AMD K10.5 Core & Cache Unlocking Guide - Page 195

Hey, I'm decided to unlock my fourth core again since BF3 is coming up.. last time I had it unlocked it ran superb as a "Phenom B45 X4". But its been about 6 months and when I set ACC to auto at -0% or +0% my PC nolonger posts so I have to reset cmos jumpers. I have not fooled around with the voltages, they're at stock AMD Athlon II X3 445 voltage. Any suggestions? When I was using the fourth core about 6 months ago it was not defective and its been OFF since then.
Not sure if right thread to ask for help in,
Edited by james_rich - 10/12/11 at 4:32pm

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hi guys
iv unlocked mine and tested it for a hour. so far its solid.
i was advised on a forum a long time ago to just concentrate on bumping up the multiplier and the vcore if its a amd??.
i went up to x18@1.52 but it failed 5 minutes into the test. any advice on getting it higher??
whats the max vcore you would advise??

I've been searching around and hopefully I can get an answer here. I am a noob so bare with me.

I just recently purchased an Athlon II x3 455 Rana, Biostar A880g+(with ACC) mobo and I'm trying to figure out what I need to do to know if my unlocked 4th core is stable.

So I've gotten to the stage of stress testing with Prime95. HWmonitor shows cpu socket temp of 33 celsius and from what I understand core temperatures on an Unlocked cpu are incorrect because they show 55. I start the torture test and my cpu socket temp goes to about 44ish after 2-3 mins, but then once my inaccurate CORE temps hit 70 it thottles/downclocks my cpu

I have CnQ and C1E(think that's what it's called) disabled.

In BIOS I do see a choice called HTC temp limit ='s 70 celsius. Not sure if that is my issue. Any help/advice would be much appreciated!

hello.

I have a phenom x2 550 (revision RB-C2) board ga-990xa-ud3 and was wondering what I'm doing wrong when unlock the cores in bios.
already put in auto unlock core and windows starts and i go to the net and everything but when I put the prime blocks computer
when i put in three core, windows starts i play fifa, need for speed the run but after a while the computer crashes and reset is the solution. i dont have any blue screen. if i put prime with the youtube computer freezes.
already put the memory voltage 1.6, 1.5 cpu voltage. Nortbrige 1.2 cpu, cpu 1.4 NB Control VDD and HT Link to 1.3.
another thing is that in 2 cores i put the speed of 3.8 and nb to 2700 and ht link to 2700 and computer goes ok with the prime95 and youtube.
Sorry for bad english
thanks

it was easy to unlocked my phenom 2 x2 565 3.4ghz to a phenom 2 x4 B65 3.4ghz with the asrock A770DE+ mobo i get a rare bsod sometimes with it but besides that it runs stable and its amazingly fast and didnt have to change nothing but enableing ACC and thats it