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How do I overclock?

post #1 of 6
Thread Starter 
I did attain a 4GHz on a Phenom 965 C3 stable 10hours of prime95, but somehow after a few months, it wouldn't hold any longer than 20min. I did have the voltage near 1.5 during full load(Due to fluctuation of the voltage, idle was at 1.45~). When I did this, I only touched the multiplier and raised the voltage until stable. Now, I'm looking for a more professional to overclock, but I am completely clueless. =/

It seems that I don't succeed as well with multipliers, so I'm going to try FSB this time. As for my RAM, it's a 2x2GB DDR3 1600 9-9-9-24.
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post #2 of 6
Hi and welcome to OCN! There is a very good Phenom II overclocking guide someplace here, do a search.
Also, in my sig there is a beginner-friendly Athlon II overclocking guide which might prove useful

Cheers!
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post #3 of 6
Quote:
Originally Posted by ronnin426850 View Post
Hi and welcome to OCN! There is a very good Phenom II overclocking guide someplace here, do a search.
Also, in my sig there is a beginner-friendly Athlon II overclocking guide which might prove useful

Cheers!
Is this the guide you were mentioning? Phenom II Overclocking Guide
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post #4 of 6
Hi Lifprasir,

For better help, and to avoid all of those that will ask what your build is, you should go into your Control Panel (User CP)

Then to the left, you will see, Edit System, click on that and enter all of your system specs, so those that help, have that info right in front of them!

Good luck, and welcome to OCN
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by Inteller View Post
Hi Lifprasir,

For better help, and to avoid all of those that will ask what your build is, you should go into your Control Panel (User CP)

Then to the left, you will see, Edit System, click on that and enter all of your system specs, so those that help, have that info right in front of them!

Good luck, and welcome to OCN
Ooo, thank you for the notice . So, I just read that thread posted up there, quite some information . I just read through some articles earlier saying that 1:1 FSB to DRAM is something to look forward to when OC'ing. In order to do this, it means that I have to lower my multiplier below 10? It sounds pretty weird to me. o_o

Edit : So after going back into the BIOS, I notice that it's literally impossible for me to go 1:1. No matter what, the the DRAM frequency options are either 4 times or bigger than the FSB.

Exemple,

For 200FSB x 17, DRAM frequency options were only 800, 1067, 1333, 1600. Or for 400FSB x 9, it was 1600,2133, 2667, 3200.

Why is thaT?
Edited by Lifprasir - 7/21/11 at 10:28pm
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post #6 of 6
How to get the best OC differs from system to system, I mean my 955 overclocks best by multiplier only but I can see most people run their chips with a combination of a bus and multi OC. That could be due to another part of my system, like motherboard or (more likely) RAM.

NB speed is important, OCing it is a good idea. Raise the CPU/NB voltage and NB voltage. Keep HT between 1800 MHz and 2200 MHz. Most Phenom IIs have trouble exceeding 235-240 base clock at higher multipliers (>18) from what I can tell (mine does too). Remember that a raising the multiplier usually means lowering the base clock, especially at very high clocks (>4.1 GHz). Sometimes raising the multiplier and lowering the bclk will end up getting you a higher overclock, sometimes it's the other way around. It's best to spend a few hours experimenting with all the different settings and find whatever is best for you.

Good luck.

EDIT: The FSB:RAM ratio being 1:1 was only for older CPUs that actually had a front side bus. In modern times all that matters is that you have your HT Link and NB higher than the speed of your RAM, which they should be.
Edited by Usario - 7/21/11 at 10:39pm
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MonitorKeyboardPowerCase
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16 CORES!!!! 4GB VRAM!!!! FASTER THAN 3960X + 7... ALIENWARE GAMING CARPET 
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