***Official Ivybridge Overclock Thread***

[demon8991]

I've been running the blend test at 4.6GHz - 1.3V for 20 minutes and it's maxing at 70 degrees so far. Is small FFT more stressful?

Following on from my problems with throttling when using the ASUS AI suite II, I have just now tried overclocking to 4.6GHz USING BIOS and the problem with throttling is no longer there. I may have done something using the ASUS software which is limiting the amount of power to the CPU. Does anyone know what it may be?

Yes small FFT is the best test to do if you want to stress your CPU as it puts much more work through it rather than a mixture of ram as well.

You may find your system is unstable under Small FFT with higher temps which may require you to tweak things a bit more. Its a much better test for making sure the CPU is as stable as possible.

 

[Ollie1132]

Hm so for one I can't disable my Turbo settings in BIOS :/ and two Ive disable C3/C6 state as well as C1E what other powersaving stuff do I have to get rid of? Also my core temps are all over the place.. :/

 

[G-Sharp]

Anybody know why my clocks are being throttled when I go past 4.4Ghz using the Asus AI Suite II, while I don't have this problem when overclocking using Bios? Is anybody familiar with the program and what may be causing the throttling and how I can stop it from happening?

 

[somewhatdamaged]

Got my 2700K to 5Ghz max temps 70 degrees, managed my 3770K to 4.5 - max temps 75 degrees

I'm guessing the higher clock speed of the 2700K trumps the improved performance of the lower clocked Ivy...

 

[Born_2_Kill_83]

what motherboard you using ?

Asus P8Z77-V

 

[RounD]

For some reason 46x is working now and I've got 4.6GHz
Temps 72c but my second core seems to run 5c hotter which matches other peoples findings.
4.7GHz is stable but the second core temperature hits 81c which I'm not comfortable with so I think I'll stick with a 24/7 clock of 4.6GHz.
Cooler is silent under normal usage and barely audible at 100% load in prime so overall very happy with my new system

 

[P3N9U1N]

For some reason 46x is working now and I've got 4.6GHz
Temps 72c but my second core seems to run 5c hotter which matches other peoples findings.
4.7GHz is stable but the second core temperature hits 81c which I'm not comfortable with so I think I'll stick with a 24/7 clock of 4.6GHz.
Cooler is silent under normal usage and barely audible at 100% load in prime so overall very happy with my new system

What cooler are you using?

edit: read you sig

Thats not bad for air cooling. Can't wait to get my 3770k in my custom loop and see what happens

 

[RounD]

What cooler are you using?

Be Quiet Dark Rock Advanced.

 

[Born_2_Kill_83]

Good chips IMO.
Getting 4.9/5.0 is completely impossible on air (Noctua NH D14), Ive got a nice stable 4.8 now with temps touching around 80c on prime for 3 hours mostly hanging around low 70's though.

On stock cooler I was struggling to go over 4.2, so its worth spending the coins on a cooler if you want this chip.

Its been money well spent on a nice increase over the i7 920@ 4GHZ, Im now GPU limited on a 6990 (never thought I would say that) in Heaven V2.1, moving from an average 66FPS to touching 100FPS with the 3770k (normal tessellation). 3D mark 11 has shot up and so has BF3.

Cant see why people where being so harsh on it, nice achievable overclocking which compaired with an X58 MB was really easy to do.

 

[Doop!]

I've noticed my coolest core when idle is the one that gets hottest under load. Is that normal?

At idle it's often about half the temp of the hottest, but always gets a couple of degrees hotter at full load.

 

[hanluc]

Here's mine @4.6Ghz, cooled on a custom loop with a triple Rad. I seem to have one core 5c higher than the rest, which has peaked at 78c after 3Hrs of prime, I re-applied the TIM but it made no difference. Temps are very poor considering the cooling, I ran an x58 board on this loop with an 980x, I could feel the heat coming from the Rad, and the tubing got warm under stress, now it's all cool, this chip doesn't seem to dissipate heat very well.

Spoiler

This overclock is rock solid for me now, I let it run and it did 12hrs of prime no errors, also 20 runs of IBT no errors and the hottest core was only 1c higher than prime at 79c, considering the TJmax is 5c higher than SB I'm taking that as an indication that it can run that much hotter (whether it's true or not )
Overall I'm pleased.

 

[Dandle]

This was my latest attempt. [email protected] in the bios (bounces between 1.152v and 1.162v in cpuz under load). Tried at 1.165v and it failed so upped it. Will try BF3 later and prime again for longer.

Sorry if the pic is a bit big. Will re size later if its an issue.

 

[skyjawa]

Just started playing myself but impressed that without any change to voltage I can get 4.4ghz!!!

 

[Ollie1132]

Im on 4.3Ghz at stock voltage thus far ^.^ getting really bad temps cause my heatsink needs to be reseated.

 

[skyjawa]

My temps at 4.4 average around 58-65 depending on core, 2 is the hottest. Max is 68 on core 2. Thats with a Silver Arrow.

 

[Ollie1132]

Mine at 4.3Ghz (completely due to the need of reseating my K2) sits around 70~ degrees.

 

[skyjawa]

Its not far off, prob 5-10 degrees higher than it could be, I noticed at 4.0 is was around 55, max 60, 4.4 rose about 5-10 deg.

 

[Ollie1132]

From 4.2-4.3Ghz I went up 3C from 4-4.2Ghz went up 10C. Hopefully a reseat would take it down quite a lot.

 

[mattf]

got mine to 4.6 at 1.176 volts hour and a bit prime 95, run BF3 and some other apps highest temp so far 78

how long should I prime for? I have never really gone for a proper OC before always used bios based auto clocks

 

[Ollie1132]

I usually run prime for about 30mins to an hour using small FFT's. So far it's worked but I think some people run it for a lot longer than an hour sometimes.