Unlock Phenom II x2 550BE on Gigabyte GA-MA785GM-US2H?

Jawshh

Posts: 388   +1
Hi,

I have been looking forward to purchasing a 4-core cpu to replace my phenom II X2 550 that I've had for like 2 years lately but I decided to try to unlock it and maybe I could save some bucks. My CPU-Z screen is in the attachments.

Basically, I have a Gigabyte GA-MA785G-US2H revision 1.1 mobo with F11 bios. My cpu is Phenom II X2 550 Black edition codenamed Callisto. According to wikipedia, Callisto archs have 2 cores locked, so, unlockable maybe!?

So, I changed ACC to auto and EC firmware to Hybrid, saved settings and rebooted. Surprisingly, the machine booted fine! However, when I check on CPU-Z, nothing's changed! It's still Phenom II X2 with 2 cores and 2 threads! I checked in msconfig as well and there are only 2 cores!

Can't say that the machine is really stable though! It IS stable, but not like when ACC is disabled!

Because the machine booted fine, I assume that the dormant cores aren't really faulty right? Or, are they?

Is there something more I need to do to have those cores unlocked?
 

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Sounds like you did everything right..... strange..

Have you tried setting acc to all cores?
 
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