E8600 Prime Stable Overclocking Database

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Originally Posted by JohnnyV

I selected this cpu on batchcode so no way I'm gonna return it :P
Just gonna re-seat the waterblock and see if it makes any changes.

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Just like Infa says, the tempsensors are stuck its a known problem on these 45nm chips, I got the exact same stepping as you and have the same problem. Movement of Core 1 is 0 and Core 2 is 3. My block is fitted right and makes even contact. I had these problems before with another E8400.
I mean even at 10x333 with 1.1v i get 41 degrees idle. And then when I Prime is stays at 41 degrees. So bad temp sensors, but great stepping.
Wouldn't wanna RMA it in a liftime :P

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Originally Posted by JohnnyV

Can you elaborate a bit more on that? I'm priming atm as well and noticed that from 4250 to 4500 it needed a lot more juice. Perhaps by tweaking the GTL's the Vcore can be lowered?

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I noticed that even when I set 1.25vcore and 1.35vTT i still couldn't do a SuperPi run 7x600. I tried lower and higher voltage, different mem dividers all kinds of GTL, nothing seemed to help. Then I changed FSB Ref which was set to 2A nd changed it to 29. Lo and behold, I can run SuperPi stable and also with lower voltages. :D
So you good give that a try.

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Originally Posted by mrcape

Thanks for the quick replies guys! No idea how that batch is, but I've had 4 820s so far - all great on air, but not so great under LN. By any chance have you guys pushed them under LN? I'm looking for 6.3ghz+ 3d bench stable, it may be a long and impossible hunt. :) Your info helps me already though.

What are you showing for a vid on that batch?

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My vid is 1.26. This ones going on its own water loop first and if things look good perhaps some LN.

Wow that's a trip, the range within the batch. Same was true with 820a599.

Anyone receive an 822 in the US?

so the good batches are in the 820s-822s?

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Originally Posted by DemonEyez

Then I changed FSB Ref which was set to 2A nd changed it to 29.

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I don't undestand witch setting it is.
There is no fsb ref setting in my p5q deluxe bios, what is the model of your motherboard please ?

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Originally Posted by emoners

so the good batches are in the 820s-822s?

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As always it's hard to say, hit or miss even within a certain batch.

I haven't been tuned in on buying one since summer, but last I checked most in US were getting 820 and in EU 822. Can't remember hearing of any other e86 batch.

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Originally Posted by emoners

so the good batches are in the 820s-822s?

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Some 820's are not so good.

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Originally Posted by Dee

Some 820's are not so good.

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mine is Q820A306 1.1875 vid :eek:

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Originally Posted by Dee

Some 820's are not so good.

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Originally Posted by zsamz_

mine is Q820A306 1.1875 vid :eek:

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:cool:

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Originally Posted by zsamz_

mine is Q820A306 1.1875 vid :eek:

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Yes, very nice.

Mine is Q820A670. 1.2500 VID.

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Originally Posted by mrcape

As always it's hard to say, hit or miss even within a certain batch.

I haven't been tuned in on buying one since summer, but last I checked most in US were getting 820 and in EU 822. Can't remember hearing of any other e86 batch.

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There's a Q821 batch also, as far as I know.

Here is my humble contribution to this thread:

http://img.photobucket.com/albums/v6...hrsPrime45.jpg

Vcore can probably be a tad lower, set it to 1.296 to be safe, i don't want to go through another boring few hours of prime :D

Setup:

E8600 Q822A435, vid 1.1750 - Rampage Extreme- watercooling.

3+ hours of Prime small FFT's cause small puts the most strain on the CPU.

humble!! yeah:D

Bravo Zeus, this chip is really making it crazy:eek: GG

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Originally Posted by ToyTen

humble!! yeah:D

Bravo Zeus, this chip is really making it crazy:eek: GG

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Yeah, it's a nice CPU, it can run 4GHz undervolted to a whopping 1.12V :D and 4.3GHz with just 1.204V -- Orthos small ffts stable that is. 20ºC+ ambient.

Nice chip Zeus.

Yeah awesome voltage for those speeds. Can you share your other settings with us?
I'm curious whether settings like CPU PLL and vTT contribute to this.

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Originally Posted by JohnnyV

Yeah awesome voltage for those speeds. Can you share your other settings with us?
I'm curious whether settings like CPU PLL and vTT contribute to this.

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Here you go

Damn dude, those are really low values compared to what I use. I think that REX is a really nice board and it's awesome that it employs so many sensors.

These are my bios settings for 4.4Ghz (464 x 9.5) Prime stable settings:
- vCore 1.4125v (gives 1.344v under load in CPU-z)
- CPU PLL 1.58v
- VTT 1.26v
- vNB 1.55v

Zeus -- great results there bud! Very nice chip.

CandyMan -- you're doing fine. Considering my E8600 needs 1.4v for 4.33GHz I'd say your little E8400 is better than my chip. Make sure you have the latest Core Temp to see accurate temps.

Just had to try at even lower voltage, merely for bragging rights. :D

http://img.photobucket.com/albums/v6...Prime1288v.jpg

1.288V stable as a rock, i won't discourage you guys by saying even lower could be possible but i have a gut feeling....

Very nice. Mine will probably do around 4.10GHz max with 1.288v.

sorry for the double post

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Originally Posted by Zeus

Just had to try at even lower voltage, merely for bragging rights. :D

1.288V stable as a rock, i won't discourage you guys by saying even lower could be possible but i have a gut feeling....

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Man, you're one lucky b.... :p: I need this for my Q822A435 VID 1.2000

http://img384.imageshack.us/img384/817/4500ke4.jpg

Still testing if it can withstand 4 hours of Orthos, rightnow it's priming for 2.5 hours so no complaints :D (finally got it stable after flashing older bios for my P45 T2RS Plus and tweaking GTL on second core)

DemonEyez, your sig says 9x600 @ 1.37V, that's an awesome CPU mate, wanna trade? :D