The Asus Asus M4A785TD-V Evo: just one of 17 motherboards that can offer the new Asus custom unlocking feature.
Asus has revealed a new BIOS update for no less than 17 of it's AMD motherboards that will have Phenom II X2 owners falling over themselves to get at it. The update will allow AMD Phenom II dual cores to allow the choice of not only unlocking an extra one or two cores, but also
which core will be unlocked.
This is a massive benefit for Phenom II X2, X3 and even Sempron 140 owners that have hidden cores because AMD uses one standard Agena die for its quad, triple and dual Phenom IIs. Often unlocking BOTH of these hidden cores will cause instability if everything isn't 100 per cent working, as AMD sometimes uses duff inventory to fill lower rated products.
Asus' advantage is that if you have just one bad core, you can specify the BIOS to unlock a single, specific core to give you a free triple core that's far more likely to be stable and overclockable. Plus, it's a completely free update: what's not to like!
To enable it, in the BIOS, go to the Advanced tab - CPU configuration and set ACC to Auto before enabling "Unleashing Mode". This opens up another option underneath that allows the user to specify which cores they want unlocked, providing more than one is hidden.
All AMD motherboards are supported that include ACC (Advanced Clock Calibration) on the SB710 or SB750 southbridge:
Let us know your thoughts in the forums.
As a Phenom II X2 550 owner I only wish I had of bought an ASUS mobo instead of going for a Gigabyte 790X-UD4P and its core unlocking since my chip refuses to run as a quad no matter what I do (increase voltage, decrease clock speed/HT speed etc)
I can only hope Gigabyte and other manufacturers do something similar!
\m/
But ive been doing that on my budget Gigabyte 720-US3 for the last 3mths.......its pretty easy.
Whats the big deal.?
Well done, ASUS, for inviting me to the dark side... or the light side, depending on who you speak to.
How have you been managing to do that?
Easy, just reset Cmos, go into ACC/NCC, set to 'Per Core', turn on which cores you want with +2%, leave the 'bad' core turned off..IE..
Core 0 +2%
Core 1 +2%
Core 2 +2%
Core 3 0
Or
Core 0 +2%
Core 1 +2%
Core 2 0
Core 3 +2%
Reboot.......there, you now have just turned your 550 into a Phenom II 720x3 BE
More often than not, its Core 3 that needs to be left off.
Works for me just fine....
Also, I can see this being used by a few shady PC shops to make magic three core rigs.
Also, do you really need the "no less than"?
All AMD motherboards that include ACC (Advanced Clock Calibration) on the SB710 or SB750 southbridge are supported
eg:
Phenom II X2 545, 3.0GHz, Socket AM3, 32/64-Bit, Retail pack with fan $165.77
Phenom II X3 720, 2.8GHz, Socket AM3, 32/64-Bit, Retail pack with fan $228.38 (on special)
Phenom II X4 945, 3.0GHz, Socket AM3, 32/64-Bit, Retail pack with fan $305.61
Sapphire PE-AM2RS740G Motherboard $131.00
Asus M4A785-M Motherboard $160.68
Doesnt work for me at all sadly
This is kind of odd because other ASUS boards with the 710 Southbridge DO have this new BIOS revsion listed on the ASUS website:
"M3A79-T Deluxe BIOS 1203
01. Support ACC "Unleashing Mode".
Maybe when it went in the wild they found the 308 had issues?
I see no other reason why yours hasn't. .. also as I understand it you *should* be able to unleash your cores with the existing BIOS as it has ACC control built in. If you are having trouble unlocking cores ... it could be that you are one of the rare few who actually got a dud core as opposed to one that was merely disabled for marketing reasons.
Matthew
I checked this with Asus because there's no "0308" (or whatever) specifically, and it's any BIOS THAT IS THAT NUMBER AND BEYOND all support this function. It was an internal document I was allowed to publish bits of, so within Asus they understood what it meant - I should have conveyed this better had I known.
The people I know in Asus insist that it does work, and I really trust they know what they are talking about.
I cant check because we sent a load of Asus boards back recently, but I'll see what the other publications have to check one of their boards on the list myself, when I come back to AM3 in the next few weeks.
This specific board nowhere in the changelog is the change mentioned.
Do you have documents that show for sure later BIOS versions listed for that board support the function even though the change remains unlisted?
I guess we have someone who can try ....
Matthew
That isnt turning a core of.
That 12-/12+ is acc OC amount. IE 2% Over clock pr core
MSI 785/710 series mobos come with the same princible. In fact theirs come first.
I was running a B50 @ X3 @ 3.5ghz stable - 12hr prime95.
Its more likey youll get 3 cores running stable than getting all 4.
But motherboard-Bios are the biggest factor. Like! MSI 770T-C45 only as the ability to unlock all or none. Running a 2-/+ OC can make it even more unstable.
You need to actualy see, Core disabled, or like this 1/2/4 active
The ones published are all I have - everything after those listed in the news article should support the feature. It's not like they should remove it - no reason.
good news m8 ;)
i've found that your mobo (and NOT ONLY this model of gigabyte) also supports such method of unlocking, check this link