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

[PolRoger]

i "envy" all of you , i just got the following 2600k, and have to w8 ~10days for a B3 mainboard...

Some of the L041Cxxx batch(s) have produced some nice clocking chips (even though there can be both strong and weak in each batch). Yours is the first I've seen ending with ...236 so I look forward to seeing your results.

[Peter949]

I got the same batch and 5ghz needs 1.42v+ for 8hr prime stable. So I stayed at 4.8ghz also.

Been working on this one for a while, I got 4.8ghz down to 1.36v but 5ghz is still a mystery. I can get IBT and Lynx to go just fine but prime gives me a random restart every time.
Batch#: L042B291

[ante_ante]

I replace my 2600K and wanted to try a 2500K this time. No tweaking at all.
1.36v set in bios. Dont care about the timings, i can press it down to 7-7-7-20 1T and that should do something in S-pi

Batch: L041C124



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[Elmy]

Batch # L041C106

5.0 GHZ stable at 1.47 but not anything lower.

Can bench at 52X but not 53X but I can boot @ 53X



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[Peter949]

Wow I thought those C chips were mostly sexy. Too much volts for 5ghz.

[aznsniper911]

How much voltage is too much volts for air cooling? Right now I am able to get my 2600k(L042B243) with 1.5V for 5ghz and 1.525 for 5.2ghz.

[Peter949]

I wouldn't be do 1.5 for 5ghz when you can do 4.7-9 for less then 1.4v.

[aussie-revhead]

Wow I thought those C chips were mostly sexy. Too much volts for 5ghz.

Yeah same here, I guess that myth just got destroyed .....

[FlanK3r]

My new 2600K batch L042B074 boot up's with multi 56x, and stable 5GHz frequency requires only 1.35v!
As you can see from temps that's aircooled with Prolimatech Super Mega.

hm, the same as LINX "bug", very low GFloops for 5 GHz..
but still good, hope, u are still AMD man

[ante_ante]

Another quick S-pi test and finally broke my 7s in S-pi.
L041C124



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Tried to boot at x56 but it just reset to x33. Any tips what i can do to try boot over x55 ?

[PolRoger]

Yeah same here, I guess that myth just got destroyed .....

SB seems to have both stronger and weaker in every batch... although some batch(s) seem to be a little more consistent than others.

I tested three from ...C106

~ VID

1@ 1.250v
1@ 1.245v
1@ 1.210v

I've been holding on to the 1.210v sample... seems to boot 54x but not 55x
and I'm not sure where/what the max bclk frequency is for it?

http://www.xtremesystems.org/forums/...postcount=1539

Another quick S-pi test and finally broke my 7s in S-pi.
L041C124



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Tried to boot at x56 but it just reset to x33. Any tips what i can do to try boot over x55 ?

another nice ...C124 sample...

High multi (bootable) chips 56x(+) are pretty rare and randomly chip dependent.

If bumping vcore doesn't help with booting 56x then you may be able to get to 5.6 range via bclk.

[Dumo]

Sweet spots for gem 2600K are 54X and 55X, it needs BCLK 107+ and 105+ respectively to compete with 980X @ >6Ghz. Then again rams should be able to run @ high BCLK
56X and 57X are those 2500/2600K that are 5.8+Giger

[LagunaX]

Got really tired of the problem resuming from S3 sleep with Internal PLL Overvoltage on for 4.9ghz with 1.36v set in bios, 1.4v load under linX.

Currently settling for 4.8ghz with PLL off so the S3 resume from sleep doesn't require a hard power off ond restart:



Internal PLL Overvoltage: Off
Memory Frequency: DDR3-2133mhz
Load-Line Calibration: Extreme
VRM: Auto
Phase Control: Extreme
Duty Control: T.Probe
CPU Current Capability: 110%
CPU Voltage: 1.32v

Vcore 1.32v set in bios, ranges 1.32v idle to 1.36v max under linX,

[ugotd8]

Got really tired of the problem resuming from S3 sleep with Internal PLL Overvoltage on for 4.9ghz with 1.36v set in bios, 1.4v load under linX.

Currently settling for 4.8ghz with PLL off so the S3 resume from sleep doesn't require a hard power off ond restart:
...

Internal PLL Overvoltage: Off
Memory Frequency: DDR3-2133mhz
Load-Line Calibration: Extreme
VRM: Auto
Phase Control: Extreme
Duty Control: T.Probe
CPU Current Capability: 110%
CPU Voltage: 1.32v

Vcore 1.32v set in bios, ranges 1.32v idle to 1.36v max under linX,

That is just a really nice OC... very nice.

Any changes to VCCIO, VCCSA or PCH ? Also, I assume it's win7 with SP1 & AVX on linX ?

[LagunaX]

Oh yeah, other specs:
i7-2600k L041C108 S/N: 2L043107A4661
Asus P8P67 Bios 1305 on air cooling Venomous-X 2 fans (can probably drop a fan on 4.8ghz...)
Win 7 SP1 x64 with AVX
$79.99 G.Skill F3-12800CL6D-4GBXH (2x2GB) 1.5v @ DDR3 2133 CL7 1.6v!
http://www.xtremesystems.org/forums/...d.php?t=266839
No other changes in VCCIO, VCCA, PCH, or any other major thing in the overclocking section.

Haven't had time but got an i5-2500k L041C123 I'm going to drop in soon to see if i can get higher with PLL Overvoltage off...

[aussie-revhead]

Does anyone know a store that has these- 2600k L041C108

[Unrealer]

2500K L046B079T

5Ghz
Prime95 Small FFTs: 6:40h
Frecuency: 50x100
LLC: High
Offset: +0.100
Vcore max.: 1.44v
Temp. max.: 60-64-66-64




4.8Ghz
Prime95 Blend: 10:02h
Frecuency: 48x100
LLC: Ultra High
Offset: +0.015
Vcore: 1.36-1.38v
Temp. max: 55-59-60-58 (21º ambient temp.)

more...


5.1Ghz
Prime95 Blend: 10:32h
Frecuency: 51x100
LLC: High
Offset: +0.150
Vcore: 1.48-1.49v
Temp. max: 61-65-67-65 (18º ambient temp.)







And Gflops at 5Ghz:

Core i7 2500k@5.0GHz - 125,00Gflops

[5746]

I'm going to pickup some 2500k and 2600k at Microcenter , Any one here have experience with batch code number lately at MC ?

[jcniest5]

I'm going to pickup some 2500k and 2600k at Microcenter , Any one here have experience with batch code number lately at MC ?

Which MC? At the Twin Cities/Saint Louis Park, MN, there are four batches currently available: L040B305, L042B208/243 and L050A853. Neither of these are great OCers, by the way. I have the L050A853 and it seems to be the better among them. But then again, it could just be my crappy board. Who knows since I don't have two boards to compare, I really don't know.

[C-N]

Think its just random luck guys, I have a L050A864 & its a champ

Runs 100BCLK 0.01v lower on 2 cores & .025v higher for 4 cores

[PolRoger]

I'm going to pickup some 2500k and 2600k at Microcenter , Any one here have experience with batch code number lately at MC ?

Which MC? At the Twin Cities/Saint Louis Park, MN, there are four batches currently available: L040B305, L042B208/243 and L050A853. Neither of these are great OCers, by the way. I have the L050A853 and it seems to be the better among them. But then again, it could just be my crappy board. Who knows since I don't have two boards to compare, I really don't know.

I've tested a few of the L050A853 and some of them are quite decent but as with most SB batch(s) there is both stronger and weaker samples out there.

I would consider that batch if it were available at your MC... also another decent batch that may still be at some MC is the L041C108 batch.

[aussie-revhead]

Has anyone tried an L040B705 ?

[5746]

I've tested a few of the L050A853 and some of them are quite decent but as with most SB batch(s) there is both stronger and weaker samples out there.

I would consider that batch if it were available at your MC... also another decent batch that may still be at some MC is the L041C108 batch.

Thanks you ! I will try when I go to MC Santa Clara.

By the way , If any one have 2500k or 2600k which can run at 55X or more FOR SALE , PLEASE PM ME

[aussie-revhead]

lol I posted WTB for decent 2600K but no bites, I think they are that hard to get that anyone with one will hold on to it.

[flesheatinvirus]

Many of us here have gone through many chips before getting one that really cranks beyond multi 55 so yes we tend to want to keep them around.