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***Official Ivybridge Overclock Thread***

Im doing a build for a mate with the MSI GD65 board as well. Currently doing a long stress test on his 3570Kt at:

4.6Ghz
1.296Vcore
Average temp 72C
 
UPDATE:
stable @ 4.6 GHz
vcore: 1.296/1.304 (flickers slightly in cpuz more the latter though)
LLC: ultra high (found anything less and there was vdroop)
multi: 46

ran 10+ hours prime95 small fft

Temps: 82oC max core... mostly just in high 70's

none of those yellow triangles in event viewer :)

right.... so i have speed step enabled now... it shifts the multi which is good... but with voltage... can i get that to change easily? or is it a case of changing to offset mode, finding what i need to set the offset to so i can get my 1.304/1.296 back and then it will step the voltage up and down? (sounds like a pain in the bum :p )

also i tried going for 4.8.... had to get the voltage up to 1.34 in bios (roughly 1.38 in cpuz).... after many failed boots or boots into windows and then stuff dying while trying to load :p ... but once it was in and kinda stableish... proceeded to run prime and within 2 seconds a warning from AIsuite (thermal radar) came up saying my CPU was at 75oC (think thats the socket not the cpu as realtemp said 87oC) but prime then failed so i called it a day and toned it back down to 4.6 and proceeded to play Diablo 3 all evening without any hiccups :).

so.... how can i try and get my temps down now? reduce the CPU PLL by.1 or .2? see if it's stable? any other suggestions?

might get some springs/washers for the H80 to increase the camping pressure :p looking at the liquid pro TIM also... though i'm a bit worried it will just run out and drip on stuff xD
 
Sasso said:
so.... how can i try and get my temps down now? reduce the CPU PLL by.1 or .2? see if it's stable? any other suggestions?
Click to expand...

Yeah, CPU PLL can go down to 1.5 iirc as long as it stays stable. There's also a few other things you can do to stabalize the OC a bit more so maybe instead of 1.34v you only need 1.32v to get 4.8Ghz stale.

Sasso said:
right.... so i have speed step enabled now... it shifts the multi which is good... but with voltage... can i get that to change easily? or is it a case of changing to offset mode, finding what i need to set the offset to so i can get my 1.304/1.296 back and then it will step the voltage up and down?
Click to expand...

Yes, as the offset uses the boards autovoltage which depends on the CPU's vid you just need to adjust the offset +/- after seeing what the autovoltage goes to under load to get it at the right level and turbo will boost upto the desired clockrate and voltage when under load, or go back down to stock voltage/multiplier when idle.

One of the more complex issues with offset is if you need to undervolt the offset quite a lot such as -0.07v then that also gets taken off when idle so it can become unstable at idle but fine at full load as strange as that sounds.

A good trick around this however is to adjust LLC to compensate, so for isntance you could have it on low LLC and then you would only need -0.05v offset for example to attain the same full load voltage that is required.
 
Krono5 said:
Yeah, CPU PLL can go down to 1.5 iirc as long as it stays stable. There's also a few other things you can do to stabalize the OC a bit more so maybe instead of 1.34v you only need 1.32v to get 4.8Ghz stale.

Yes, as the offset uses the boards autovoltage which depends on the CPU's vid you just need to adjust the offset +/- after seeing what the autovoltage goes to under load to get it at the right level and turbo will boost upto the desired clockrate and voltage when under load, or go back down to stock voltage/multiplier when idle.

One of the more complex issues with offset is if you need to undervolt the offset quite a lot such as -0.07v then that also gets taken off when idle so it can become unstable at idle but fine at full load as strange as that sounds.

A good trick around this however is to adjust LLC to compensate, so for isntance you could have it on low LLC and then you would only need -0.05v offset for example to attain the same full load voltage that is required.
Click to expand...

so like i said... pain in the bum xD

these "things" are they the phase power controls and such to deliver more stable power at the compromise of a bit more NB heat? for example.

will i need turbo mode on or? because well... i disabled it and then changed the mulit and it became greyed out but said enabled(i think).

so starting point for offset would be to take off speed step again, put offset mode on, put offset to 0? and maybe leave the LLC on ultra high just to see when i get in windows? and have turbo on? or..... :p

edit: just found this.. http://www.bit-tech.net/hardware/cpus/2011/01/07/how-to-overclock-the-intel-core-i5-2500k/3

seems pretty useful, could have more detail but is helping me understand some of the other settings a bit more :)
 
Last edited:
Loving my new i7-3770k so far, I think it's a good chip. It's doing 4.7Ghz (HT off for when I'm gaming) at 1.23v. I even got the RAM to 2400mhz, good stuff.

29auvf9.jpg


http://valid.canardpc.com/show_oc.php?id=2378475

i7-3770k @4.7Ghz, 1.23v
Batch #L212B252 from Malaysia
Asus P8Z77-V Deluxe
Corsair H100 + 2x Cougar Vortex fans
Idle at 30-35c, max at 72c on the hottest core

It's been stable for over a week now, with a lot of BF3 action. CPU and RAM current is set to auto, LLC is set to high, along, with spread spectrum, internal PLL overvoltage and VCCIO, PLL and all other voltages on auto.
 
Last edited:
Vincentx said:
snip
Click to expand...
that's awesome!!!!!!

i am very interested in your bios settings, could i trouble you to get some shots of the pages you altered? (i.e. digi+ page, cpu configs etc etc) :)

also so cool! i've said it before but i don't know if i'm getting enough pressure down on the block on my H80 as it seemed too easy to tighten up :p
 
Sasso said:
that's awesome!!!!!!

i am very interested in your bios settings, could i trouble you to get some shots of the pages you altered? (i.e. digi+ page, cpu configs etc etc) :)

also so cool! i've said it before but i don't know if i'm getting enough pressure down on the block on my H80 as it seemed too easy to tighten up :p
Click to expand...

There you go:

http://i50.tinypic.com/et9qgz.jpg

http://i45.tinypic.com/2cpakqs.jpg

http://i49.tinypic.com/24bn234.jpg

http://i49.tinypic.com/359j0hu.jpg

http://i49.tinypic.com/9geamu.jpg

Just remember that everyone's chip will vary, so you may need to even increase the vcore a little bit if it's a no show.
 
Vincentx said:
There you go:
"snip"
Just remember that everyone's chip will vary, so you may need to even increase the vcore a little bit if it's a no show.
Click to expand...

thanks :D just curious more than anything to see what people are doing in more detail :) I'm sure I'll bombard you with questions once i get time to look at them in depth :p
 
Will be glad to help :) Oh and this is also the first Asus board I've owned in like 3 years, as I've been using Gigabyte all the way but I decided to go for a lil' scenery change this time. So far, it's a nice board and all.
 
ay, i swear by asus boards :) this is my 3rd in a long line or upgrades and they have always been solid... though i remember doing the pencil lead mod to one of them to help with vdroop :p
 
Subliminal Aura said:
What do you guys think of this after 6.5 hrs ?
Click to expand...

get the fans on that sabertooth!!!!!, i have the one on the NB blowing in and the one on the back I/O panel as an exhaust. they may be small but they will make the difference. have mine set to turbo, should reduce that 70oC socket temp down a bit ;) i'm also thinking about getting some of those spot fans. one to blow around the socket and another onto the back of my GPU :)
 
bit odd.... with the fixed voltage and speed step it works in windows. but when i tried using the offset and speedstep... it wouldn't clock down :\ plus i am really lost with all the settings haha xD
 
Sasso said:
bit odd.... with the fixed voltage and speed step it works in windows. but when i tried using the offset and speedstep... it wouldn't clock down :\ plus i am really lost with all the settings haha xD
Click to expand...

I enabled all the C states for the CPU. Switches between 1600 and 4400mhz. Will check with a power meter to see if it's worth the effort

Voltage set to auto / tamed up PLL / VTT / LLC and I was benching as low at 1.18V for 4.4ghz. Will get it stable tomorrow
 
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