Unlocking Cores on MA785GT-UD3H

[Tryby]

Hello,
I recently bought a mainboard Gigabyte MA785GT-UD3H with an AMD Phenom II X2 550 BE and i use the ECC Firmware to unlock the other 2 cores.
After some testing, i found out that core 0 is unstable ... but core 1, core 2 and core 3 are perfectly functional.
Is there any way to unlock just 1 core? So i could have an Phenom X3?
I use now the BIOS version F3 and i have rev 1.0.
Is there any available bios for this mainboard that supports core control? And one that can disable only one of all 4 cores.

Thanks in advance and sorry for my bad english.
Tiberiu.

Later edit: Sorry ... I posted here wrong. I kindly ask an admin to move this post under Overclock thread.

[wilfy]

Update to the latest Bios and this gives you control over each core to enable or disable them. My phenom 550 x2 now runs as a 3 core rock solid even when overclocked to a tiny fraction under 4 Ghz. The gigabyte windows desktop bios updater (@bios)  is very easy and simple to use. You need the f6 or later if one has been released bios. This will solve your problem and makes the Phenom competative against Most intel CPU's costing up to about £150.

PROBLEM the latest BIOS for the GA-MA785GMT-UD2H motherboard does not have per core enable/disable control so my Phenom 555 with at least one duff core cannot be used on this board. Has anyone found a way round this on this board?

[wilfy]

Correction,
                  I apologise , I was going by my (dubious!) memory when I said stable at just under 4Ghz. The truth is 3723 Mhz made up of a 17x muliplier and a clock of 219 Mhz. This is on standard voltages , perhaps more would be available with increased voltages but the VRM's do not have heatsinks so I will not risk this. This proves stable when tested with the AMD overdrive uility stability test. Also the per core enable/disable seems to work for cores 2 and 3 only. I have a Phenom 555 but I cannot unlock this as either 2 cores are faulty or the faulty core is not number 2 or 3.

[j2o]

hi guys try it is the bios
have a good look at this thread should help some what  http://www.overclock.net/amd-cpus/535501-amd-phenom-ii-core-unlocking-guide.html

hope that helps