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Failed to unlock AMD 555

post #1 of 15
Thread Starter 
Well, I just got a brand new AMD 555.


I tried unlocking it with my 790FX, and I got no luck at all.

Do any of you think a bios update on my motherboard could do the trick? Or do you think its just a bad chip?
post #2 of 15
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Dunno
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Dunno
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post #3 of 15
Yeah man I just got this same processor and it couldn't unlock the 2 additional cores either. I got it to unlock a 3rd core but it was unstable =/

If anybody knows if theres anyway to get to quad core I'd like to know or is there nothing I can do?
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post #4 of 15
Probably a bad chip. You could try another board, and BIOS update never hurts.
post #5 of 15
If you want a quad, buy a quad core cpu. Unlocking a cpu is always a gamble. Some unlock and some just won't due to bad cores.
Rosso Illuminato
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Rosso Illuminato
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post #6 of 15
Mine wont unlock and be stable either, so instead I just overclocked it to 4.0

Runs great
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post #7 of 15
Vcore.
Use more of it.
 
Draco Volans II
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Draco Volans II
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post #8 of 15
Quote:
Originally Posted by Idiot View Post
Vcore.
Use more of it.
But not too much, of course, or else you'll end up with more problems than just the 1 unstable core
And I guess it's really all a matter of luck.. My X3 450 unlocked just fine, been running Prime95 for 5 hours now on vcore 1.39
heX
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heX
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post #9 of 15
Bump the vcore, lower the HT to 1600. If it doesn't boot as a quad after doing that it probably never will..

You could also try setting 3 cores active rather than 4.. one of them might be good.
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Dont tase me bro
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Dont tase me bro
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post #10 of 15
I have the same chip and i've been helping a few guys with this problem, to start with if you have the stock cpu cooler you should change that out but first try booting with stock clock speed and bump the cpu voltage up to 1.4v if the other 2 cores still refuse to boot...u just got unlucky, if 4 does not work try 3 and try different combos...maybe core 4 is stable and 3 is not or vice versa. pm me if you need more help i got my 555 unlocked to a B55 @ 4.2ghz 1.5v and cpu nb to 2600mhz
X
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X
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