if its a good one. :-)

so you using F3b? Glad to see you got it going. let us know how it goes

[shaolin95]

Yes I tried that one because I wanted to give it a shot at unlocking the 4th core.
BTW OCCT doesnt show the forth core but it does use them all. It doesnt show temperature now either.

[i found nemo]

Yes but Even "Cheap Crap" as you put it does not have a Performance level when its Broke

tell that to the guy who made this thread. it's all a roll of the dice, just like overclocking.

besides

124 for 710

or

169 for 810

only like 45 bux differance, but it's more of an experience to overclock when you get something free. even if you don't get the extra core. who cares? x3 overclocked is still a decently powered cput anyways. x3 is targeted for ppl on a budget to begin with, so it's win win wether or not you get 4th core or not.

[shaolin95]

4th core is a success for me...3.6Ghz at 1.39v OCCT 1 hour stable! sweet :-)

[DPGX]

I envy you guys mine wont boot into Windows when i enable acc. tried underclocking, changing acc %, voltage, no go.

[charged3800z24]

I envy you guys mine wont boot into Windows when i enable acc. tried underclocking, changing acc %, voltage, no go.

Which board/bios you using? Mine didn't boot with ACC or enable forth core with any bios except F3b on the MA790FXT-UD5P. May be there is hope.

[shaolin95]

Well this is odd. Xp Sp3 ran perfectly with the 4th core at 3.6 but Vista 64 wont load...not even on Safe mode.
If I try to load it all I see is the loading bar and stays there forever.
I tried disabling the ACC but with this bios even when disabled the 4th core still shows.
Any ideas on why XP Sp3 is stable yet I cant log into Vista 64?

[iandh]

Well this is odd. Xp Sp3 ran perfectly with the 4th core at 3.6 but Vista 64 wont load...not even on Safe mode.
If I try to load it all I see is the loading bar and stays there forever.
I tried disabling the ACC but with this bios even when disabled the 4th core still shows.
Any ideas on why XP Sp3 is stable yet I cant log into Vista 64?

Yeah not all chips seem to be 100%.

I "lucked out" with a good one, unfortunately the f3b bios has the same S3 sleep issue that f3 had for me, whether 4th core is enabled or not. f4d does not have the problem, so I'll be sticking with that for the time being.

If I ever find an application in the future where the 4th core really counts I am keeping f3b on deck just in case.

[shaolin95]

Its just odd, there got to be another issue here cause a core cant pass OCCT on XP and then not load Vista 64. I mean, I have been able to boot into Vista 64 at 3.9 at setting that didnt last 1 minute in OCCT! :-)

[chew*]

bingo has been stating all along that 64 bit is a lot harsher than 32 bit, I trust his info.

[PaganII]

Another 4 core 720BE on F3b bios, 0904EPMW, XP SP3, 2 x 2Gb Patriot 1600LLK, MA790FXT-UD5P, HIS 4870 1Gb.
Ran 3D'06 fine. More testing now, Too happy to keep it to myself ha ha ha.

Edit: Passed 1Hr Overdrive Stability test but have sound problems, kinda like static.

[Dumo]

@ Pagen - What is the maximum bus speed / NB freq. you can boot with 4th core enabled?

[largon]

Yes but Even "Cheap Crap" as you put it does not have a Performance level when its Broke

why are you guys so hell bent on doing this? Obviously its been disabled for a very good reason

What would that very good reason be?

My 720BE with 4th core unlocked is OCCT/Linpack/Prime/ Win7 64bit stable atleast upto 3.4GHz on all cores. Haven't tried 3.5GHz, yet.

[shaolin95]

bingo has been stating all along that 64 bit is a lot harsher than 32 bit, I trust his info.

Chew, I have been using a dual boot Vista64/XP for a while now, OCing all my systems and this is the first time I cant boot into Vista. The problem is, I cant boot to vista64 even if I load optimal settings and try completely at stock so its not an overclocking issue.
Its either the ACC or perhaps something else I am thinking about.
I would go for that theory if I could boot to Vista at stock speeds but not even that. Plus I have had the same OCing speed in all my other rigs for both XP and Vista so all the evidence, at least with my systems, show that neither is better at OCing.
Regards

PS Update: I was able to flash to the beta bios and got it to show only 3 cores and still couldnt load vista 64 so I assume somehow my Vista installation got damaged in one of my previous attemps at booting at too optimistic settings.
I hope I can repair it.

[iandh]

Chew, I have been using a dual boot Vista64/XP for a while now, OCing all my systems and this is the first time I cant boot into Vista. The problem is, I cant boot to vista64 even if I load optimal settings and try completely at stock so its not an overclocking issue.
Its either the ACC or perhaps something else I am thinking about.
I would go for that theory if I could boot to Vista at stock speeds but not even that. Plus I have had the same OCing speed in all my other rigs for both XP and Vista so all the evidence, at least with my systems, show that neither is better at OCing.
Regards

PS Update: I was able to flash to the beta bios and got it to show only 3 cores and still couldnt load vista 64 so I assume somehow my Vista installation got damaged in one of my previous attemps at booting at too optimistic settings.
I hope I can repair it.

F3b's lack of ability to wake properly from S3 craptified my registry so I got to reinstall vista x64 last night. Perhaps something similar happened to you.

[shaolin95]

I dont know...I dont ever use that feature and that was my first try at booting to Vista 64 with the new bios...it wasnt even a cold boot as I went into the Bios after restarting from XP, changed my boot drive to the Vista 64 one and that was it.
It will be a pain to reinstall vista and all the games I have there so I will try installing on a different partition to make sure its indeed a corrupt installation.
In any case, I am quite happy with my new quad at the same max speed I was hitting with only 3 cores. :-)
This weekend I will finally have time to maximize my OC!

[Brother Esau]

What would that very good reason be?

My 720BE with 4th core unlocked is OCCT/Linpack/Prime/ Win7 64bit stable atleast upto 3.4GHz on all cores. Haven't tried 3.5GHz, yet.

Are you sticking me Old Boy.........My assumption would be that the fourth core is Gimped and disabled for that very reason. Perhaps.......Re-Enabling it will put unduly strain on the Processor in General and ultimately lead to its demise. That would be a safe guess on my part other then that take it up with the Lab Engineers at AMD

[keenan]

Perhaps.......Re-Enabling it will put unduly strain on the Processor in General and ultimately lead to its demise. That would be a safe guess on my part other then that take it up with the Lab Engineers at AMD

Thought this was Xtreme Systems....

[kemo]

Thought this was Xtreme Systems....

Exactly , AMD standards is totally different than our standards , it could be bad for AMD but define the word bad

[PaganII]

@ Pagen - What is the maximum bus speed / NB freq. you can boot with 4th core enabled?

Hey, Haven't tried OC yet. Still experimenting with correcting sound problem. Disabled EAX, Crystalizer (X-FI), reduced hardware acceleration, reinstall drivers. Slight improvement but not enough to play games.

[ChongL]

Maybe it's time for me to upgrade my old 165 Opti build

[Hemi345]

Relax killer it was not a personal attack against you or anyone else in this thread! I am merely stating the obvious

Am I detecting a little 720BE envy?

[shaolin95]

Maybe it's time for me to upgrade my old 165 Opti build

Do it....as much as I loved the Opty (still in my sig), this 720 upgrade is just too sweet and getting a free core cant be beat. GO AMD! I got faith on them again after two straight Intel builds.