By: Ryan Leiserowitz
*Disclaimer- CPU Core unlocking is CPU dependent – every cpu is different, you may not be able to unlock any cores, one, or both cores… this is CPU dependent as they are not all equal*
MSI has implemented their “Unlock CPU Core Function” in most of their AMD motherboards – I will show you simple steps to unlock these extra cores.
On these screen shots I am working with a 790GX-G65 with 1.5 bios and am able to easily unlock a 550 BE to triple and quad core processor…
Thanks to MSI for these BIOS options and their help…
Its very easy just select a few bios options:
1st – go to cell menu
1st step
2nd – select Unlock CPU Core to Enable and Advanced Clock Calibration to Auto
2nd step
3rd – If you want a Triple core – select your cores in CPU Core Control
3rd step
Triple core unlock
tri core 550
Fully Unlocked “Quad”
quad 550
Since Oct. 2009, MSI are releasing new BIOS revisions adding new exclusive Unlock CPU Core
function, for most of AMD platform motherboards.
(please update to latest bios)
msi AMD motherboard support list
To increase the success rate of “core unlocking,“ MSI strongly recommend you to choose CPU in the “Main Support CPU List” to be the subject of unlocking attempt. Only those CPUs have been confirmed that their concealed cores can be unlocked successfully in many forums.
cpu support list 1
CPU SUPPORT LIST
cpu support list 2
Questions / Comments?
November 14th, 2009 at 4:46 PM
Hi
Have MSI 770T-C45 Mobo and PhenomII 550BE
I have managed to unlock the 4 cores, but the system will only boot into Win XP Pro 64 SP 2 and run stable @3.6Ghz.
I have a separate HDD with Win 7 Premium 64 but when I boot into it CPU-Z does not recognize the extra 2 cores , neither does AMD Overdrive. Yet Win 7 Ctrl Panel Device Mgr shows 4 cores active. Have you come across this one before and if so how can it be rectified?
November 17th, 2009 at 10:00 AM
I will try to replicate it , but no I haven’t come across this before… I woudl just say be sure that CPU-Z and AOD are up to date – because if it is showing in Device Manager you should see it in CPU-Z I would hope… maybe try Everest and see what it has to say about the processor?
November 17th, 2009 at 2:57 PM
Hi
Thanks for the reply. I wonder if it is my BIOS, Iam running latest 8.3 for this board but the 770T Bios does not have the settings that you show above. My BIOS has EC “Normal” and “Special” and when set to “Special” ACC Control has “Auto, All Cores and per Core. If I select All Cores I get a %reading from -2/-12 and +2/+12 and 0 also there is no entry Unlock CPU Core.