[AMD] Unlock deactivated cores on Biostar Motherboards

Hey,

yesterday I got a new Biostar motherboard (TA790GX A3+) and I found some modified Bios for it. I flashed it and after flashing it was possible to reactivate 2 cores on my A2 550. I also tried with my old CPU X3 720 Black Edition and it was also no problem to reactivate it.
They guy how modified it made a new version for almost every 790 motherboard of Biostar.

Here you can download the BIOS version:

TA790GX_A3(R1) link:w*w.4shared.com/file/117996965/ec068ea0/TA790GX_A3__R1_.html
TA790GXBE(R1) link:w*w.4shared.com/file/117997038/58ad5ab2/TA790GXBE_R1_.html
TA790GXE(R1) link:w*w.4shared.com/file/117997195/dd31a4b2/TA790GXE__R1_.html
TA790GXE_128M(R1) link:w*w.4shared.com/file/117997123/d7a6d84c/TA790GXE_128M__R1_.html

You need the following settings to unlock the cores:

HT link @ 1.6GHz
ACC @ all cores
Value(all cores) @ -2%

The forum where i find it was: w*w.xtremesystems.org/forums/showthread.php?p=3905610#post3905610

Please tell me your experience with unlocking the cores.

PS: If you try this always update your BIOS in Windows. The F12 function while booting won't work.
If you want I can upload some screenshots.

do you know if the x3 720 will usually unlock the extra core?

was thinking of getting it and unlocking (or i could have your old one :))

The deactivated cores are not always going to unlock, some will be defective, hence why they were binned for the X3 line. Of course if demand for the X3 processors outstrips the naturally defective core-chips, then you will get some quality X4s that have one disabled by default.

Either way, I'd buy an X3 if you're happy with the idea of having 3 cores... finding one that unlocks is just a bonus.

If you're intentionally looking at an x3 to have a quad- just go buy an x4, that will save you some disappointment.

I made another test with a phenom 2 550 and i was able to unlock.
Here is a Bios Screen:

h*tp://img22.imageshack.us/img22/7986/30891128.th.jpg

booting into bios is not a problem. The cores may still be defective. First try and get into windows and run prime on each core for an hour........

The unlock works on lots of mobos with SB710 and SB750.

I have just unlocked my new 720 and have it at 3.3 ghz with stock voltage with 4 cores.

Quote:

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Originally Posted by Blaineoliver

I have just unlocked my new 720 and have it at 3.3 ghz with stock voltage with 4 cores.

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What did you get in the end??

GA-790XT-DU4P Gigabyte board
720 AMD
2x2GB Corsair 1333mhz CL6

Currently running amazing.

Quote:

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Originally Posted by Blaineoliver

GA-790XT-DU4P Gigabyte board
720 AMD
2x2GB Corsair 1333mhz CL6

Currently running amazing.

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I would update your signature too. Glad to hear that you unlocked the X3 720 too.Are you using the stock cooler??

using a Titan Cool Idol cooler, got 42 idle and 52 load, cant get full core temps with unlocked cpu...