Overclocking Basics Help

[ericlplante]

[/URL][/img]UPDATE: I added a pic of my bios so maybe you can better understand exactly what I mean when I say there is no way for me to adjust the VCore

I am using a Amd Phenom xII x4 965 black edition on a M4N68T-M-V2

Is CPU Overvoltage the same thing as CPU voltage? I have tried two different methods, increasing clock speed from standard 200 Etc etc as well as increasing cpu multipliers but it seems with either method I need to increase the CPU from 1.35v.

The reason I believe this is true is whenever I run Prime95 past x19 multiplier or 225 with the other method, I get a few different errors from Prime.

Any input or thoughts?

 

[bartholomew]

Hi,
Did you read Ryan's AMD Black Edition Overclock Guide?
http://www.tomshardware.com/answers/id-1874931/amd-black-edition-overclock-guide-raisng-multiplier.html

Dolk's guide
http://www.overclockers.com/forums/showthread.php?t=596023
Should Help you out a lot.

 

[bicycle_repair_man]

The guides from Ryan and Dolk are good and definitely worth a read. You should avoid adjusting the base clock (BCLK) as doing so will have an adverse effect on other components, such as PCIe and RAM. Stick to adjusting the CPU multiplier only.

Are you manually setting the voltage (VCORE) or leaving it on auto? A base clock of 200 with a x19 multiplier gives you 3800Mhz, or 3.8Ghz. As this is only 400Mhz above the processor's stock speed you should be able to leave the voltage on auto. You can then see what voltages you get and use that as a base to tweak them manually if you wish. I'd also suggest that you run Prime95 again with auto voltage to see if the same error occurs.

 

[ericlplante]

The guides from Ryan and Dolk are good and definitely worth a read. You should avoid adjusting the base clock (BCLK) as doing so will have an adverse effect on other components, such as PCIe and RAM. Stick to adjusting the CPU multiplier only.

Are you manually setting the voltage (VCORE) or leaving it on auto? A base clock of 200 with a x19 multiplier gives you 3800Mhz, or 3.8Ghz. As this is only 400Mhz above the processor's stock speed you should be able to leave the voltage on auto. You can then see what voltages you get and use that as a base to tweak them manually if you wish. I'd also suggest that you run Prime95 again with auto voltage to see if the same error occurs.

See that is the very problem, there is no option in my BIOS to adjust the (VCore) the only adjustment that seems like it could be VCore is CPU Overvoltage which from my research I dont think is it. I thought this was maybe because I had a super old verion of BIOS but I updated it and its still the same.

 

[bartholomew]

I believe that CPU Overvoltage is CPU voltage(VCore).
You can try bumping it up a notch. like the guide suggests don't overvolt , i.e don't increase it too much at one time & you should be fine.

 

[bicycle_repair_man]

I believe that CPU Overvoltage is CPU voltage(VCore).
You can try bumping it up a notch. like the guide suggests don't overvolt , i.e don't increase it too much at one time & you should be fine.

I'd also go with CPU Overvoltage, even on the basis that it sounds the most likely. You may also find this useful.

http://www.tomshardware.co.uk/forum/265857-29-suggested-settings-phenom-asus-m4n68t