2500K/Batch# L045A951.....seem's good, running at 4.8@1.35 on AsRock Extreme4. right around 50c load temps running prime 95 large FFT's.
http://i148.photobucket.com/albums/s...lockZ2500K.png
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2500K/Batch# L045A951.....seem's good, running at 4.8@1.35 on AsRock Extreme4. right around 50c load temps running prime 95 large FFT's.
http://i148.photobucket.com/albums/s...lockZ2500K.png
I don't know either, but you may want to check for throttling or something else.
I did a quick 1 pass test in XP, with "normal" (700mb) and I got 56 gflops, at 4 ghz at 100x40 and HT off.
You're getting less than half that at 25% higher clocks and HT on...
Pretty sure even my qx9650 was getting higher at 4g...definitely want to check...
Core i5-2500K Batch L050A863 5.3Ghz
http://www.abload.de/thumb/5.3ghz1.544vcoreacecimd.jpg
Guys, Im up :banana::banana::banana::banana: creek, three local stores only have L051A964 so it seems to be the current batch here so what do I do? Get one? Keep looking for better? What is OCUK shipping atm?
How about some low voltage SB clocking...
http://i695.photobucket.com/albums/v...zlowvolts2.png
Is that supposed to be 4.5GHz? If so you can probably use a lot less voltage than that. Try 1.25-1.28v.
My 2500k has a max multi of 63x, but getting it 110% rock solid stable above 4.65GHz takes quite a bit of voltage.. not worth the extra heat IMO.
Ket 63x multi is impossible, highest i've seen is 58x and thats on the 2600k with phase change cooling.. If anyone can reach 63x ill dress up as a girl and you can treat me like a rag doll hahaha :)
very nice PolRoger, I love low volt overclocks, it a shame these cpus vary so much within the same batches. Im looking for one now but good looking ones are hard to find.
:up:
I had 63x with 1.43A ( or, I think it was 1.43A. Done a lot of flashing last few days) and max multi was indeed 63x. I can show you a screen of the current 1.5 UEFI I'm using and a 60x multi though.
Yeah it is. Your screenshot is fubar I can't read the numbers in CPUz in that SS and I'm sitting at a 22" monitor right now, yes the numbers are THAT small :p:
Turning it up a bit batch# L045A951....seem's to need 1.4 under load for a stable 5ghz.
http://i148.photobucket.com/albums/s...ockZ5ghz14.png
You deserve a cookie for 5GHz on only 1.4v :up:
Nice:up:
If it passed 55X wall then good chance it will cruise at >56X:)...It doesn't matter 2500K or 2600K
http://img707.imageshack.us/img707/9...nshot212yh.jpg
How good would it be to work in a computer store right now? Quickly test every K going out - if its good you pocket it and chuck another one in ..... :rofl:
Dumo - did you get one with the same batch as PolRoger? ... lucky bugger ....
:up:
The same batch a-r:)
Its not guaranteed though...even with the same batch, but at least I have some base batch to look for:)
It only took a few minutes out of the box, install it and boot @ 54X. If it stuck at blinking cursor then is a no go.....boot up to windows then a good chance it will go higher multies:D
Yeah the hard part is getting access to piles of 2600K's .....
:)
Yep, even my L04B243 S/N XXXA1174 can run 32m @58X, but it was at 99.7 BCLK though. If it can go with >100 BCLK and finished all 3Ds then probly its a real gem
I have heard that L042B076 is one of the best, Is that true? If so then i'm very lucky :D
I think I'm gonna stop trying to find a golden batch for the moment. It seems like my motherboard is the culprit of not being to OC any of my 2600Ks (L040B305, L042B208 and L042B243) past the 5Ghz ceiling. It seems they all max at that speed. I will check regularly at the local MC and see if any of those golden batches that have been mentioned around here show up there. If one shows up, I might grab it. I actually want to order an Asus Maximus IV Extreme from one of the Candanian stores, but they aren't shipping to the US. I really wish they do. Maybe a Canadian friend can help me obtain one. Otherwise, I will wait until April or May when things are back to full swing again.
I think they are more busy trying to make us new motherboards :rolleyes:
Do you think Intel knows which ones are the good ones and which ones arent, so they just sit back and laugh at us until we work it out?
:(
You know they do, Dr.Who is trying his best to not stop in here and give us any hints :D
So you reckon they have no idea which ones will be good and which ones wont? Just send them out and see what happens?
...
No, I meant I'm sure they do know what batch or other spec is the good ones, and they probably have plenty of those held back too!
... hmmmm maybe saving them for 2700K? Same thing but twice the price ?
:clap:
Nah. Intel probably hold the real golden chips back as their cherry picked samples and ship out "all the rest".
This Intel-batch-business is a tricky-one each time, but we are going to crack it, soon or later.
Intel has total control and a strict QA. These variation in OC-headroom is not a random one, either by die-peace or other stuff. Intel decides to tap good chips and they do it for a short while, and they know where to find it, with total control.
They seams to have changed to a new trick in this round, those rare C-batch# seams to be replacing the good B-batch# from last round.
Has anyone seen C chips in their local store?
:up:
Microcenter in Westbury NY USA...Grabbed a L041C108-1499 on Friday. Just like the L039B214-XXXX I have boots 54 out of the box at 1.48v. Only tinkered but it does the exact same thing on the Asrock Extreme6 as the L039B. 55 multi blinky cursor lol :rofl: It does (C Batch) however run 32m at 5.4 1.425v BIOS set Vdimm and vtt~.5 difference rest AUTO. The B batch takes a bit more voltage. Shame with the recall I'd love to test it on a better board/bios but that will have to wait I suppose...
Everybody who has clung to their P67 like a vice has to wait ATM. Won't see any movement on the UEFI front from any of the manufacturers until after the chinese holiday at least. We may even be left out in the cold completely until the re-launch of P67 boards :down:
When does that Chinese new-year holiday ends?
At least at my local 3 Micro Centers 2600K and 2500K sale still going strong (even without any P67 mobo on the shelf)
On the week of 1/29 most of their inventory were batches L042BXXX and L050AXXX. Just last night all were L041Cs
Woops...It was a 2600K.
My 2600K L041C108 from MC won't go >52. 52 boots to windows @1.4V, but 53 and up is a no go. Got 53 up to 1.62V and it froze in bios. 54 can't even boot. Is it the chip, is it the board (UD7), is it me...?:brick:
Hope it's the board.
24/7 LinX AVX stable 4.7@1.32V.
And BTW this batch already have seen 58xx GHz with x59 @1.6xV somwhere else.
Interesting, so they are suddenly bringing out many C-batches out of the magic hat now?
If I may speculate a bit, Intel tend to bring out good batches whenever they want to push the marked for more sales. They did it with w3565 (If I remember the model# eight) last round. They kept some good week-48-batch# in storage for over 1 year and used it in w3565 to push new sales, in last round.
Based on these speculative logic, Intel may be trying to regain some marked that has been shattered by failing MBs. Anyways, I hope we can see more of these C-batches in action soon.
^^ damn 1.44 to get 4.8ghz? really?
Will any German stores ship overseas?
:)
Hehe,you'll need a special delivery from Mars at the end of the world :D
2600k Batch#: L040B165
Repost. I've posted this in ASUS thread too, but posting here for Batch#-recored too.
Just a little 30-min Prime-run @4.5GHz, still testing, nothing final yet. So fa so good.
@4.5GHz 1.27v 30-min Prime small FFT :)
http://img.techpowerup.org/110207/Capture015671.jpg
Hey man take a look at this site, all Prices from Germany in €
http://geizhals.at/deutschland/?a=58...v=l#filterform
Another german Batch L036B125T testet with H2O, Kryos XT, Water 28°c
4,2
http://www.abload.de/image.php?img=42ami6.jpg
4,6
http://www.abload.de/image.php?img=46o7z0.png
4,7
http://www.abload.de/image.php?img=47z7jw.png
4,8
http://www.abload.de/image.php?img=4817mg.png
other results and batches, watercooling...
- * 2600k|5402Mhz|1,512|54|100|1333Mhz|GB UD4|Wakü|L040B307|Boxed|
- * 2600k|5400Mhz|1,544|54|100|1333Mhz|P8P67D|Wakü|L04 1B230|Boxed|
- * 2600k|5301Mhz|1,524|54|100|2134Mhz|GB UD4|Wakü|L041B230|Boxed|
- * 2600k|5217Mhz|1,554|53|100|1600Mhz|P8P67D|Wakü|L04 0B307|Boxed|
- * 2600k|5201Mhz|1,524|52|100|1600Mhz|GB P67A-UD5|Wakü|L42B074|Boxed|
- * 2600k|5215Mhz|1,572|52|100|1337Mhz|GB UD4|Wakü|L040B165|Boxed|
- * 2600k|5117Mhz|1,520|51|100|1333Mhz|P8P67D|Wakü|L04 0B165|Boxed|
- * 2600k|5001Mhz|1,344|50|100|2133Mhz|M4E|Wakü|L040B3 07|Boxed|
- * 2600k|5001Mhz|1,356|50|100|1333Mhz|GB UD7|Wakü|L047A898|Boxed|
- * 2600k|5000Mhz|1,376|50|100|1600Mhz|Asus P8P67 Evo|Wakü|L042B076|Boxed|
- * 2600k|5000Mhz|1,384|50|100|1866Mhz|Asus Maximus IV Extreme|Wakü|L042B074|Boxed|
- * 2600k|5000Mhz|1,408|50|100|1333Mhz|ASUS P8P67 PRO|Wakü|L041B230|Boxed|
- *
- 2600k|5007Mhz|1,432|40|100|1600Mhz|P8P67D|WaküL040 B165|Boxed|
- * 2600k|5000Mhz|1,380|50|100|1600Mhz|GB UD7|Wakü|L042B074|Boxed|
- * 2600k|5000Mhz|1,408|50|100|1600Mhz|M4E|Wakü|L042A0 76|Boxed|
- * 2600k|4901Mhz|1,356|49|100|1333Mhz|GB UD7|Wakü|L040B165|Boxed|
- * 2600k|4900Mhz|1,416|49|100|1333Mhz|ASUS P8P67 Evo|Wakü|L040B307|Boxed|
- * 2600k|4805Mhz|1,380|48|100|1333Mhz|GB UD5|Wakü|L040B165|Boxed|
- * 2600k|4801Mhz|1,332|48|100|1600Mhz|GB UD3P|Wakü|L040B076|Boxed|
- * 2600k|4800Mhz|1,404|48|100|1333Mhz|GB UD5|Wakü|L040B225|Boxed|
- * 2600k|4700Mhz|1,360|47|100|1600Mhz|ASUS P8P67|Wakü|L040B307|Boxed|
- * 2600K|4600MHz|1,288|46|100|1333MHz|ASUS P8P67 Deluxe|Wakü|L042B076|Boxed|
- *2600k|4500Mhz|1,210|45|100|1600Mhz|P8P67Pro|Wakü| L041B230|Boxed|
- * 2600k|4500Mhz|1,216|45|100|1600Mhz|Asus P8P67 Deluxe|Wakü|L040B307|Boxed|
- * 2600k|4500Mhz|1,288|45|100|1866Mhz|AsusP8P67Deluxe |Wakü|L040B225|Boxed|
- * 2600K|4500Mhz|1,296|45|100|1600Mhz|GB UD5|Wakü|L040B225|Boxed|
- * 2600k|4500Mhz|1,296|45|100|1600Mhz|P8P67 EVO|Wakü[28C]|L036B125T|Boxed|
- * 2600K|4490Mhz|1,332|45|100|1600Mhz|GB UD4|Wakü|L040B225|Boxed|
Thanks, I have sent some emails.
:)
Hey Hardy Hardcore buddy :welcome:
@ PolRoger
Test with the new Prime 26.4 or 26.5 not with the old one 25.11;)
http://www.abload.de/thumb/cpu-zydae.jpg
http://www.abload.de/thumb/linxace3df2.jpg
any one see this one i looked but i could not find
L042B243
nice list !
Hey guys... I just picked up a L041C108 as well... Waiting on a few parts then I'm throwing it together tomorrow night. I'll let ya know what kind of O/C results I get.
Anyone else with a L041C108?
Where are you guys buying these chips where you can try them and then return them?
I started to doubt that same batch of SB will perform similiar...after testing a few of them.
Then again my goal is to find one that can go high in multi and freq.....stricly for benching and not for 24/7 stability, low Vcore on air
For now all we can do is keep looking until we found one that fit our specific needs....either for raw high mhz benching power or smooth low power efficiency 24/7 kinda rig
A dejavu:)...http://www.xtremesystems.org/forums/...highlight=dumo
FWIW the 2500k I bought ~3 weeks ago is C-batch, L041C119. Takes 1.54V Vcore to hit 5.2GHz (not stable).
Someone earlier posted 4.5GHz with 1.2V, this one seems nearer 4.1GHz at that Vcore. :(
At 1.2V seems okay for Linx @4.2GHz
http://i1181.photobucket.com/albums/...th_42_Linp.png
But Prime with same settings above using less power and lower temp fails @4.1GHz.
http://i1181.photobucket.com/albums/...1_Prime264.png
yo :up:
So what does? Wouldnt it be good to know....
:)
I thought they said last 4 of the Serial mean more than batch?
Just the combination of Batch and Serial is saying a bit...
What's the key with Serial then? I see low serial give low max multi/bclk and higher serial giving low bclk/multi too within any given batch, so either way still seems like a crapshoot?
And then trying to find best batch and serial, no way without knowing what's what :cussing: And that's if there really is any what's what to it all :shrug: :hitself:
I wish Dr.Who would at least be kind enough to give us a few hints, couldn't hurt him or Intel any I wouldn't think. Anyone chat with him via PM, ask him if he'll stop by and give us some pointers :D
Many of the good chips i have seen so far have a s/n with last 4 digits in ~ 1000-1200 range. Not saying this means anything, i just noticed it.
LOL, I knew this would get tricky, but this is getting really tricky now. Anybody would volunteer to make a "Sandy Bridge s/n list" ? :rofl:
Just picked up a 2600K batch "L044B441". First time I've seen a L044. Hope it's not a dud.
I agree, any two chips can be very different in peak and manners within the same batch.
I've made note of serial numbers when looking at different batch(s) and even for chips within the same batch it still seems to me that the o.c. results are quite random.
Absolutely, it is really not a great indicator as a batch produced from any area within the wafer can display drastically different ability. I have had same batch chips that acted very different at high speeds not to mention major load temp differences, hot and cold chips and non consistent voltage requirements at a set speed. The search for the golden chip continues.
4.8 @ 1.34 volts only made 14 passes tho then blue screened more vcore for sure.
http://www.overclock.net/attachments...ub-4.89ghz.jpg
Flesh,
I wonder if "hot and cold" chips have to do with the quality/solder of the IHS? (But no one has been brave enough to try removing one ever since the failures with core i7's...)
Whats up Quad. More vcore no doubt. How do you like the P8P67 and what ram are you running?
What batch Quad?
:)
[QUOTE=Falkentyne;4739058]Flesh,
I wonder if "hot and cold" chips have to do with the quality/solder of the IHS? (But no one has been brave enough to try removing one ever since the failures with core i7's...)[/Q Good point and I am sure there is some truth to that, I remember those daz.:D There are so many potential variables in play here with there current design that can effect surface radiation of heat plus the board socket and block clamp design of certain hardware just adds to the fire. I want a board socket mount made from perhaps a granite surface plate.:cool:
I've had 2x B and 2x C and C is much better for 24/7 clock needs about .05V less for same clock.
Why are most of these new batches such duds compared to the earlier batches?
This seems like Core 2 Duo and Penryn all over again...