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Phenom II 955 OC'ing to 4.1 on stock Vcore

post #1 of 9
Thread Starter 
I OC'd my new 955 to 3.8 using only multiplier it had been stress tested and been running it for a couple days.

I got the urge to push it further today. I got to 4.1 with Vcore stock before it started crashing on me.

they have been blue screens, oc guides say I need to tweak my NB speed and voltage.

I'm wondering if its worth it to maintain a stock Vcore for least temps and wear, and try and get it stable through NB voltage tweaking?

Currently clocked at 3.9 and Vcore stock, testing for stability. Leaving it for the night, so far stable.

Also, just wanted to know if this is common, at Vcore stock being able to get to 4.1, I was able to run prime and gave errors to stop as opposed to just crashing.

cpu-z validation for 4.0 run below

2058358.png
Edited by Heedo_yuy - 10/22/11 at 12:44am
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post #2 of 9
Quote:
Originally Posted by Heedo_yuy;15403916 
I OC'd my new 955 to 3.8 using only multiplier it had been stress tested and been running it for a couple days.

I got the urge to push it further today. I got to 4.1 with Vcore stock before it started crashing on me.

they have been blue screens, oc guides say I need to teak my NB speed and voltage.

I'm wondering if its worth it to maintain a stock Vcore for least temps and wear, and try and get it stable through NB voltage tweaking?

Currently clocked at 3.9 and Vcore stock, testing for stability. Leaving it for the night, so far stable.

Also, just wanted to know if this is common, at Vcore stock being able to get to 4.1, I was able to run prime and gave errors to stop as opposed to just crashing.

cpu-z validation for 4.0 run below

2058358.png

eek.gif
That.. I.. What..
And I thought i had a golden chip wth.gif
post #3 of 9
man i had to really push my 955 to obtain 4.0GHz stable 1.66v gonna try tinkering to drop it lower..... took me a while just to find stable ground.
post #4 of 9
to break 4ghz your gonna have to bump those voltages alot i got to 4.4ghz on 1.45 volts 4ghz was stable at 1.275 but to get to 4.1 i had to jump to 1.4
post #5 of 9
you cannot reach 4ghz with 1.275v
    
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post #6 of 9
Stock voltage means nothing. If it's on the auto setting, for all you know, it could be running at 1.475v.

Is that voltage on load? Could rise much higher if that's only idle volts.
Quote:
you cannot reach 4ghz with 1.275v

Yes you can. There have been a few chips capable of it.
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post #7 of 9
Thread Starter 
Clock : 4.017.79, v core : 1.296 is what CPU-Z was telling me.
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post #8 of 9
Software reading aren't accurate. Check your BIOS and report back.
Quote:
Originally Posted by Heedo_yuy;15415252 
Clock : 4.017.79, v core : 1.296 is what CPU-Z was telling me.
post #9 of 9
Thread Starter 
I set in my bios to 20x multiplier and set Vcore to 1.3 V. I set Vcore to 1.3 did not leave it on auto.
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