AMD 965 BE 4Ghz Overclock issues.

[Dukeofjamming]

Hi everyone,

I am writing to ask for help from some more experienced members of the community regarding overclocking my processor. I am currently using a Noctua NH-D14 and I am running my overclock at 3.8ghz with a voltage of 1.488V, I have attempted to hit 4ghz however I have encountered some issues, at first I was getting general instability and a thing that was reported by windows called a clock watchdog timeout causing a crash so I raised my voltage step by step, at 1.98500V the CPU is able to boot into windows and I can launch prime 95 for a small amount of time however it then crashes, the next step on my voltage goes over 1.5V which from looking on online guides has warned me that it is not for inexpeirenced overclockers which is my reason as to why I am asking for advice as to what to do on here.

Many thanks for any help,

Benjamin

 

[johnnyb105]

sounds like you have reached your best possible overclock at 3.8 Ghz WITH that chip it may not bump up anymore.

 

[Wolfshadw]

Stock speed it 3.4GHz. You got it stable at 3.8GHz.

Not all processors of the same model number will OC the same. One might go to 4.4GHz while the next will only go to 3.5GHz. If you're stable at 3.8GHz, call it a win and a day.

-Wolf sends

 

[jeffredo]

Most Deneb X4 processors can generally get about .4 to .5 Ghz overclocking (my X4 980 went from 3.7 Ghz stock to 4.1 Ghz). Basically, what you have @ 3.4 Ghz stock to 3.8 Ghz is pretty typical.

 

[CountMike]

Which stepping is that processor at ? Only C0 have good OC capabilities. My was running at 4.2 GHz with 1.502v 24/7 but under a Scythe Mugen3 cooler with 2 fans.
Once again, that stepping number is important with those processors. Other considerations are MB and it's VRM section.

 

[Dukeofjamming]

Which stepping is that processor at ? Only C0 have good OC capabilities. My was running at 4.2 GHz with 1.502v 24/7 but under a Scythe Mugen3 cooler with 2 fans.
Once again, that stepping number is important with those processors. Other considerations are MB and it's VRM section.

My Processor stepping according to CPU-Z is 3 and the Revision is RB-C3 does any of that help? Also I have the MSI 990FXA GD65 AM3+ Motherboard and the cooling is a Noctua NH-D14 which is a dual fan cooler.

 

[CountMike]

C3, that's why, those were never good overclockers. 1.98500v is way over recommended maximum. If you didn't have such good cooler it would have burned. Don't go over 1.55v no matter what. Whichever speed you get at that voltage and decent temp would be it's limit.

 

[Dukeofjamming]

C3, that's why, those were never good overclockers. 1.98500v is way over recommended maximum. If you didn't have such good cooler it would have burned. Don't go over 1.55v no matter what. Whichever speed you get at that voltage and decent temp would be it's limit.

Ah wait my mistake the voltage isnt that high it is at 1.497500v the question was whether it was safe to step just over that 1.5v mark because if i can go to 1.55v I think I can stabilise it at 4Ghz, the more voltage I was applying the more stable it was getting.

 

[CountMike]

They claim 1.55 as absolute maximum. I did have 1.505v for some time and it didn't mind. I didn't get any more stability or OC after that number under similar cooler and no more than 55c.