Intel Core i5 & i7 Sandy Bridge Overclocking and Feedback

[PaulieG]

2x4 eh? Isn't that a bit easier on the board? I'm sticking to 4x2 in prep for ivy and quad channel.

Possibly less stress on the board, but in general 4GB sticks are not going to overclock as well as 2GB sticks...though these Redlines are really nice. I'm thinking of picking up another set for Ivy Bridge.

 

[LAN_deRf_HA]

Is there a good program for reading the full sub-timings on sandy? Other than taking a pic of your bios... Might be useful to compare chips that are running high and chips that aren't, might see if there's some setting in particular holding people back.

 

[da20valve]

2600k

And what magic motherboard are you using for this? It must be one that automatically enables ppl overvoltage which is something I have yet to encounter. If it doesn't, you must have gotten a magic batch for all of those.... because that basically contradicts the experiences of every user I've encountered. Highest I've seen stable for auto is 4.4ghz, and it can be a pretty epic fight for that extra 400mhz. Are you stability testing these?

stability testing of course, you dont need to do any of that shit you listed above, just update your bios to the latest version disable turbo and all the rest of the fluff.
, Set multi to 48 and it should work, you dont need to set really anything in the bios apart from the Multi on the Asus boards, i know for a fact that the P8H67-M-LE-V3 are shit, you cant set the multi only the turbo multi, Wich sucks Ballz,(DONT GET THIS BOARD) Get the Asus P8P67-V3 or the Gigabyte GA-P67A-UD3P-B3, no need to get the UD4 or UD5 your wasting your money. IF all you do is set the multi to 48 and disable Turbo. You system should run fine at 4.8Ghz and wprime at around 170s. Trust me i build atleast 3 of these EVERY WEEK and there ALL overclocked. BTW if your not getting higher clocks when raising the Voltage to above 1.7 FORGET ABOUT IT, the extra 200 or so Mhz you will get wont be worth the heat. The difference between 4.7, 4.8 and 5.0Ghz is NOTHING and will only be noticable when running benchmarks in Windows you couldnt tell the difference between the three. IF anyone needs help or is looking to build a 2600K use the information i have listed above and get one of the boards mentioned, also if your looking for a cooler no need to get water or H70, get a Freezer 7 Pro Rev.2 or if you want something really good get a Frio, But its unnecessary 1155 run cool anyway.

 

[LagunaX]

You must be using the Asus auto function that adjusts the voltages accordingly, these chips do not do 4.8ghz on stock volts for linX or P95 stability.
The majority of 17-2600k's need 1.32v-1.36v for 4.8ghz linX/P95 stability.
I5-2500k's fare a little worse, 1.35-1.40v for 4.8ghz linX/P95 stability.
Referenced here for a batch overclock list:
http://www.xtremesystems.org/forums/showthread.php?t=265269
SANDY BRIDGE FPO BATCH LIST FROM XS FORUMS

2500K
Batch Stable speed Vcore used Motherboard bios Cooling Used
L036B120 4500 1,275 Asus P8P67 Pro 1053 watercooling HK 3.0 Kinglex
L036B120 4700 1,452 Gigabyte P67A-UD4 F6X Air Ayttacaksel
L036B120 4500 1,328 Asus P8P67 Pro 1053 Air Ripper18
L038A789 4200 1,3 Asus P8P67 Pro 1053 Xigmatek Air cooler Leeghoofd
L038A789 4400 1,288 Asus P8P67 Dlx 1003 Corsair H70 Leeghoofd
L038A789 4700 1,38 MSI P67A-GD65 1.8B6 Air Prolimatech Kuziu
L039B120 5000 1,392 Gigabyte P67A-UD4 F7f Air Scythe Ninja 3 Digg.de
L040B671 4800 1,385 Asus P8P67 Dlx 1204 Air VenomousX LagunaX
L040B671 5000 1,45 Asus P8P67 Pro watercooling Coolhandluke41
L041B517 5000 1,445 Gigabyte P67A-UD5 Air cooling C-N
L041B564 4600 1,42 Asrock P67 Pro3 Air Sonic Tower Chukundur
L041B789 5000 1,424 Asrock P67 Extreme 4 P1.50 Air Cyan1d3
L041C123 5000 1,336 Asrock P67 Pro P1.50 True Black PnP PolRoger
L041C124 5000 1,33 Asrock P67 Extreme 4 P1.20 Air Alex -Ro
L042B144 5000 1,38 Asrock P67 Extreme 6 Air 3dsag3
L045A951 4800 1,35 Asrock P67 Extreme 4 Air ClockZ
L046B582 5000 1,46 Asrock P67 Extreme 6 Watercooling Beast2000
L047B217 5000 1,45 Asrock P67 Pro3 P1.70 Watercooling Dnottis
L048A952 4500 1,24 Air R3sy4
L049A796 4600 1,272 MSI P67A-GD65 Roadie
L049A796 4800 1,32 Asus P8P67 Watercooling Jumper2high
L050A863 5300 1,52 Asus P8P67 WS Watercooling Ace.
L050A864 4600 1,272 Gigabyte P67A-UD4 Watercooling GeorgeVasil



2600K
Batch Stable speed Vcore used Motherboard bios Cooling Used User
L038A660 5000 1,4 P8P67 Dlx 1053 Thermalright Venomous X CrossG
L038A660 5088 1,428 Gigabyte P67A-UD7 Watercooling Skeyo
L039B214 4800 1,35 Asus P8P67 Dlx 1053 Thermalright TRUE 120 Orion123
L039B214 4700 1,395 Gigabyte UD4 F6X Air Zalman UgotD8
L039B470 4500 1,28 Asus P8P67 Dlx 1053 Corsair H70 Leeghoofd
L039B470 5000 1,456 MSI P67A-GD65 1.8B5 Watercooling EK HF block BulluS
L040B165 5254 1,512 Asus P8P67 Pro Watercooling SBB
L040B165 4500 1,27 Asus P8P67 Dlx 1204 Air Silver Arrow Sam Oslo
L040B208 5000 1,37 Gigabyte P67A-UD5 F6A watercooling Flesheatinvirus
L040B208 5000 1,44 Asus P8P67 Pro Watercooling Simpletech
L040B208 4800 1,335 Asus P8P67 Dlx 1053 Air Prolimatech Zoob
L040B307 5000 1,416 Asus M4E 675 Air Prolimatech Chrish
L040B307 5000 1,344 Gigabyte P67A-UD7 F6X Beatle
L040B307 5000 1,37 MSI P67A-GD65 V1.8B6 watercooling Swiftech Apogee XT Klaata
L040B671 5100 1,48 Asus P8P67 Pro Watercooling Coolhandluke41
L040B689 4500 1,305 Gigabyte P67A-UD7 F6X watercooling OC_Nub
L040B694 5100 1,488 Asus P8P67 Pro Chilled Water Donmarkoni
L040B698 4900 1,432 Asus P8P67 Pro Air Poke349
L040B705 4700 1,448 Asus P8P67 M Pro 414 Air VenomX DVS
L040B705 5100 1,48 Gigabyte P67A-UD3P F6A Air Jonesey
L041C106 5076 1,456 Asus P8P67 Evo Air Augidogie
L041C106 5000 1,336 Asrock P67 Pro Air PolRoger
L041C108 4900 1,36 Asus P8P67 Air VenomousX LagunaX
L041C108 5000 1,404 Gigabyte P67A-UD7 Air Cooling Nijel
L041B798 4851 1,44 Maximus IV extreme 951 Watercooling Csktl1
L041B213 5000 1,45 Gigabyte P67A-UD7 Watercooling Tnc99
L041B213 5000 1,448 Asus P8P67 Dlx Watercooling Famich
L041B200 4700 1,29 Asrock Extreme 6 P1,40 Air Scythe Ninja DjLeco
L041B202 4900 1,476 Gigabyte P67A-UD7 F6X watercooling Owikh84
L041B741 4888 1,4 Gigabyte P67A-UD7 F7e watercooling Swiftech Apogee XT Nostromo
L042A969 5151 1,596 Biostart P67XE Watercooling Porn43
L042B047 4800 1,288 MSI P67A-GD65 1.6 Air Blackoberst
L042B074 5100 1,464 Asrock Extreme6 Air Prolimatech Olivon
L042B074 5000 1,32 Asus P8P67 Pro 1053 Air Prolimatech Kuba_TM
L042B074 5000 1,365 MSI P67A-GD65 1.8B6 Air Noctua NH D14 Blackoberst
L042B076 5000 1,38 Asus Maximus 4 Extreme 88 Prolimatech Chrisch
L042B076 4600 1,28 Asus P8P67 Corsair H50 Dami3n
L042B076 5343 1,6 Gigabyte P67A-UD7 Watercooling Newhit
L042B076 5100 1,425 Asus Maximus 4 Extreme Stoned
L042B076 5302 1,51 Gigabyte P67A-UD4 Watercooling Yoshimura
L042B208 5100 1,5 Asus P8P67 Dlx Watercooling DaddyJaxx
L042B208 5000 1,488 Asus P8P67 Pro Air cooling Loud Silence
L042B243 5000 1,5 Asus P8P67 Dlx Watercooling Dragonhunter
L042B243 5000 1,52 Asus Maximus 4 Extreme Watercooling The Nemesis
L044B441 5000 1,424 Asus P8P67 Dlx Air Thermalright Venomous CrossG
L045A912 4800 1,408 Asrock P67 Pro 3 1,7 watercooling Dnottis
L045B005 5000 1,44 Gigabyte P67A-UD5 Single Stage Ikozarov
L045B021 4800 1,428 Gigabyte P67A-UD7 F7E Watercooling Andresergio
L046B509 4900 1,5 Gigabyte P67A-UD3P F6A Watercooling Marc Beier
L047B217 5300 1,568 Asus P8P67 WS Watercooling Ace
L048A937 5100 1,512 Asus Maximus 4 Extreme 951 Watercooling Owikh84
L050A854 4500 1,248 Gigabyte P67A-UD7 F7E Air Noctua NH D14 Vanjara
L050A864 5000 1,368 Gigabyte P67A-UD5 Watercooling C-N
L051B145 4500 1,264 Asus Maximus 4 Extreme 901 Air Prolimatech Rabor

 

[LAN_deRf_HA]

stability testing of course, you dont need to do any of that shit you listed above, just update your bios to the latest version disable turbo and all the rest of the fluff.
, Set multi to 48 and it should work, you dont need to set really anything in the bios apart from the Multi on the Asus boards, i know for a fact that the P8H67-M-LE-V3 are shit, you cant set the multi only the turbo multi, Wich sucks Ballz,(DONT GET THIS BOARD) Get the Asus P8P67-V3 or the Gigabyte GA-P67A-UD3P-B3, no need to get the UD4 or UD5 your wasting your money. IF all you do is set the multi to 48 and disable Turbo. You system should run fine at 4.8Ghz and wprime at around 170s. Trust me i build atleast 3 of these EVERY WEEK and there ALL overclocked. BTW if your not getting higher clocks when raising the Voltage to above 1.7 FORGET ABOUT IT, the extra 200 or so Mhz you will get wont be worth the heat. The difference between 4.7, 4.8 and 5.0Ghz is NOTHING and will only be noticable when running benchmarks in Windows you couldnt tell the difference between the three. IF anyone needs help or is looking to build a 2600K use the information i have listed above and get one of the boards mentioned, also if your looking for a cooler no need to get water or H70, get a Freezer 7 Pro Rev.2 or if you want something really good get a Frio, But its unnecessary 1155 run cool anyway.

I can tell you no amount of vcore will make my chip boot at 4.8ghz. PLL must be enabled. I am not aware of any board that handles that automatically.

 

[da20valve]

I can tell you no amount of vcore will make my chip boot at 4.8ghz. PLL must be enabled. I am not aware of any board that handles that automatically.

Im pretty sure your Asus board is the same as the LE board i mentioned earlier, Can you adjust the Multi or just the Turbo Multi on your board ?. Any of the new B3 boards have the PLL set to auto from standard, Well the UD3R B3, UD3P B3 and the Asus P8P67 B3 do anyway. As for the 2500k they need a little more voltage to overclock all the 2500k's i have done i have had to set the voltage to 1.35-1.4v to get 4.6-4.7Ghz out of them, dont know why its just the way they are

 

[Undead46]

I got the i7-2600K (Batch: L045B011) and I'm awaiting for my ASUS P8P67 WS Revolution MoBo to arrive until I can power this bad boy up.

But from what I've read, I have an OC limit of 5.1GHz at 1.5V so that's pretty good.

I'll probably put er' at 4.8 24/7.

 

[PaulieG]

I got the i7-2600K (Batch: L045B011) and I'm awaiting for my ASUS P8P67 WS Revolution MoBo to arrive until I can power this bad boy up.

But from what I've read, I have an OC limit of 5.1GHz at 1.5V so that's pretty good.

I'll probably put er' at 4.8 24/7.

These chips are all different. I wouldn't count on what you've read to determine your overclock. Just use proven methods and see what you end up with. I've got 2 higher binned 2600k coming probably today and tomorrow. Can't wait to see what I can squeeze out of them.

 

[LAN_deRf_HA]

Im pretty sure your Asus board is the same as the LE board i mentioned earlier, Can you adjust the Multi or just the Turbo Multi on your board ?. Any of the new B3 boards have the PLL set to auto from standard, Well the UD3R B3, UD3P B3 and the Asus P8P67 B3 do anyway. As for the 2500k they need a little more voltage to overclock all the 2500k's i have done i have had to set the voltage to 1.35-1.4v to get 4.6-4.7Ghz out of them, dont know why its just the way they are

The LE is insanely crippled options wise compared to the rest of the P8P67 line. Just doing the regular multi you can go to 38x, only allows you to use the turbo for higher. And yes I know it's set to auto by default, but most of the boards don't actually have an auto rule for pll. Auto just equals off. Same for spread spectrum. My 2600k seems to need 1.37v to hit 4.6 ghz low load stable, and that's with the new much more voltage stable B3 board.

 

[CyberCT]

I overclocked my 2500k yesterday for the first time since building my new computer three weeks ago. I'm still using the stock cooler but my Coolermaster Hyper 212+ just came in the mail so it will be going on soon. With just the stock crappy cooler, I was able to run Prime95 for an hour without any issues. I'm at 4.1GHz right now with a vcore setting in BIOS of 1.255v. Pretty sweet.

The temps are the limit right now but once the new cooler is on, I'm going to see how high I can push it. It will be a daily overclock, so I don't want to go much past 1.3v for every day use.

I'm using the MSI P67GD65 motherboard. I have noticed a performance increase in games such as GTA IV with this overclock so far.

 

[CyberCT]

I just ran Prime95 for an hour at 4.2GHz, same voltage 1.255v. Completely stable.

 

[Undead46]

These chips are all different. I wouldn't count on what you've read to determine your overclock. Just use proven methods and see what you end up with. I've got 2 higher binned 2600k coming probably today and tomorrow. Can't wait to see what I can squeeze out of them.

I based what I read off my specific batch number.

 

[PaulieG]

I based what I read off my specific batch number.

Many people get frustrated doing this too. I owned nearly 2 dozen Core i7 920 chips, 3 of which were from the same batch. None of them clocked the same. Though I do admit, it may increase your chances slightly...just don't expect your results to be the same because it's from a particular batch.

 

[da20valve]

CPUZ + Batch numbers

I tend to agree in the old days the batch numbers meant everything, these days they mean SHIT, As i have said in the past i have overclocked so many 2600k's and they are all react different (even from the same batch) these days they just produce a shitload of cpu's the good ones get K the other ones get the non K and have the multi removed, Also with the new B3 boards CPUZ 1.57 doesnt seem to display the voltage correctly so if you are overclocking and its saying something like 1.086 THATS NOT THE VOLTAGE, re check it in the bios, Also i have noticed past few days i have had to add PLL voltage (1.9v total) to chips to get them to overclock to 4.8Ghz, dont know if its the new B3 boards or the 2600k itself. Tomorrow i am gonna overclock a 2600k to 4.8ghz on the new B3 then swap the chip in a non B3 board, See if i can work it out. Seems like a waste of time i know but and just curious to see if its the chip or the board.

 

[Frizz]

My i5 2500k is stable @4.5ghz with 1.390 vcore (Still crashing with 0x124 BSOD @ 1.375 unless given sufficient vcore increase), there are people who need 1.4 and up for the same clocks so we clearly haven't seen the worst just yet, although I am glad to be moving to a 2600k chip that has been pre-binned.

I am using profile 1 for my RAM 1600mhz // 9-9-9-24 and it seems to be going strong at 1.560 volts. Anyone have a clue as to when CPU-Z will start reading the correct vcore voltages for Gigabyte UDx Mobos or i5 2500k CPUs?

 

[PaulieG]

Just received this chip today. Pretty nice so far...

 

[cadaveca]

temps are really good, what is cooling?

 

[PaulieG]

temps are really good, what is cooling?

Thermalright Venomous X with MX-4. Dual Slipstream 1450's. I think it's the best air cooler out right now. It kills my Mega and Arma. I've seen reviews where it is equal to the Noctua D14 w/load temps, but it's significantly smaller.

 

[brandonwh64]

hmmm by the looks of this, i may sell one of my I7 920 setups for a 2600K

 

[LAN_deRf_HA]

Thermalright Venomous X with MX-4. Dual Slipstream 1450's. I think it's the best air cooler out right now. It kills my Mega and Arma. I've seen reviews where it is equal to the Noctua D14 w/load temps, but it's significantly smaller.

I believe the Archon is a small step up from the venom. On that note when I switched to my B3 board I swapped paste to gelid GC-extreme. Very nice temp drop vs OCZ freeze with the same easy spreadability. I'd say 3-4c.

 

[PaulieG]

I believe the Archon is a small step up from the venom. On that note when I switched to my B3 board I swapped paste to gelid GC-extreme. Very nice temp drop vs OCZ freeze with the same easy spreadability. I'd say 3-4c.

The Archon is possibly 1-2c cooler, but I don't like having to run 140mm fans. Does the Archon allow dual fan configuration? I can't remember. I had a bunch of Gelid paste given to me free from a rep last year. Cooled well, but I hated the way it spread. It's really think, right? My favorite is still the Noctua NT-H1 paste, with the MX-4 a close second.

Edit: This chip is the best of the 3 2600k's I've tested...by far.

 

[LAN_deRf_HA]

The archon does support dual fans. All of gelid's pastes have had a different consistency. GC-extreme is the same consistency as OCZ freeze and AS5. I'd say it's the best performing of the easy spread, no cur time pastes... and tpu recommended as well.

 

[PaulieG]

The archon does support dual fans. All of gelid's pastes have had a different consistency. GC-extreme is the same consistency as OCZ freeze and AS5. I'd say it's the best performing of the easy spread, no cur time pastes... and tpu recommended as well.

I'll have to give it a try. Just checked, and what I had was GC-2. It came with a little plastic spreader. I was not a big fan of OCZ freeze.

 

[da20valve]

Cooler

Get the Thermaltake Fro its easily the best aircooler.

 

[da20valve]

Just received this chip today. Pretty nice so far...

http://img.techpowerup.org/110323/new_2600KOC.png

Did you just do the Multi and turn off Turbo ?.