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Sandy Bridge owners, take note - Page 4

post #31 of 185
Thread Starter 
Quote:
Originally Posted by rmp459 View Post
I know your probably sick of seeing my name at this point... but I just passed the 4h mark with small ffts at the same 4.8 @ 1.37v.

Looking very good id say right about now.

Temps with my window open are ~ 65-66C... With the case and window closed I would expect low 70s.




yea im working too... got logmein set up to monitor my temps/p95 run. Aint the same as being there
Never sick of a good, nice person on this forum. And glad to hear it's helping you aswell, I was shocked at how well it helped me.
    
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post #32 of 185
Quote:
Originally Posted by Jonesey I7 View Post
As we're all new to these chips, and probably following one of the 4-5 guides out there on overclocking them, I figured I'd share something I've found to help stability and really helped me get my prime stable voltage down.

Lowering cpu pll down to 1.76-1.74 from 1.8 helped me out SUBSTANTIALLY!! Don't confuse this with internal cpu pll overvoltage, as I still have that on, but lowering the actual cpu pll voltage helped me out a bunch, dropped .03v off of my vcore needed for stability, and knocked 2c off max temps after 1hr prime. Your mileage may very, but thought if it only helped one of you, well then it was worth the time to write.
sounds interesting ... i'll take a note ...
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post #33 of 185
internal cpu pll overvoltage actually increases the internal PLL voltage. Do me one favor, look in my guide if you have a DMM use it find the voltage read point of the CPU PLL, and read the voltage tell me if it changed.
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post #34 of 185
i have mine set at 1.42v pll with a gulftown and it helped me get a better oc than having it at 1.80v as stock was.
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post #35 of 185
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post
internal cpu pll overvoltage actually increases the internal PLL voltage. Do me one favor, look in my guide if you have a DMM use it find the voltage read point of the CPU PLL, and read the voltage tell me if it changed.
No DMM here, so the only thing I can go off of is personal experience. It definitely changed something, as I was unstable before at a higher voltage, and am now completely stable at .03v less
    
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post #36 of 185
Thread Starter 
anyone able to do the DMM voltage read out?
    
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post #37 of 185
By setting CPU PLL to 1.75 instead of 1.8 I was able to get 4.5 @ 1.29vcore whereas before it needed 1.32. Thanks for the tip +rep to you
post #38 of 185
Wow - its odd that so many people are getting the exact same results with different chips on different boards.
    
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post #39 of 185
I'm testing it now.

I'll report back with results.

Update:

Yikes!
Vcore dropped .01 (I didn't expect it to actually drop) and prime is still running after 20 min. 1.76 may not be my sweet spot. I'll have to tinker some more.
Edited by Agavehound - 1/17/11 at 6:22pm
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post #40 of 185
Quote:
Originally Posted by Agavehound View Post
I'm testing it now.

I ran Prime at several different setting to get it to BSOD within 15 min.
Settled on 1.28 at 4.6, BSOD in 10 min. Temp at 69c
Changed PLL to 1.76 from 1.89. (Don't ask me why it was set that high.)

I'll report back with results.

Update:
Yikes!
Vcore dropped .01 and prime is still running after 20 min. 1.76 may not be my sweet spot. I'll have to tinker some more.
lol wow...

So after bsod after bsod you're stable for 20 minutes, but yikes because you're using less voltage (while being stable the longest)?


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