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post #41 of 56
Just another suggestion, i found that underclocking my RAM (lets be honest w/ 16GB is it really going to make much of a differance?) one notch (from 1333 to 1066 or what ever it is) actually helped me to stablize my 2500k at 4.8GHz. Since I use my system primarily for FAH it doesn't even use 25% of my RAM so I'm not worried about RAM speed, but its just a suggestion.
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post #42 of 56
I dunno if anyone suggested this... but have you tried lowering your BLCK? with higher clocks, you'll want to lower your BLCK for stability and increase your multiplier to get the same clocks

edit: sorry, not same clocks, but BLCK at 97 x50 is better than 100 x48.
post #43 of 56
Quote:
Originally Posted by AchuSaysBlessYou View Post
I dunno if anyone suggested this... but have you tried lowering your BLCK? with higher clocks, you'll want to lower your BLCK for stability and increase your multiplier to get the same clocks

edit: sorry, not same clocks, but BLCK at 97 x50 is better than 100 x48.
^^ This, I was at a BLCK of 100.5 and had to drop down to 100.1 to get 4.8 stable.
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post #44 of 56
Quote:
Originally Posted by AchuSaysBlessYou View Post
I dunno if anyone suggested this... but have you tried lowering your BLCK? with higher clocks, you'll want to lower your BLCK for stability and increase your multiplier to get the same clocks

edit: sorry, not same clocks, but BLCK at 97 x50 is better than 100 x48.
Quote:
Originally Posted by WonderMutt View Post
^^ This, I was at a BLCK of 100.5 and had to drop down to 100.1 to get 4.8 stable.
It is recommended not to change the BCLK from, all overclocking should be done with the multiplier. Only reason I see, is when your doing some crazy suicide runs or than that leave it where it is. You will get more stability when using 100 as appose to 100.1
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post #45 of 56
I have mine at 100.2 just because my board seems to think that 100.0=99.8 for some reason and I just want the frequency to look nice. But yeah, any BLCK OC I tried took too much voltage to stabilize.
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post #46 of 56
Quote:
Originally Posted by WonderMutt View Post
Just another suggestion, i found that underclocking my RAM (lets be honest w/ 16GB is it really going to make much of a differance?) one notch (from 1333 to 1066 or what ever it is) actually helped me to stablize my 2500k at 4.8GHz. Since I use my system primarily for FAH it doesn't even use 25% of my RAM so I'm not worried about RAM speed, but its just a suggestion.
What are your temps for 4.8 Ghz on the Hyper 212+ (hottest typical, not outlier, temperature in Prime95 using RealTemp or Coretemp)? I have the same setup and I'm doing 4.7 Ghz testing as we speak, temps look fine, I think I can reach 4.9 but 5.0 - if my CPU even allows it - would probably get hot.

It's weird how HW Monitor is ~3C lower than Core Temp and Real Temp. I wonder which is right.
    
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post #47 of 56
Quote:
Originally Posted by donkrx View Post
What are your temps for 4.8 Ghz on the Hyper 212+ (hottest typical, not outlier, temperature in Prime95 using RealTemp or Coretemp)? I have the same setup and I'm doing 4.7 Ghz testing as we speak, temps look fine, I think I can reach 4.9 but 5.0 - if my CPU even allows it - would probably get hot.

It's weird how HW Monitor is ~3C lower than Core Temp and Real Temp. I wonder which is right.
I tend to go for realtemp and cortemp for my temperature readings.

If your looking to compare with other's, temp wise and voltage wise, check out my Sandy Stable club. I'v compiled a list in different orders to help with those comparisons. IIRC there is few people who have submitted their 212+ results after a 12hour blend. Hopefully you'll find it handy
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post #48 of 56
Thread Starter 
Thought I'd mess around with hyperthreading, the idea being I could have high clock no HT profile for gaming and a lower clock HT profile for when I'm working. Did a few benches to gauge if it would even be viable first...

(GTX 570s at stock)
5GHz HT On
3dmark: 10316
Heaven: 2130

5GHz HT Off
3dmark: 9701
Heaven: 2053

4.8GHz HT On
3dmark: 9905
Heaven: 2056

5GHz HT off is pretty much the same as 4.8 with it on, it'd be pretty pointless..

Underclocking RAM did not help, BSOD 101, needs more vcore. 100% certain my chip just cant push 5GHz at 1.5 and stay stable.
Edited by Glancey - 7/29/11 at 10:54am
post #49 of 56
what were the temp and voltage differences at 5.0 with HT On VS HT Off?
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post #50 of 56
Thread Starter 
Sorry bud, I didn't note temps for those benches and vcore was 1.5 for all. Quick and dirty.
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