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Overclock i7 3770k help? - Page 2

post #11 of 21
6/1/12 at 3:17pm
Quote:
Originally Posted by BradleyW View Post

What about the ratio between the RAM and BCLK? Leave it on auto?
Yeah, leave them on auto.
Actually I upgraded the BIOS yesterday. Now i OC to 4.5GHz with LLC on Medium, everything else on default and its very stable. When running the 1st test on Prime95, the highest temp recorded is just 69 Celsius (ambient temp 20 Celsius). The other two tests on Pirme95 produce even lower heat than the 1st one. Very acceptable for Ivy. smile.gif
BTW: the core temp will significantly increase if the core voltage goes higher than 1.215v in order to achieve 4.7GHz or more. At least thats what happen on my cpu. Beware of it wink.gif
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post #12 of 21
6/2/12 at 8:48am
Thread Starter 
I've repped you all for the help. I managed to get 4.5Ghz HT at 1.9vcore and 72c max temps with average of 65c and LLC "High" I'm also using offset voltage for better idle computing.

See below.

338

338
Edited by BradleyW - 6/2/12 at 8:50am
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post #13 of 21
6/2/12 at 9:24am
nice!... you mean 1.19v tongue.gif That chip likely has another 100-200mhz in it if you want it thumb.gif
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post #14 of 21
6/2/12 at 9:38am
Thread Starter 
Quote:
Originally Posted by Ross K View Post

nice!... you mean 1.19v tongue.gif That chip likely has another 100-200mhz in it if you want it thumb.gif

Well, it drops to 1.18v so yeah i think at 1.2v i might be able to hit 4.7Ghz whilst in the low 70's!

Cheers.
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post #15 of 21
6/2/12 at 10:28am
Quote:
Originally Posted by BradleyW View Post

I've repped you all for the help. I managed to get 4.5Ghz HT at 1.9vcore and 72c max temps with average of 65c and LLC "High" I'm also using offset voltage for better idle computing.
See below.
338
338
Gratz. Nice temp.
My friend helped me to achieve 5.3GHz last night with his home-made TEC cooling system. He will post the pics later. The super-pi 1M test just took 6.892 sec. biggrin.gif And the temp was awesome. thumb.gif
BTW: nice wallpaper.. LOL
Edited by chaopinzhiwang - 6/2/12 at 10:32am
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post #16 of 21
6/2/12 at 12:31pm
Thread Starter 
Yeah get some pics mate!
Oh my wallpaper......lol.
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post #17 of 21
6/2/12 at 12:50pm
Quote:
Originally Posted by BradleyW View Post

Well, it drops to 1.18v so yeah i think at 1.2v i might be able to hit 4.7Ghz whilst in the low 70's!
Cheers.

Dont be surprised if you need to push to 1.35v or more to hit 4.7Ghz and put on 10C or more heat or maybe you can do it <=1.25v - if so I'd say you have golden chip... these things hit a wall, which unlike the SB you can overcome, but at the cost of heat and voltage. Mine takes about 0.1 more volts and runs 10C or so hotter to go 100Mhz more and that's just not worth it for me. Lost are my dreams of 5.0 for this round rolleyes.gif
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post #18 of 21
6/2/12 at 12:53pm
Thread Starter 
Quote:
Originally Posted by Ross K View Post

Dont be surprised if you need to push to 1.35v or more to hit 4.7Ghz and put on 10C or more heat or maybe you can do it <=1.25v - if so I'd say you have golden chip... these things hit a wall, which unlike the SB you can overcome, but at the cost of heat and voltage. Mine takes about 0.1 more volts and runs 10C or so hotter to go 100Mhz more and that's just not worth it for me. Lost are my dreams of 5.0 for this round rolleyes.gif

I might go for 4.6Ghz if i get bored but am happy at 4.5
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post #19 of 21
6/2/12 at 12:58pm
Totally agree with some comments. Its a great chip.
My chip is only stable with 1.272 V at 4.5 Ghz (same board).

Maybe 4,7 Ghz is possible under 1.35 V. That should be great with your chip.
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post #20 of 21
6/2/12 at 2:30pm
Thread Starter 
Quote:
Originally Posted by Pandora51 View Post

Totally agree with some comments. Its a great chip.
My chip is only stable with 1.272 V at 4.5 Ghz (same board).
Maybe 4,7 Ghz is possible under 1.35 V. That should be great with your chip.

I might try 4.6Ghz next lol.
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