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

[2good4you]

Great work and seems pretty hot to dont kill it and what are max multi ?

It won't die. 58 is max i think. It has high potential but a hot chip, even on low vcore, as I see 1.37 quite low.

That's VID no vCore...

Yeah? Maybe you now what a multimeter are.

[moorhen2]

If that's 5ghz at 1.37v vcore,why are your temps hitting 90+c,????

[humeyboy]

Try IBT at that voltage and see it fail as it is NOT stable!

[Unoid]

is there such a thing as a multiplier limit bug?

whenever I try x49 it won't work, no matter the voltages. haven't tried x50

specs in sig.

UPDATE: running x50 at 1.35V Prime95 stable for 30 minutes now. Maybe x49 is evil.

[st0ned]

It won't die. 58 is max i think. It has high potential but a hot chip, even on low vcore, as I see 1.37 quite low.



Yeah? Maybe you now what a multimeter are.

1st of all watch the language because I don't know you from anywhere... 2nd your CPU is morelikly thermal throttling. And as to my knowladge about what a multimeter is I'm a studdent of electrical engineering , but I can't see any you your image.

[2good4you]

If that's 5ghz at 1.37v vcore,why are your temps hitting 90+c,????

Bad cooling

1st of all watch the language because I don't know you from anywhere... 2nd your CPU is morelikly thermal throttling. And as to my knowladge about what a multimeter is I'm a studdent of electrical engineering , but I can't see any you your image.

So you have to know me because I correct your speculations? I find my quote perfect to you. now you speculate that the cpu is throttling. Sorry but it don't. 98c is where it starts throttle. Also prime is getting the chip hotter. Not practical apps as heavy you wish.

[st0ned]

Bad cooling



So you have to know me because I correct your speculations? I find my quote perfect to you. now you speculate that the cpu is throttling. Sorry but it don't. 98c is where it starts throttle. Also prime is getting the chip hotter. Not practical apps as heavy you wish.

Me and I think other XS users don't like to be lied to, and non of us is stupid, at least I know I'm not. Prime isn't more stressfull then IBT/Linx ( at least if you have the right linpack ) else your pic doesn't show anything about vCores, I'm not saying your chip doesn't do what you say it does, only that the onli proof you showed is flawed. I myself have a chip that does the same, but I have real printscreens showing correct data

PS. TJmax isn't the temperature where it starts throtteling, but I let you read about TJmax at intel datasheet.

[Falkentyne]

2600K, 5016Mhz Turbo on all cores with HT on with 1.37v Prime stable 8 threads

Uh?
First of all, you need to post a proper screenshot. That's NOT the voltage at all, and the fact that that CPU is *THAT* hot tells me that you're at anywhere between 1.45 to 1.5v. And you have NO BUSINESS insulting stoned, because he clearly knows far more than you will ever know about this hardware.

#1:
That's the VID. The VID is the voltage identification signal that the CPU requests from the motherboard. The VID is calibrated individually and varies even from identical CPU samples. The VID is only the vcore if the voltage in the BIOS is set at Auto, and even that doesn't tell you the CURRENT voltage, since the requested voltage, *IF* set for auto, doesn't compensate for what is known as vdroop. If you set a BIOS voltage manually, then the voltage the board gives the CPU is completely independent and irrelevent to the default VID.

#2: Try posting a CPU-Z screenshot from the most recent CPU-Z version, and if that's not accessible for you, use hwinfo32. THEN show us your vcore. Then I suggest you post an apology, AND update your sig. And please don't ever use coretemp to show voltages anymore....

The ONLY reason we even care about "VID" is that it's been known that chips with a lower default VID (usually measured at stock speeds) tend to run at 5 ghz with lower voltages on average, BUT also run hotter, while chips with a higher default VID often require higher voltages for 5 ghz, but run cooler (meaning: the higher vid cpu will run cooler at the same mhz/voltage, than the lower vid chip). Not ALWAYS, but uusally.

[Jeager]

I really like my 2500K, I set the vcore to 1.2v and every day I raise the clock by 100. I'm now at 4.2 and IBT is still running fine, I hope I will do 4.5 at this voltage

As for my temp, my core 0 is always 6° colder than my 3 others core, is that normal or should I reapply my thermal compound ?

[eva2000]

Don't think George has a CPU yet :p Hard to post a screenshot then....

""Today, 12:51 AM
eva2000
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Yeah if I am lucky earliest I can see my 3930K shipping would be by Tuesday/Wednesday ... fingers crossed ""

Unless it's already thursday in down Under...

Well got my 3930K on Friday just waiting on EK LT Supreme 2011 mount which should come this week

In mean time messing around with new Asus Maximus IV Gene-Z with 2x new 2600K L047A898 but so far no much luck with getting high multi cpus.

1st 2600K L038A660 still best one so far 5Ghz 1.38v 32M pi, 5.2Ghz 1.512v 32m pi on Corsair H50-1 and handles 2x2GB Corsair Dominator GT 2000C7 at 2133Mhz 7-7-7-24 1T fine on Gigabyte P67A-UD7 1st rev board.

These L047A898 are so far hitting 51x multi wall for around 5154mhz at 1.496v on Corsair H50-1 with Maximus IV Gene-Z but still figuring out bios settings! But Prime95 custom small ffts at 4500mhz 1.312v so far.

[eva2000]

just came back from the store again today
same supplier lmao

batch:3104C269


not as good as the one i just sold, but hey.. past 3 chips have been 58 or up

lucky bugger, if you got a spare one to sell to a memory enthusiast in Australia let me know

[aussie-revhead]

I asked him first ..... veloCD back here has had four that do 58x or more .....

[M3kk]

My mistake mate, comment withdrawn (it was a 2600K screenshot)

A local guy is having nice luck with 2600K's, he found two that do 56x on air and now says he has one that boots into windows at 60x at 1.544v ..... I havent seen a screenshot yet but I have no reason to doubt him.

Where is the screen?

[eva2000]

I asked him first ..... veloCD back here has had four that do 58x or more .....

fight fight!

[humeyboy]

What's the lowest the BLK can be set to so I can see how much Multi my 2600k has before I swap over for the 2700k sitting here?

I somehow doubt it would boot much above 5GHZ with 100BLK!

[Falkentyne]

Well, the problem is, it isn't exactly a multiplier wall at all. It's a frequency wall. For example, there are two walls...one with PLL overvoltage disabled and another with PLL overvoltage enabled. When you enable OV, you tend to gain around 400-500 mhz of possible mhz. Here's an example: You can replace this example with one more suitable for your current CPU:

If you find that you can load windows and run games at 4.9 ghz, 100x49, with PLL overvoltage disabled, but if you do X50, your board says overclocking failed, or boot loops and falls back to last settings (unless you switch PLL OV enabled), then what it means is that your CPU can't do 5 ghz with OV disabled, NOT that it can't do a x50 multiplier. You can test this by raising the BCLK and lowering the multiplier to x49, x48 or x47, to see if you can reach 5 ghz that way. What you will find is that your CPU will simply OC fail or boot loop around 4930 to 4960 mhz. You can quickly validate that by lowering the multiplier again and trying a slightly higher BCLK and see that it was not BCLK causing it, nor multiplier, and when you see that raising the vcore doesn't help in the least, you will have your answer.

Changing the BCLK/multiplier can let you squeeze in a little more mhz, but if you're too close to the wall, you may find strange things happening, like being unable to complete 3D, etc, even with enough vcore...

[aussie-revhead]

fight fight!

lol we are both probably in a que....

[Unoid]

Update from earlier :

x52 at 1.41V on water (almost 80c)

[sfdmalex]

I cant make out my batch number since the sticker was right on the edge of the box where you split it open, however I can make out a D lots of 000 and a 3, might take off the heatsink when the 2nd 570 comes in to check what it is but my chip certainly wants volts for 4800 It's not stable unless I pump a whole 1.465 into it...Any ideas? this seems to be way too much for what the general trend is. I'm on a p8p67 Pro. I dont like running 1.465 through it for obvious reasons, the heat goes into the high 70s low 80s at that voltage and my room is uncomfortably cold. I'm running a Havlik 140mm which is a dual fan 6x heat pipe job which is supposed to cool better then most.

SOLVED
It appears that CPU PLL was causing all the problems with having the need to run high vCore. Since I disabled CPU PLL overvoltage, and lowered the voltage from default 1.8000 to 1.6000 I am able to run lower Vcore Prime stable

I'm not sure what specifically fixed the issue, turning off PLL overvoltage or going from 1.8 to 1.6

I am now able to run at 46x at 1.328 under load in prime, this is a huge improvement, I had to run 1.370 with CPU PLL overvoltage and at the default 1.8 CPU PLL to maintain prime stable 46x before.

I also lowered the load line calibration as it was overcompensating a tad too much. It's at utlra high, anything lower gives a bsod since the volts dip way to low.

So for those with "volt hungry" chips, try turning off the CPU PLL and lower the actual PLL voltage.

[humeyboy]

Never got a reply to my above Q due to some kind of argument going on!

I tested my 2600k tonight and got to 55x Multi (I lowered BLK) before it would fail to boot to Windows, not sure if settings/voltage was limit or if 55x was Max!

Anyhow be on my 2700k in day or so when I can be bothered swapping over!

What was the normal highest Multi for 2600k's or was 55x normal and 58x luck on a good sample?

[aussie-revhead]

There is no normal for 2600k just common and special. Your 55x is not uncommon but plenty won't even do that and a 58x capable CPU is a very good one indeed, there are some that do 59x and few that do 60x.

[Andi64]

I cant make out my batch number since the sticker was right on the edge of the box where you split it open, however I can make out a D lots of 000 and a 3, might take off the heatsink when the 2nd 570 comes in to check what it is but my chip certainly wants volts for 4800 It's not stable unless I pump a whole 1.465 into it...Any ideas? this seems to be way too much for what the general trend is. I'm on a p8p67 Pro. I dont like running 1.465 through it for obvious reasons, the heat goes into the high 70s low 80s at that voltage and my room is uncomfortably cold. I'm running a Havlik 140mm which is a dual fan 6x heat pipe job which is supposed to do cool better then most.

SOLVED
It appears that CPU PLL was causing all the problems with having the need to run high vCore. Since I disabled CPU PLL overvoltage, and lowered the voltage from default 1.8000 to 1.6000 I am able to run lower Vcore Prime stable

I'm not sure what specifically fixed the issue, turning off PLL overvoltage or going from 1.8 to 1.6

I am now able to run at 46x at 1.328 under load in prime, this is a huge improvement, I had to run 1.370 with CPU PLL overvoltage and at the default 1.8 CPU PLL to maintain prime stable 46x before.

I also lowered the load line calibration as it was overcompensating a tad too much. It's at utlra high, anything lowers give a bsod since the volts dip way to low.

So for those with "volt hungry" chips, try turning off the CPU PLL and lower the actual PLL voltage.

Wow, man, you saved me. I couldn't get anything beyond 4.5Ghz, It took 1.39v load to get it stable at that speed and even 1.45v wasn't enough for 4.6Ghz
I though I was stuck at 4.5Ghz, but tonight I finished 6Hs of prime blend at 4.6Ghz with 1.4V and now it passed 30 minutes and counting at 4.7Ghz with 1.428v (66°C / 72°C full load).

All I did was set the CPU PLL to 1.600v, instead of 1.800v. The Internal CPU PLL Overvoltage is enabled. Do you think I could lower the vCore even more without it?

Thanks, I'm starting to like this chip

[humeyboy]

TY, just wanted to test before swapping over as be a shame not to!

[sfdmalex]

Wow, man, you saved me. I couldn't get anything beyond 4.5Ghz, It took 1.39v load to get it stable at that speed and even 1.45v wasn't enough for 4.6Ghz
I though I was stuck at 4.5Ghz, but tonight I finished 6Hs of prime blend at 4.6Ghz with 1.4V and now it passed 30 minutes and counting at 4.7Ghz with 1.428v (66°C / 72°C full load).

All I did was set the CPU PLL to 1.600v, instead of 1.800v. The Internal CPU PLL Overvoltage is enabled. Do you think I could lower the vCore even more without it?

Thanks, I'm starting to like this chip

From the looks of it your chip is behaving very much like my own. In that case you should be able to go down to 1.365 then work your way down. But once again I'm not sure what exactly did it, the CPU PLL overvotalge OFF or the actual CPU PLL voltage (can anyone explain how the two are related?).

Try 1.365, but boost the CPU PLL to 1.63125...because my prime failed after 45min...I'm still working things out, Im trying more cpu pll to see if that caused the crash before I give it a tad more vcore, I would like to stay at 1.34.

[VoodooProphetII]

I'm fairly new to SB processors, or Intel for that matter. I have the following hardware:

Sandy Bridge 2600K
Asus Maximus IV Extreme
2 x 2Gb Corsair Dominator GT 2133Mhz running at 1866 8 8 8 24 timings and 1.65Vdimm

I'm running 4.9Ghz for everyday use at 1.35Vcore with custom air cooling Thermalright 120 Black. I'm able to run 5.2Ghz under WinXP without HT and 1.485vcore bench stable for 3d and 2d. When I try 5.2Ghz under windows 7 it would post and as soon as it starts running windows 7 64bit it would hang either with only an underscore or at the logo screen. I tried up to 1.512Vcore and that is where I'm stuck. What do I need to look at to see if I could go higher. The temps seem to be okay, but the south bridge seems tro be getting fair warm, not hot. I put a custom fan now, but does not seem to change. I tried DICE a couple weeks back, but same story. Any software to use in Windows to change multy or BCLK. Oh I was able to boot into Windows 7 64 bit at 101 x 51 giving me 5151mhz and it is bench stable for 3dmark06, wprime 32m, cinebench 11.5 and SP32m, but no 3dmark11. Any advise would help