Those of you with OcUK OEM 2700K Official OC Results thread!!

buzzlightweight · 17 Nov 2011 at 00:31

sorry for the spam i was worried i had a naf cpu, 5GHz i have running at 1.424v which is better than my 2600k.

using prime now and the llc sometimes bumps up the vcore to 1.432 so im gonna work on that but for now im getting a little happier.

axer · 17 Nov 2011 at 00:43

Your board is probably the underlying issue with the voltage stability. A steady 1.4v under load should be sufficent in most circumstances to obtain 5Ghz, thats been my findings anyway.

I've yet to conclude my findings but with the Maximus IV 1.41 in BIOS gives 1.392 to 1.408 when under heady load (e.g. Prime95) which has been fine thus far.

buzzlightweight · 17 Nov 2011 at 06:55

could an issue with my board cause random bsods?

axer · 17 Nov 2011 at 08:32

What temps are you getting under load with that vcore?

qbazdz · 17 Nov 2011 at 09:12

Lower your RAM to 1600MHz and try then.
Those SB seem to have a problem hitting 5GHz with higher freq ram.
Still quite strange that you were able to do it with the 2600K easily and not now...

gareth170 · 17 Nov 2011 at 10:09

qbazdz said:
Still quite strange that you were able to do it with the 2600K easily and not now...

maybe degraded quick

buzzlightweight · 17 Nov 2011 at 10:41

axer said:
What temps are you getting under load with that vcore?

60 degrees

qbazdz said:
Lower your RAM to 1600MHz and try then.
Those SB seem to have a problem hitting 5GHz with higher freq ram.
Still quite strange that you were able to do it with the 2600K easily and not now...

I will have a go when I get in

gareth170 said:
maybe degraded quick

What my 2700k!!!!!!!

gareth170 · 17 Nov 2011 at 10:47

buzzlightweight said:
What my 2700k!!!!!!!

afew people have reported on this forum that they chip as degrade after only one week with a high oc.

buzzlightweight · 17 Nov 2011 at 11:13

Omg it's one day old! Is there a way I can test it? And as for a high OC this chip has not seen more than 1.43 volts! I will do some tests at home after work

bulldog147 · 17 Nov 2011 at 14:52

You can test it by downloading Intel Processor Diagnostic Tool as this will tell you if your current cpu had degraded or not.

555BUK · 17 Nov 2011 at 15:50

Other than for benching and e-peen, is there really any point in overclocking SB i7's past 4.5GHz? If not, why bother upgrading from 2600K to 2700K, or buying a 2700K over a 2600K?

Upgrades within the same product line seem like a complete waste of time, effort and money to me. Especially as both processors are unlocked and share the exact same architecture, cache etc.

buzzlightweight · 17 Nov 2011 at 17:34

bulldog147 said:
You can test it by downloading Intel Processor Diagnostic Tool as this will tell you if your current cpu had degraded or not.

thanks for that, as i hoped it did pass with flying colours. im going to buy a new mobo and see what happens (sameone) if that works then the other is going back!

bulldog147 · 17 Nov 2011 at 19:04

My i7 2600K retail overclocked 5.0GHz @ 1.48v for 4 months and failed Intel Processor Diagnostic Tool mean degraded.

My current i7 2600K oem overclocked 4.6GHz @ 1.34v for 5 months and passed Intel Processor Diagnostic Tool mean no degrading at all.

Dantian · 17 Nov 2011 at 19:14

What mobo's are you guys who are getting 4.8+ using, Z68 or P67??

bulldog147 · 17 Nov 2011 at 19:27

Dantian said:
What mobo's are you guys who are getting 4.8+ using, Z68 or P67??

It will degrading anyway because 4.8GHz+ is more voltages over 1.35v. Intel say kept it below 1.35v or will get degrading quickly.

mmj_uk · 17 Nov 2011 at 20:37

buzzlightweight said:
could an issue with my board cause random bsods?

Have you tried lowering your memory?

Dantian said:
What mobo's are you guys who are getting 4.8+ using, Z68 or P67??

A few of us are using ASRock Extreme 4 Gen 3 (Z68).

fowler002 · 17 Nov 2011 at 22:22

555BUK said:
Other than for benching and e-peen, is there really any point in overclocking SB i7's past 4.5GHz? If not, why bother upgrading from 2600K to 2700K, or buying a 2700K over a 2600K?

Upgrades within the same product line seem like a complete waste of time, effort and money to me. Especially as both processors are unlocked and share the exact same architecture, cache etc.

fair enough point on why upgrade from i2600k to i2700k, but for those buying new ocuk currently have the

i2600k oem £248 no free game
i2700k oem £250 free bf3

i2600k retail £255 no free game
i2700k oem £262 free bf3

now tell me if you were buying into sandybridge now which would you go for?

Bluntwrapped · 18 Nov 2011 at 16:20

fowler002 said:
fair enough point on why upgrade from i2600k to i2700k, but for those buying new ocuk currently have the

i2600k oem £248 no free game
i2700k oem £250 free bf3

i2600k retail £255 no free game
i2700k oem £262 free bf3

now tell me if you were buying into sandybridge now which would you go for?

OEM 2700k and sell BF3 = cheap 2700k

Bluntwrapped · 18 Nov 2011 at 16:26

bulldog147 said:
It will degrading anyway because 4.8GHz+ is more voltages over 1.35v. Intel say kept it below 1.35v or will get degrading quickly.

Hmm.. if this is true why would OCuk post this? Maybe the degrading is from the memory voltage being set too high? If you look at Intel's specs they actually rate the 2500-2700k at around 1.5v max

***OVERCLOCKING GUIDELINES***

- Do not exceed 1.425v core voltage, doing so could limit lifespan of the CPU
- Aim to keep temperatures below 70c underload if at all possible
- Do not overclock with BCLK, again doing so could limit lifespan of the CPU
- Recommended memory voltage is 1.50v, so make sure to run your memory at 1.50v, higher than 1.60v could limit lifespan of the CPU
- These recommendations come from OcUK and Intel, your warranty is un-affected but we highly recommend you adhere to the above to make sure your CPU lifespan is un-affected
- All Sandybridge CPU's worldwide should be run at the above or lower voltages, no higher!

fowler002 · 18 Nov 2011 at 16:51

Bluntwrapped said:
Hmm.. if this is true why would OCuk post this? Maybe the degrading is from the memory voltage being set too high? If you look at Intel's specs they actually rate the 2500-2700k at around 1.5v max

***OVERCLOCKING GUIDELINES***

- Do not exceed 1.425v core voltage, doing so could limit lifespan of the CPU
- Aim to keep temperatures below 70c underload if at all possible
- Do not overclock with BCLK, again doing so could limit lifespan of the CPU
- Recommended memory voltage is 1.50v, so make sure to run your memory at 1.50v, higher than 1.60v could limit lifespan of the CPU
- These recommendations come from OcUK and Intel, your warranty is un-affected but we highly recommend you adhere to the above to make sure your CPU lifespan is un-affected
- All Sandybridge CPU's worldwide should be run at the above or lower voltages, no higher!

CPU vcore 1.425v its the RAM voltage which is 1.5v (don't confuse this with the CPU vcore).