haha..i also dunno bro..btw,other apps to test cpu beside cpuz?everest?..when prime95,is it all ur 4 worker running..if yes,might be just a software corrupted..hehe..

how many graph in the task manager, performance tab?

No need to worry, AMD doesn't have HT (virtual cores) like Intel
So if you see 4 processors in the device manager, you already have a quad core

maybe there's buggy in the cpu-z, hehe.....if i wanna upgrade my mobo, is msi 890fxa-gd70 a good pick?

hi guys. i juz successfully unlocked my AMD Phenom II x3 720BE to quad core. i don remember wats my batch number, 0907 something. will reconfirm wif this. i don intend to unlock it coz i juz bought my new mobo Gigabyte 870A-UD3 n i juz tried my luck to go enable the core unlock in the bios.

haven't try to OC it yet, will try it later.


This post has been edited by cmgan72: Aug 3 2010, 11:53 AM

Congrats bro~~now its time to unleash its potential on all 4 cores

Device Manager = 4 processors
Task Manager: 2 processors

When revert back to lock

Device Manager = 2 processors
Task Manager : 2 processors

Crazy

I tried googling around with ur problem but no hope..do u try reset ur CMOS and try the ACC directly?..

hey, try amd overdrive see.
http://game.amd.com/it-it/drivers_overdrive.aspx

Removed CMOS and reactivate the 4 cores unlocker and result is the same.

user Overdrive to verify, 2 cores only. Guess another bad luck

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Added on August 4, 2010, 12:07 amAnd, I forgot to thank you for your time to help to research and advice.

Appreciate it.

This post has been edited by twtang: Aug 4 2010, 12:07 AM

is tis the 2nd x2 555 u bought to try ur luck unlock to 4 cores?

Yes.

@twtg
what mobo and bios revision..
how about update bios? or use older bios
newer not always better.. so u try googling about the best bios for ur mobo..
if not..just try one by one..

Mobo is: Asus M4A785TD-V-EVO and Bios already the newest version.

Hmm.....really unlucky huh you

The current mobo I am using can set in 0.1 increment i think. testing @ 1.4 now with 3600 mhz very stable no restart or any problem. Only thing is my xfire gpu sumtimes goes into single mode. Mebe is coz I o'c the 4850 @ core 700 and memory 1100. If lower to core 680 and memory 1080 no prob. Actually the whole system i use to play sc2 and sum online games only. Got the X2 555 coz I see it's good batch so hand itchy. Got the mobo also coz previous mobo is 790X and cannot unlock properly. Memory wise I tried the kingston hyperX lovo series seems like no diff with the normal kingston using elpida chips. provided I manually set the timings.

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Added on August 4, 2010, 3:53 amThanks for the chart I will try and follow the timings see if it gives better results.

This post has been edited by EvilDevil118: Aug 4 2010, 03:53 AM

look at the chart, DDR3 1333 7-7-7-20 vs DDR3 1600 9-9-9-24,
give the results of 57.9fps and 57.2fps respectively.
actually can conclude that there are no different on performace between them in the crysis game.
just if you have extra budget, you can get DDR3 1600 ram.

hi guys. i tried to oc my newly unlocked proc. but when reach 3.2GHz then it will BSOD.

after tat i need to increase my CPU voltage to 1.325V only able to boot up. izit normal ? thanks

Yes its normal~~
Every processor is different in terms of ocing abilities and voltage needed

If u go till 3.2Ghz at stock and it BSODs, means you hit the wall for stock voltage and need to increase the Vcore to make it more stable

i got stable at 16x215=3600mhz for my x4 b55, vcore 1.4v and ram 400mhz but when i tried to oc to 18x215=4050mhz it can boot but restart right after i start prime. what is the prob for tis issue? is it the vcore or other setting?