OCUK Sandy Bridge, SB-E and Ivy Bridge 5GHZ Club

If you pass fft but fail blend, then it's ram / mem controller related.
I'm mobile at the moment, but take a look at my memory thread in the CPU section.

I don't really understand it but it seems to be some of the backend settings that make the difference. I can set my ram at 1866 and it will memtest and fft but not blend.

With mem at 1600 I'm stable in both blend and fft right up to 5.2
 
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rustEswan said:
They seem to be happy only up to certain multipliers, rather than a given clock speed, eg I can't boot at 51x 100 BCLK (5.1ghz) but I can boot and superpi at 50x 104 BCLK (5.2ghz) indicating a multiplier wall of some kind.
Mine does not like BCLK at all... 100.4 is the max it will do at any multi.
My wall seems to be x54. even tried x55 and x56 at lower than 100 BCLK to maintain the 5400MHz and was instant lockup.

I have been really extravigent and yesterday ordered another 2600K plus The Gigabyte UD4... I will see if its the motherboard or the chip thats blocking me from the magic x55. Looks like i will have the first Sandy Bridge CPU and motherboard on MM in a coule of weeks lol
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Congrats 1Day... I presume that was one of the new chips you got.
Do any of the others do 5.5+ if they do I would gladly take one off your hands :)

Oh... i might be a bit slow at udating the first post as i'm sulking :)
 
DSN said:
No, it was a bit of a bodge clock.

So system was still loading up all my junk.

As i kicked pi off the second it booted.

pi > print > save > BSOD..

but still 5.2 verified :P
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Ah.... nice job and welcome to the club :)

Try booting at lower Multi and using the Asus software to kick the multi to 52, you should find that will give you more time.
 
1Day said:
Here is one update for your list Simon.

20100109215712.png


Gigabyte GA P67A-UD7
Cooling Single Stage
Aventium DDR3 PC1600 ram
OS XP Pro SP2
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I want to ban you from the list,
but I cant think of a ligitimate reason to do so! LOL
 
Philski said:
Another Corsair Hydro User reaches the milestone!
Next up: Massaging the RAM... keeping pushing P67 -- just avoiding those Intel SATA ports:eek:(!) lets hope ASUS do not curtail BIOS development due to the recall...


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Your screen shot does not show the Turbo speed, you have grabbed it while its at 1600Mhz :( so there is no evidence of the 5GHz :eek:

Can you redo the super-pi and grab the cpu-z while its at 5GHz pls?
 
Dazboots said:
This run was to get on the table and yes it still should count.
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I understand and have updated your score... however without the screen shot showing the 5.2GHz there is nothing to prove what speed it's run at... As you were at 5.2GHz before and this is just a lower Super-Pi score, I don't see the harm in updating your score :)

It's a pain when it dropps back to x16 before you take the screen grab... but we must all ensure its taken while at 5.GHz + please.
 
1Day said:
Would you do me a favour please, when you get the OEM CPU could you post the batch and wafer number.
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Sure.
I know Ocuk got one batch delivered on the 4th Feb and another on the 25th Jan... but I have no idea what the batch will be.

I was ordering one to make a new Media centre / NAS box (Replace my Atom 330 which just winds me up it's so slow)... so I paid a little more for another 2600K even though it will ultimately be going in an Asus P8H67 Pro to use the graphics and therefore not be overclocked.... although I will try and under volt it to keep it as cool as possible.
 
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1Day said:
Wish I could get hold of someone there who would be willing to let me know batch numbers. I am looking for another 12 CPU's to bin. :)
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I know several people in the shop quite well... been dealing with them for years... but I can't persuade them to identify the batches :( This is understandable really when you think of how many they have and that they are all boxed / stored in the warehouse. The only way they are likely to see the benefit is if there were one or two golden batches that were identifiable that they could sell at a premium (well that's the way I would think). But, correct me if I'm wrong, there is not really an identifiable golden batch... There seem to be some good ones from all sorts of different batches.

I expect we are seeing the best chips from the centre of a silicone wafer, so assuming each batch = 1 or more wafers then there might be a couple of golden ones per batch!
 
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John24 said:
If OcUK are hand picking chips for their OC bundles, it's possible you'll end up with the ones that didn't make the grade rather than the new stock, no?
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They don't need to hand pick.. the bundles are well within what all the Sandy Bridge chips seem to do without breaking a sweat. 4.4 and 4.6 are nice overclocks and will keep things nice and cool, but they are not a challenge.
 
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