***Official Ivybridge Overclock Thread***

[Buckster]

Buck do you have LLC on the highest setting or disabled? having it disabled makes being stable at lower volts a lot easier tbh.

at highest setting atm - haven'[t thought about lowering it - which mobo are you on ? I'm on a MVG

its amazing that 2 tiny tiny volts adjustments can have a 10C delta difference i temps

PLL volts seems to have a good difference too (I think I'm on 1.6 manual vs 1.85 Auto ...)

my MVG sets a substantial offset voltage for IGPU - I think 0.15V .. I reduced this to 0.05 but not sure why its over-volting gpu or whether it effects clocks/temps

 

[Ollie1132]

Asrock extreme6. I turned LLC off and went from 1.25V to 1.15V stable at 4.3Ghz. Dropped about 6C as well.

 

[Flakey]

So thinking it was my dodgey mount I reseated my cooler before, managed to increase my temps 3c. Probably got a hotish chip, although its nowhere near as bad as some others! Probably going to have to settle at 4.6 for 24/7. Shame, could have had 4.7 but its impossible to keep it cool.

Going to try one last remount I think

 

[covenantuk]

one thing I have REALLY noticed is my boot times - ok new windows build - but we're talking after bios post (which takes about 4 seconds) about 6-7 seconds max !

also with this Gene Z board it takes a lot to get it to fail to boot - its very resiliant

Same on the Gigabyte Z77 board, boot to a useable desktop is ridiculously fast. The Win7 colours don;t even get to finish their splash animation properly.

 

[Ollie1132]

So I now have two profiles saved that are prime stable ^.^ one at 4.3Ghz with 1.12V (currently in use) and one at 4.5Ghz with 1.24V. I would push for 4.7/4.8 but maybe sometime late next week instead of right now would be better.

 

[Buckster]

I've got similar Ollie

can anyone explain LLC to me please ? I don't really see much difference in

(1) setting a manual slightly higher Vcore in the bios and setting LLC to low or off

vs

(2) setting a lower Vcore in bios and setting LLC to high

seems to equate to the same thing when you place a load on the CPU ?

 

[Buckster]

I've got similar Ollie

can anyone explain LLC to me please ? I don't really see much difference in

(1) setting a manual slightly higher Vcore in the bios and setting LLC to low or off

vs

(2) setting a lower Vcore in bios and setting LLC to high

seems to equate to the same thing when you place a load on the CPU ?

4.3 is a nice place to be at very low volts I'm there with 1.125 in bios (1.16 under load)

 

[Ollie1132]

yeah it is Ill be glad once I sort my heatsink out. Im tempted to turn off HT till I need it so I can run higher clocks day to day

 

[the_director]

The clock speeds seem pretty impressive given the low voltage, which suggests that Ivy is real progress...

 

[Ollie1132]

My idle temps at 4.3/4.5 are below 40(4.3Ghz) just breaking the 40 point(4.5Ghz).. it's really nice if Im honest.

 

[skyjawa]

what a difference - just dropped volts to 1.248 and 4.4 instead of 1.268 and 4.5

also reduced PLL volts a bit

so 100mhz less and tiny less volts - max temp 84 vs 94

Nice one

I've got similar Ollie

can anyone explain LLC to me please ? I don't really see much difference in

(1) setting a manual slightly higher Vcore in the bios and setting LLC to low or off

vs

(2) setting a lower Vcore in bios and setting LLC to high

seems to equate to the same thing when you place a load on the CPU ?

This is exactly what I've been thinking. There seems little in it between setting higher volts with LLC, or lower volts with LLC at a minimum, I haven't played with it yet but Ollie seems to have had some success with the latter.

My idle temps at 4.3/4.5 are below 40(4.3Ghz) just breaking the 40 point(4.5Ghz).. it's really nice if Im honest.

Get that K2 reseated mate, my idle temps aren't above 30 (ok so maybe 30-31 on core 3 at worst) in any circumstance of cpu speed, typing now at 4.5 with 24 26 30 27. Likewise tho, liking this chip, nice upgrade from a Q6600!

 

[Ollie1132]

Ahah Ive ordered some IC Diamond should be here tuesday got to get some stuff to remove the old gunk then it'll be a reseat and a hope like hell that my chip isn't just a hot one xD

 

[Doop!]

My idle temps at 4.3/4.5 are below 40(4.3Ghz) just breaking the 40 point(4.5Ghz).. it's really nice if Im honest.

One of my cores dropped to 9 degrees over night!

 

[Krono5]

I've got similar Ollie

can anyone explain LLC to me please ? I don't really see much difference in

(1) setting a manual slightly higher Vcore in the bios and setting LLC to low or off

vs

(2) setting a lower Vcore in bios and setting LLC to high

seems to equate to the same thing when you place a load on the CPU ?

More or less, except that a higher Vcore is the same all the time (unless in offset mode etc), where as with LLC it's only compensating for Vdroop so adjusts the ratio between idle and load voltage so you can finely tune both of them.

 

[somewhatdamaged]

Seem to have hit the limit on my 3770K

4.6Ghz @ 1.27v

Prime95 small ffts hitting 85 degrees

I dont think the chip will go any higher. Either a **** chip, or Ivy bridge really is a terrible overclocker

 

[subbytna]

Is 4.6 not good enough for you? Think about it, or maybe you're a bit young, years ago we(I) used to be happy with hitting 3.0 on the old pentiums...4.6 is a great overclock and you'll not notice anything more in real life applications getting to 4.8 apart from heat and a larger leccy bill

 

[mmj_uk]

If a 4.6ghz Ivy is as fast as a 4.9ghz Sandy it's not so bad.

The only drawback I see is the insane temps when overclocked like 90C etc, come the summer heat people are going to struggle to keep them from reaching the TJMAX when under stress.

 

[crinkleshoes]

Seem to have hit the limit on my 3770K

4.6Ghz @ 1.27v

Prime95 small ffts hitting 85 degrees

I dont think the chip will go any higher. Either a **** chip, or Ivy bridge really is a terrible overclocker

If I read your sig right... that's under water?

I get better temps than that at this frequency with a slightly higher voltage (1.29) with a Corsair H100... I think you might benefit from re-seating the CPU block and/or re-applying TIM.

 

[hyperst]

If a 4.6ghz Ivy is as fast as a 4.9ghz Sandy it's not so bad.

The only drawback I see is the insane temps like 90C etc, come the summer heat people are going to struggle to keep them from reaching the TJMAX.

That's the thing a few have forgotten about, come summer these 85c+ over clocks are going to struggle

 

[Moeks]

Is 4.6 not good enough for you? Think about it, or maybe you're a bit young, years ago we(I) used to be happy with hitting 3.0 on the old pentiums...4.6 is a great overclock and you'll not notice anything more in real life applications getting to 4.8 apart from heat and a larger leccy bill

It really doesn't seem like so long ago that we were clocking our Celerons from 300-400Mhz ...and some people even managed 500Mhz. This was the first chip you could really see 'big' overclocks on, I say big as in a percentage of the stock clock speed. Prior to that you were typically talking about overclocks in double figures not triple, and then later on with the Athlons ...all of them right up to the A64 era you were lucky to see more than about 300Mhz tops, which was a much smaller percentage of the chips total clock speed than with the original Celerons.

I remember overclocking a Pentium 133 to 166Mhz (iirc), that was really quite good then too.

The landscape changes, some chips allow for huge overclocks, others do not. We might have another one again in the future that does.

You did need those high clock speeds with the P4's for them to stand a chance against the A64's.