i5-2500K/2600K batch number and o/c results

[Ket]

Erm.. thats a pretty daft thing to say. UEFI problems are not in anybodys head. Asus, and MSI are having issues, Gigabyte can't even make a UEFI. As for the Extreme4 at least, some of the UEFI problems that have been reported by a multitude of people are double boots before actually powering up, changing too many settings at once in AI Tweaker will cause the board to fail to POST (and thats even with leaving the multiplier at default), etc. Oh, and yes I've checked all components individually, their all fine, its a flaky UEFI.

[Alex-Ro]

Double booting is a problem for e very sandy bridge mobo right now,i did not had any problems with asrock UEFI,very stable and easy to use,so i repeat,you seem to have problems,not mobo

[Chri$ch]

2600K L042B076

[Johnny87au]

Chrisch nice chip you have there! Can you do 7/7/7/20 ? TRCD hates sandybridge ><

[Ket]

Double booting is a problem for e very sandy bridge mobo right now,i did not had any problems with asrock UEFI,very stable and easy to use,so i repeat,you seem to have problems,not mobo

The UEFI has problems. When all hardware has been diagnosed healthy and software checked for errors, the last remaining culprit is the UEFI. You forget the Exreme4 and Extreme6 may bare many similar features, but each are very different animals and prone to different issues.

[Chri$ch]

i don´t think that the memory can handle 7-7-7-20

its the 4GB Kit G.SKill RipJawsX 2133 7-10-7-27-2T

Edit: maximum for this memory (limited by BCLK)

[bro20000]

5Ghz 1.345Vcore Bios

[Chri$ch]

Btw what do you guys mean with "double boot"? Does it mean "on - off - on"?

If yes it helps on ASUS Boards if you enable in Bios "Wake on PCIE"

@ bro20000

really nice CPU

[SteveRo]

Guys, how many cpus did you go through before you found a really good one?

One gentlemen reported sampling 30 2600ks before he found gold.

[Levesque]

Bro2000. We have almost have the same chip and motherboard lol. I'm rock-stable at 49X100 with 1.35. 50X100 at 1.36 was giving me prime errors (not BSOD) after 2 or 3 hours.

Now trying to OC my RAM. Started with 16GB at DDR-1600 7-8-7-24 1.6v stock, now at DDR-2133 9-10-9-28 1.65v with 16GB. Will try to use tihghter timings and lower Vram.

[C-N]

its the 4GB Kit G.SKill RipJawsX 2133 7-10-7-27-2T

Edit: maximum for this memory (limited by BCLK)

http://www.abload.de/img/5.35ghz-2284-aida64i7qy.png

What vdimm can they 32M @ that speed?

[Johnny87au]

Chrisch oorah, 5.3ghz with 107 blck , is it L042B076 ?

[Chri$ch]

@ C-N

1135MHz (DDR3-2270) was possible with 1.675v but i didn´t test less voltage. Maybe they can do this also with 1.65v or lower

@ Johnny87au

yeah it the L042B076

Btw 5.6GHz is also possible

[dnottis]

Chrisch nice chip you have there! Can you do 7/7/7/20 ? TRCD hates sandybridge ><

Why do you say that?

I'm running a G.Skill kit of 7-7-7-24 1t 2 1.6v, prime is stable but got crashes in COD BO. backing off to 2T seems to remedy this, but maybe you are right and it hates TRCD @ 7.

Let me know what makes you think there is issues with Sandy Bridge and tight TRCD though

[C-N]

@ C-N

1135MHz (DDR3-2270) was possible with 1.675v but i didn´t test less voltage. Maybe they can do this also with 1.65v or lower

Thanks, just trying to compare my OCZ's they need 1.7~1.72 to do that timing @ 2290.. & thats on a GB which overvolts .02v

[PolRoger]

Guys, how many cpus did you go through before you found a really good one?

Finding a strong one is not easy as you can have both strong and weak with in each given batch. Still a few batchs seem to have more strong samples then many others but it is not a sure thing. I've tested six 2600k and two 2500k. I prefer 2600k because I like to have HT and my best 2600K sample will boot/bench x54 but not x55. Samples that boot/bench x55 not to mention those that do x56 seem to be quite rare. I think maybe "high average" samples will boot/bench x52 but not x53 but it is still early with SB and it is hard to say where the "bell curve" is going to fall with regards to just just how high these chips will o.c.

after tweaking about 30 pieces i got two chips good for 55x(one is dead) ,lots of 54x ,53x and 52x

[bro20000]

Bro2000. We have almost have the same chip and motherboard lol. I'm rock-stable at 49X100 with 1.35. 50X100 at 1.36 was giving me prime errors (not BSOD) after 2 or 3 hours.

Now trying to OC my RAM. Started with 16GB at DDR-1600 7-8-7-24 1.6v stock, now at DDR-2133 9-10-9-28 1.65v with 16GB. Will try to use tihghter timings and lower Vram.

Mine on old setup with msi board was 5Ghz 1.36v prime stable 12hour+
Not tryed prime with my asus board still playing around with it! Highest clock up to yet have had is 5.3Ghz with 1.425Vcore but i didnt like the temps going in the 80s so i will try when my chiller when it finally arrives! Hoing for 50/60 load temps then!


Highest Bclock and mem Freq i can get!106Bclocked limit ashame!

[aussie-revhead]

johnny - one of our guys picked up a L040B307 same as 1day's beauty but so far it doesnt seem as good.

I got my L041B204 to 5339 but it took 1.55v to do it and not really stable either .... it needs 1.31v to be stable at 4500 too , so not great at all.

[bro20000]

I just hope my L040B307 goes has high has 1day!

[Chri$ch]

@ C-N

1.7v VDimm

[Viss]

Much difference in same batches. I have had 3x L042B076 here now, best does 5ghz vantage cpu at 1.32v, worst needed 1.47v for same test.

[C-N]

@ C-N

1.7v VDimm

Thanks I appreciate your effort that’s exactly what I'm looking for.... it looks to me that the GSkills are a little better than my OCZ's if they can do 2300+ @ 1.7v & CL6 like bro20000.

[babalouj]

I just got a new 2600k today since the L042B208 was a flop and 1 core was 12C higher than the rest after multiple remounts. My new chip is a L050A933, hopefully it will be a good chip!

[dnottis]

I just got a new 2600k today since the L042B208 was a flop and 1 core was 12C higher than the rest after multiple remounts. My new chip is a L050A933, hopefully it will be a good chip!

As over clocking is about 95% luck... good luck with that one!!

[bro20000]

seeing how far i can get my memory linx stable cas7! So far!