CPU Overclocking voltage confusion! - Do I have a bad CPU? Please help!

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TaintedGG

TaintedGG

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Hi,
I'm trying to overclock my FX-8350 CPU to ATLEAST 4.5ghz. I tried originally at stock voltage and only got it to be stable at 4.1ghz. I increased the voltage from 1.2875 to 1.3 (.0125 incriment) and it still was not stable at 4.2ghz according to prime 95 test. I've been increasing multiplier and with each fail in prime 95 increasing the voltage by .0125. Now in my BIOS I'm on 4.4ghz and 1.375. Is this normal? I'm not much of an overclocker but I wanted to squeeze more performance out of my CPU. Also even though my voltage is set to 1.375, hardware monitor has a max voltage reading on CPU VCORE of 1.32 and CPU-Z is giving me the same reading for core voltage. My temps are only peaking at 46C. Am I doing everything right?

Before I forget here is the link to my setup - http://au.pcpartpicker.com/list/4WxTHN

Also another thing, I was reading various over clocking tutorials about LLC and how I should set it to medium or high or whatever the tutorials said, but in my UEFI I only have enable or disable and the note says enable for AM3, disable for AM3+

Any help appreciated!

EDIT:

I'd like to further point out this:
https://postimg.org/image/x49qwk47b/

As you can see my voltages are reading a max of 1.26 volt after 5min of stress testing with prime 95. In my BIOS i have it set to 1.4125. Why is this number so different?

Thanks
 
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MeanMachine41

MeanMachine41

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The FX-8350 has very little overhead above stock frequency with Air Cooling.
Clock frequencies of up to 4.8GHz have been achieved using AIO Water Cooling.

LLC (Load Line Calibration) is an important aspect of Bios settings when OCing this chip.
The % or rate will depend on the OC however start on "HIGH" first and "CPU Current Capability" to 120%
Unfortunately, I have no experience with your MB nor its capability, however the principles are the same.

There is a very good Video on YouTube by Jayz Twocents however, look at his cooling setup.
Go Here: https://www.youtube.com/watch?v=MckeAmnDeTk

I will see if I can find a decent Vid for your Specific MB.

Start with that first and if you encounter issues,then I can help with further Tweaking in Bios.
There is a method for OCing, to get the most from your chip.

 
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TaintedGG

TaintedGG

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Thanks for your help.

As I was saying above i don't have an option for Medium, high, ultra, low or anything like that, simply enable, disable and auto ( I left it on auto). Funny you should link that video because that was what I was following originally, but he seemed to get much higher clocks on lower voltage. I understand his cooling is better but that only effect temperatures, right, not how much voltage you need..? My CPU isn't getting hot or anything. I'm on 4.5 GHz at 1.4 voltage right now and it seems stable in prime 95.I'll wait to see if you can find any details on my motherboard!
Thanks a ton for your help :)
 
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TaintedGG

TaintedGG

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I'd also like to ask what my NB frequency should be as well as my CPU NB Voltage? The NB Frequency is 2200MHz (11x multiplier) and the CPU NB Voltage at 1.1625. Are these right? should I be increasing these as well to help with stability?
 
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TaintedGG

TaintedGG

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Weird, from what I saw it's a somewhat popular motherboard as its at the cheap end for 990FX. I enabled LLC and it didn't seem to make much noticeable difference.

Anything at all that you could help me with would be great.
Thanks heaps.
 
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MeanMachine41

MeanMachine41

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When you start your OC do not make arbitrary changes without knowing what the changes will bring about.

First stick with your CPU core ratio multiplier for now and leave CPU/NB alone at AUTO.
Raise the multiplier to slightly above stock frequency say to 4.2GHz and increase core voltage to 1.3V.
Now run a stress test to check for stability and to see how your temperatures are going.
Use HWMonitor and AIDA64 for this purpose.
If you are stable then Increase frequency to 4.4GHz and core voltage to say 1.32V and again conduct a stress test.
If at any time the OC fails then increase voltage again by 1 increment and test again. rinse and repeat.
You will get to a stage where no matter what you try, you will not be successful and this is referred to as the WALL.

Do not try to go to what you desire in one hit.

There are a number of things that determine how far you can go.
Your nemesis is heat, the more voltage the more heat on an exponential scale. Hence adequate Cooling.
The strength of the CPUs IMC in conjunction with your DIMMs and settings in Bios.

 
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TaintedGG

TaintedGG

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Thank you, this is what I have been doing for the past couple of hours, its just that my CPU requires more voltage than what you are saying (4400mhz @ 1.32 volt is more like 4400mhz at 1.4 volt)
 
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MeanMachine41

MeanMachine41

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Well I don't recommend going above 1.4V. You should have LLC on enable.
What is happening at the settings you describe, a fail Oc or What?
Post the result of HWMonitor when your system was under stress test.
The only other thing I can think of, Is your Power Supply up to the task?
 
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TaintedGG

TaintedGG

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When i say fail I mean that one of the cores in prime 95 had an error. I did research and based of the video that you linked me to with jayztwocents i just increased the voltage by .0125. I'm sitting on a stable clock of 4.5ghz (which was my goal) at 1.4375 volt, and compared to other results I have seen, this isn't to high, so I am happy with this. Been sitting on prime 95 for about half an hour now and no errors coming up, so I'm just going to stick with these settings now :).
 
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