unlocking 4th core

**bro20000** · 03-10-2009, 10:33 PM

Does anyone know how to unlock the 4th core on a 720be on the Gigabyte GA-MA790FXT-UD5P motherboard!

**Shrekogre** · 03-10-2009, 10:38 PM

just put acc to auto?

**bro20000** · 03-11-2009, 12:54 AM

its on auto no luck!

**bro20000** · 03-11-2009, 07:07 AM

Sorted now just got new bios F3b works amazing

**charged3800z24** · 03-11-2009, 08:02 AM

Originally Posted by bro20000

Sorted now just got new bios F3b works amazing

is that on the website now?.. I can't get it to load at the moment.

**keenan** · 03-11-2009, 08:05 AM

Here...

Set ACC to "per core" and change value of all cores to +0%

Proven...

**iandh** · 03-11-2009, 01:19 PM

I just switched to F3b and now am running four cores 1hr OCCT stable at stock, so I am assuming the fourth core is just fine. I'll do some OC'ing later.

Mine worked just fine by setting to "auto".

**shaolin95** · 03-11-2009, 01:24 PM

Originally Posted by keenan

Here...

Set ACC to "per core" and change value of all cores to +0%

Proven...

What is that driver installation screen all about? Do you install phenom drivers like we used to do with the Opteron 64?

**keenan** · 03-11-2009, 01:27 PM

Just windows 7 installing the forth core...

**shaolin95** · 03-11-2009, 01:30 PM

Have you tried Vista 64 or XP compared to Windows 7 and if so, did you notice any of them been better at OCing?

**iandh** · 03-11-2009, 01:34 PM

Just wondering, does OCCT show the fourth core for you guys? Both task manager and CPU-Z show fourth core but OCCT does not...

**demonkevy666** · 03-11-2009, 01:37 PM

on a side note I read techpowerup says 4mb can go to 6mb with ACC turned on, and some bios on X4 m3 chips with less cache.
64 bit will probably bsod before getting into windows.

**keenan** · 03-11-2009, 01:38 PM

Originally Posted by iandh

Just wondering, does OCCT show the fourth core for you guys? Both task manager and CPU-Z show fourth core but OCCT does not...

Try reinstalling it... I guess this is just the down side of unlock the 4th core, but all my temp reading are at 0'C

Any 64bit OS has less OC headroom, I can get 3.8Ghz 3Dmark06 stable, tested 3.6Ghz prome so far, stable with 1.45V

Havent even started playing with the NB...

**shaolin95** · 03-11-2009, 01:46 PM

On my HTPC set up both Vista 64 and Xp SP3 OCed to the same max thought.
I am going to try both on my phenom as well and perhaps give Windows 7 a try as well.
Regards

**keenan** · 03-11-2009, 01:58 PM

Try Windows 7048, great performance increase over 7000

**ChongL** · 03-11-2009, 02:45 PM

Hmmm...I thought some of the cores weren't stable (the locked ones)

**Brother Esau** · 03-11-2009, 02:52 PM

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

**i found nemo** · 03-11-2009, 03:05 PM

the spirit of overclocking is essentially get the cheapest crap and o/c the hell out of it .... or so i thought?

so ontop of o/cing the hell out of it, we're also unlocking extra cpus like ppl did with 6200 nvidia cards to get 6600 performance ( 4 to 8 shaders )

**Brother Esau** · 03-11-2009, 03:15 PM

Originally Posted by i found nemo

the spirit of overclocking is essentially get the cheapest crap and o/c the hell out of it .... or so i thought?

so ontop of o/cing the hell out of it, we're also unlocking extra cpus like ppl did with 6200 nvidia cards to get 6600 performance ( 4 to 8 shaders )

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

**charged3800z24** · 03-11-2009, 03:19 PM

Finally got the validation to work. I would say this 4th core is a fully functional one

I tried the f4g bios on this MA790FXT-UD5P but 4 cores not possible for me. F3B works like a charm.

**Brother Esau** · 03-11-2009, 03:21 PM

Just so you guys Know....AMD has made request to Mobo Makers to remove that feature capability from Bios.

**iandh** · 03-11-2009, 03:23 PM

Originally Posted by Brother Esau

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

I am not hell bent, I just spent about 30 seconds updating the bios, another 30 seconds changing ACC to "auto", and another 30 seconds starting OCCT.

I've had this mobo/cpu for weeks and this is the first time I've made an attempt to unlock it. I purchased them together on release day before unlocking was even known. I did this just out of sheer curiousity.

It looks so far that I got one of the good chips that just has a disabled core to be sold as an X3, which is further confirmed by how many have had luck with 0904's.

If I have a good fourth core that I can enable with little to no effort and no negative consequence, can you give me a good reason why I should not enable it?

Originally Posted by Brother Esau

Just so you guys Know....AMD has made request to Mobo Makers to remove that feature capability from Bios.

Obviously that didn't matter to Gigabyte because yesterday they just added bios F3b "Update ACC code for Phenom X3 CPU" that enables unlocking.

edit: Also, nobody ever seemed to be upset about people unlocking geforce 6800's via bios mod, how is this any different?

**mnemonix** · 03-11-2009, 03:34 PM

Originally Posted by iandh

I am not hell bent, I just spent about 30 seconds updating the bios, another 30 seconds changing ACC to "auto", and another 30 seconds starting OCCT.

I've had this mobo/cpu for weeks and this is the first time I've made an attempt to unlock it. I purchased them together on release day before unlocking was even known. I did this just out of sheer curiousity.

Ditto. Have 4x @3.2GHz stable.

**iandh** · 03-11-2009, 03:39 PM

Originally Posted by mnemonix

Ditto. Have 4x @3.2GHz stable.

Nice little bonus isn't it!

Do you know your stepping?

**Brother Esau** · 03-11-2009, 03:52 PM

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

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