Hi all.. Need help with the unlocking of the X2 550BE to X4 B50. The Specs are:

AMD Phenom II X2 550BE
2GB Kingston DDR3 1333 Value Rams
Gigabye GA-MA790FXT-UD5P
ATI Radeon 5770 1gb

I have tried to unlock it to X4 B50 and it was a success when i see it boot at the bootup screen but the problem is my Vista installation has problems. Cannot install. If I use an existing installation using the X2 550BE setup, it will not load windows when i converted the proc to X4. Anyone can help with the BIOS settings to unlock this proc with no problems ?

What setting did u set in the bios? Try changing the ACC value yet?

yes...changing it to acc... All Cores.. Hybrid EC will change the proc to X4 B50 and the Normal EC will maintain it to X2 550

No what i meant is that when u turn on hybrid mode, instead of using the default -2% for the ACC, have u tried any value other than that? Like -4% etc..??
Some unlocks need different value to be stable..

nope.. din play with the settings ..

could be one of d cores is faulty...

u can try to force it as tri-core or play w/ d acc value (+2, +4, -2 or -4) like guru cloudwan said...

btw, what's ya batch...

This post has been edited by ah_khoo: Dec 14 2009, 10:50 AM

hi bro colabear, so u take the board from tze??

yah..sold to me ... sigh... 1 big round ...

haha.. ok.. nice.. i miss the board.. i love the 5.1 dolby digital software inside it..

i dont get it.. .. Sorry,

its ur installation of windows vista have problem or ur chip got problem?

Make sure ur windows running fine first before go for overclock or unlock.

if ur windows is running fine, then unlock the chip all setting at default accept the ACC funtion.
if no boot - quickly refer to ah_khoo ..

when running on x2 550 no problem... can install windows and boot into windows. when unlock the 2 extra cores.. windows cannot boot. hangs at windows vista installation.

if it was me...
set vcore to 1.30v -1.38v (monitor the temp). if no boot, start to play with 3 core, most probably u dont have all 4 healthy core. (to do this refer to bro ah_koo post & cloudwan post).
if no go... buy my mobo ....

btw, mind to let us know what is ur cpu temp when running on 550be?

AMD Phenom II
HDZ550WFK2DGI
CACYC AC 0915FPMW

http://www.xtremesystems.org/forums/showpo...99&postcount=25

http://forums.extremeoverclocking.com/atta...43&d=1246047299

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Added on December 14, 2009, 10:40 pmboth of them have the same chip & mobo as urs. mayb updating bios would help. errr.....guess so .

This post has been edited by BuckRoger: Dec 14 2009, 10:41 PM

sorry for noob question,what's the dif bettwen unlock?overclock

This post has been edited by naminakata87: Dec 22 2009, 05:41 AM

Overclock = More clockspeed etc etc
Unlock = More core or More cache.

-pWs-