Core i7/X58 Overclocking Thread

[Guacamole]

Bios F3, turbo works as intel intended. When TDP reaches a certain level, extra +1 multi is dropped. Bios F3, loading 1 or 2 cores with blend, and turbo still on, load 3 or 4 and turbo is off. This setting is useful for allowing turbo at same vcore as when turbo is turned off.

Bios F4's, this "TDP limit" is apparently turned off, just like you can disable speedstep, so that turbo enabled is practically giving you +1 multi, so you will need more vcore to be stable. If this is a hidden setting in bios, (at this point I would think it has to be), I wish GB would let us turn it on or off, ie make the setting visible....though I guess we can by changing bioses...There are pluses and minuses to both ways.

I agree control over that feature would be very cool it opens things up for 920 users if this is possible I would hope all the manufacturers would make this option available.. So actually you get a 21 multiplier all you have to do is enable turbo for 21 and disable for 20 that's great actually.. I don't see a negative side to this what so ever...

P.S. I finally stabilized the 920 at 4.0Ghz on the P6T Deluxe I will post some pics in a bit after I prime for a few more hours but I got 3 hours of prime95 in now and it looks like it's finally stable..

[Metroid]

I got another record concerning low voltage:

3.7 1.16V 4 threads, very much stable.

Prime 95 almost 6 hours.

[GAR]

Nice chip metroid, now go for 4ghz.

[SAE]

4 threads loaded and turbo does not drop multiplier? I thought that's a gigabyte-thing!?
Good job, mate.

[Hornet331]

4 threads loaded and turbo does not drop multiplier? I thought that's a gigabyte-thing!?
Good job, mate.

nope its not a GB thing, if the cooling is good enough you get the 21 multi on every board.

[herderien]

P.S. I finally stabilized the 920 at 4.0Ghz on the P6T Deluxe I will post some pics in a bit after I prime for a few more hours but I got 3 hours of prime95 in now and it looks like it's finally stable..

i'm really really interested in seeing ALL your settings :p

[dj883u2]

My Core i7 920 on Air!

[SAE]

nope its not a GB thing, if the cooling is good enough you get the 21 multi on every board.

Yeah, I read about it some time ago, but I was not really able to find a proof for it. Stressing more than 1 or 2 cores/threads, multi's gonna drop - was all peeps were reporting, iirc. But I remember seeing results of a fixed turbo mode in some of the gigabyte testing threads first.

My Core i7 920 on Air!

[...pics]

Wow, at only 1.2V!
Nice one. What stepping, if I may ask...

[Hornet331]

My Core i7 920 on Air!

1.2V loaded.

[Metroid]

Nice chip metroid, now go for 4ghz.

I'm priming it 4Ghz at 1.25V. It boots at 1.20V no problems runs a little and suddenly freezes. I need to adjust some settings.

My Core i7 920 on Air!

You won the lottery, 8 threads 4.0ghz at 1.20V.

How many minutes priming so far?

Edit: Priming picture

[dinos22]

My Core i7 920 on Air!

[dinos22]

common guys WTF
you are supposed to be quoting batch# particularly with these crazy overclockers

[GAR]

Nice chip man, 1.2V for 4GHZ, sleep with your eyes open, im coming for your chip!!!

[Guacamole]

Those C0/C1 chips are bad to the bone... That guy is priming at 4.0Ghz with HT at 1.2 that's awesome haven't seen anything like that before...

[Splave]

My Core i7 920 on Air!

sick man, could you post your mobo voltages?

[Metroid]

---------------

Have you placed a washer under the brackets of your True? It helped me with the temps.

An update and the maximum I could get stable with 8 cores at 4.0Ghz.

1.27V was my best shot.


1.20V

[roller11]

My Core i7 920 on Air!

dj883u2
Where did you get your i7 920, what retailer?

[Ace-a-Rue]

i am shocked at all the posters trying to overclock and having very frustrating results with high temps...of course, anytime you are 1 ghz over default speed, on air, is doing very good in my book!

[FragMagnet]

Had a little time today and pushed the memories a bit further
Still 1.6v in bios 7 8 7

Love my new Corsair kit

Good news for sure, I just bought the same cpu (exact!), mobo, and ram here in Canada. I pick it up friday morning with a Cooler Master V8, HIS 4870 1gb, PC&C 750 crossfire editon. Ran a search on the batch # and found this thread, I've been out of this for a while it should be fun.....

[RamGuy239]

So it's rather these bad Core i7 chips, not the motherboards that are the bottleneck at the moment?

Any ETA on new chips?

[Metroid]

So it's rather these bad Core i7 chips, not the motherboards that are the bottleneck at the moment?

Any ETA on new chips?

These are not bad chips by any means, 50% overclock on every chip is just amazing.

[SetteUltras]

These are not bad chips by any means, 50% overclock on every chip is just amazing.

+1

I did not expect nehalem to overclock more than 3.5Ghz on air to be honest.So these clocks are trully amazing, making the upgrade worth it in my opinion.

[dj883u2]

Yeah, I read about it some time ago, but I was not really able to find a proof for it. Stressing more than 1 or 2 cores/threads, multi's gonna drop - was all peeps were reporting, iirc. But I remember seeing results of a fixed turbo mode in some of the gigabyte testing threads first.




Wow, at only 1.2V!
Nice one. What stepping, if I may ask...

The Batch is: 3837B080

[dj883u2]

I'm priming it 4Ghz at 1.25V. It boots at 1.20V no problems runs a little and suddenly freezes. I need to adjust some settings.




You won the lottery, 8 threads 4.0ghz at 1.20V.

How many minutes priming so far?

Edit: Priming picture

The Processor running for 2 hour, and no problem.

[dj883u2]

sick man, could you post your mobo voltages?

V.core: 1.240v on bios - 1.20v on Windows.
Cpu pll: 1.84v;
Qpi/Vtt: 1.28v
Multi: x19;
BCLK: 211;
QPI Link: x36;
Dram: 1688Mhz;
Vdim: 1.62v;
Loadline: on;
Uncore: x16;
Memory: 8x;
Turbo: OFF;
Pcie: 101;
Performance: Turbo.

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