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How to unlock phenom II x2 555 be on GA-MA74GM-S2 rev 4.1 mobo

Last response: in Overclocking
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July 31, 2011 12:54:59 AM

hi all,

ive been googling and googling but nothing seems to work.ive been trying to unlock my phenom ii x2 555be to quad but i have no idea what im doing wrong..is it possible my chip cant be unlocked or my mobo is not capable of unlocking it even i have ACC capabilities or my bios version is wrong


phenom II x2 555 be
GA-MA74GM-S2 rev 4.1
bios version fb
4gig of ram
hec raptor r500 watts cpu
250gts vcard


pls help :( 
July 31, 2011 2:18:07 AM

oh but this what it says on the feature


EC AOD-ACC Support
EC AOD-ACC is described as Embedded Controller for AMD OverDrive- Advanced Clock Calibration, which is the newest feature comes from AMD SB750/ SB710 SouthBridge chip, destined for the AMD Black Edition CPU to overclock through BIOS setting or AMD OverDrive™ utility further than was previously possible.


http://www.gigabyte.com/products/product-page.aspx?pid=...

and i have ACC on my bios..but whenever i sellect auto nothing happens still x2 and when i select hybrid on my EC firmware my pc froze on boot up :/ 
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a c 241 K Overclocking
July 31, 2011 2:45:06 AM

Oh sorry , you have newest 740mobo , I forgot it, unlock sometime succes and sometime No .. , in acc select all core or enabled don't let auto.
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July 31, 2011 3:09:44 AM

yes tried those also along with changing EC firmware with hybrid but same result..my pc froze in boot up but it does say Phenom x4 but dont wanna go to windows..without setting the EC to hybrid nothing happens :(  ..
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a c 241 K Overclocking
July 31, 2011 3:45:03 AM

No luck .. for the simple reason this motherboard doesn't accept any 125w CPUs ... the phenoms X2s
are 80w CPU's and as soon as you unlock the 4 cores
it becomes 125w.
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a c 241 K Overclocking
July 31, 2011 3:46:55 AM

go bios setting vcore set manual and set minimal raise 0.025 for boot
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July 31, 2011 4:20:30 AM

sorry my english is not very good...set minimal raise to 0.025?

-0.025 or + 0.025

i apologize for asking so many question btw henydiah
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a c 241 K Overclocking
July 31, 2011 4:28:39 AM

+0.025 , if not enough +0.050
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July 31, 2011 5:53:37 AM

still dont wanna boot :D  ...i think my proc is defective or my mobo sux too much it doesnt deserve a quad lol
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a c 241 K Overclocking
July 31, 2011 6:33:19 AM

Yeach get no lucky ..
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July 31, 2011 6:53:11 AM

does updating the bios to latest version help?
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a c 241 K Overclocking
July 31, 2011 7:19:13 AM

I think limited TDP in mobo, it have 90TDP, if unlock cpu will become 125TDP .. The cpu good and succes if use mobo 790 .. I out of idea, apologize me if can help you.
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July 31, 2011 10:15:19 PM

no u need to hava a AMD SB750/ SB710 SouthBridge chip and the max tdp of ur mobo wouldnt support it
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!