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AMD Phenom II X3 720 Unlocking 4th core

post #1 of 24
Thread Starter 
I have a question about the AMD Phenom II X3 720. I'm reading reviews people are saying that they are able to unlock a 4th core. Does this mean you can make this Tri Core to a Quad core?
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post #2 of 24
Yes, you can make a tri to a quad, but most of the tri cores have the 4th core disabled because they are unstable, but you might get lucky.
    
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post #3 of 24
Yes It is possible, but those cores are disabled for a reason.
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post #4 of 24
With a board that supports AAC, yes.

But like Lemon drips said, the 4th core is unstable.

For example: I have my 4th core unlocked and running stable at 3.1ghz, if I bump up to 3.2ghz I start failing P95 after 20-30 minutes on the 4th core. It's also managed to screw up most program based temperature programs, so I only see the overall CPU temp and not per core.
post #5 of 24
Thread Starter 
wow.. That would be amazing I’m going for the TRI core for sure. I hope I get lucky lol. So to unlock the 4th core do I just go into my bios and enable the 4th core and use prime95 to test for stability?
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post #6 of 24
Yep, but you have to make sure your board has the 750 SB.
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post #7 of 24
Thread Starter 
Quote:
Originally Posted by Decade View Post
With a board that supports AAC, yes.

But like Lemon drips said, the 4th core is unstable.

For example: I have my 4th core unlocked and running stable at 3.1ghz, if I bump up to 3.2ghz I start failing P95 after 20-30 minutes on the 4th core. It's also managed to screw up most program based temperature programs, so I only see the overall CPU temp and not per core.
I see.
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post #8 of 24
Thread Starter 
Quote:
Originally Posted by BlackOmega View Post
Yep, but you have to make sure your board has the 750 SB.
Why do i need the 750SB?

I was going to go with this mobo
http://www.newegg.com/Product/Produc...82E16813128392

but it has only 710SB.
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post #9 of 24
Quote:
Originally Posted by qTAP View Post
Why do i need the 750SB?

I was going to go with this mobo
http://www.newegg.com/Product/Produc...82E16813128392

but it has only 710SB.
Because only SB750 has ACC.
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post #10 of 24
Thread Starter 
Sorry i know i have so many questions but what is ACC?

EDIT- i just google it i know what it is now.
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