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Intel i7 920 C0 overclocking to 4.2ghz *Update: at 4.0ghz

post #1 of 13
Thread Starter 
I'm reading all of the available threads in the essential guides sticky and the top, and I'm just wondering if anyone has any further advice for me in order to reach this goal!

I've currently reached 3.5ghz stable with a 20x175 multiplier, but I've read that I should drop down to a 19x for greater stability.

I'm really hoping that I can succeed in this, so all constructive advice is welcome!
Edited by stu. - 1/12/11 at 5:07pm
 
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post #2 of 13
turn on the extra x mke ti 21 i got mine to 4.5 np
post #3 of 13
try the 21 multi

Quote:
Originally Posted by Onions View Post
turn on the extra x mke ti 21 i got mine to 4.5 np
on the iggy list, because i cant read that.
post #4 of 13
for some reason, it seems odd multipliers do better with the i7. at 19x, you will need a bclk of 222 or so to reach 4200mhz... use the 21x turbo multi, for that you only need a bclk of 200
    
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post #5 of 13
Thread Starter 
I thought turbo mode was something that was not recommended? I'm in the process of flashing my bios to the latest version... I have yet to ever do so after purchasing the mobo in April '09.

So even though it won't show a 21x multiplier, enabling turbo mode will "change" the 20x that I see into that once the computer boots up? Sorry for the lack of technical jargon. :[
 
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post #6 of 13
Quote:
Originally Posted by stu. View Post
I thought turbo mode was something that was not recommended? I'm in the process of flashing my bios to the latest version... I have yet to ever do so after purchasing the mobo in April '09.

So even though it won't show a 21x multiplier, enabling turbo mode will "change" the 20x that I see into that once the computer boots up? Sorry for the lack of technical jargon. :[
You need to disable all the power tech from Intel and then up your multi to 21. I would imagine your EVGA board can do this...

If not run the Multi at 19 and go at 222 or w/e.
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post #7 of 13
As long as it's more stable than trying to run 221*19 all is fine. Doubt you can get it running at a bclk like that without jacking up voltages I personally wouldn't set (and I'm a roomy kind of guy when it comes to that).

I'm not exactly familiar with how Evga boards show turbo mode. For me I simply can set a 21 multiplier when I set the clocking type to manual (instead of auto/DOHCP/etc.).
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So sexy it Hz
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post #8 of 13
What voltage did your chip take to reach 3.5 or is it still on auto?
Edited by tats - 1/12/11 at 6:05pm
post #9 of 13
Thread Starter 
With my new bios, I can see that turbo mode does indeed increase my multiplier to 21x.

I'm running at 3.6ghz with 1.3v.

EDIT: It's actually at 3.77ghz. I cannot read apparently. Stress testing is going on as I write this.


Edited by stu. - 1/12/11 at 2:48pm
 
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post #10 of 13
Thread Starter 
Sorry for the double post, but this is what I have now in order to reach 4.0.



Any suggestions as to where my CPU VTT should be? I realized having this at stock was keeping me from going from 3.9 to 4.0, and I finally reached stability after increasing it to 1.36 or so from 1.2 (random guess... didn't test steps beforehand)
 
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