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Discussion Starter · #1 ·
Currently I am using multiplier overclocking, with ram and other components running at stock (as I don't intend to oc them). Those are some of the isolated clocks and voltages I came up with

NB-CPU overclocks @ stock CPU 3200 Hz
2000 @ 1.1v (stock)
2200 @ 1.1v
2400 @ 1.1v
2600 @ 1.2v
2800 @ 1.325v

CPU overclocks with stock NB-CPU
3200 @ 1.3v (stock)
3800 @ 1.35v
3900 @ 1.45v

I really wanted to keep the cpu at 3900 Hz and tried various ways to oc the IMC with it, but can't seem to find a way keep it stable. One spot was 3900 @ 1.45v and 2400 @ 1.2v was stable under OCCT and Prime small FFTs but blew up when i run IBT/linpack and Prime large FFTs. This meant that the IMC was not stable. I kept increasing the NB-CPU voltage around 1.35v and it seemed to get even less stable with the core running at a scorching 65c! I think temperature loads is keeping any imc overclocks from staying stable with the core at 3900.

For a better overclock, is it better to keep the core at 3900/2000 is or better to drop the core down to 3800 and see if I get superior imc clocks?
 

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3.8GHz for CPU and higher IMC(CPU/NB) is better. Lets say 2600 for IMC
 

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Discussion Starter · #4 ·
If 3800 @ 1.35v & 2600 @ 1.2v does not work right out of the box, which voltage do I add first? cpu or nb? or both?
 

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Quote:


Originally Posted by yoshirama
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If 3800 @ 1.35v & 2600 @ 1.2v does not work right out of the box, which voltage do I add first? cpu or nb? or both?

My old 955 needed 1.225v for 2600(CPU/NB) and 1.42V for 3.8GHz(CPU)
 

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Discussion Starter · #8 ·
Quote:


Originally Posted by savagebunny
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My IMC is a crack head I swear. 2750 NB Freq... using 1.45v but scales up to 3100 NB Freq when I bench

Yah my cpu is kinda odd too. It goes up to 4260 Hz on a stock cooler with stock voltage when I boot it on memtest, but it can never boot into windows. I'm tempted to think if I was willing to waste money and get water cooling, maybe 4Ghz will be 24/7 stable.
 
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