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***Official Ivybridge Overclock Thread***

ok this new bios layout is confusing as hell to me xD

but set the vCore to 1.125 and multi to 43, ram at its default 1600...

running prime now and temps are sub 60 :) although the voltage says 1.144... that's not what i asked for xD
 
Ahah don't worry about the voltage it does that. The CPU doesn't use 100% of the voltage you let it have at one time :) personally I have LLC set to 1. So my voltage barely drops.
 
also i brought up the asus AIsuite.... the temps seem all wrong.... says my cpu is at 40oC o.O????

was thinking about running the Asus Auto Tune on extreme and just seeing what it would give me :p but seeing as that takes temp into account also... not sure how happy i am as the suite reads 20oC cooler?!?!

edit: just looked and there isnt auto tune for the sabertooth board xD oh well :p
 
Are people using offset or fixed voltage? I'm 4.4ghz stable at 1.24v fixed and had a go at offset voltage earlier. With an offset of -0.05 it was pulling 1.26v under load in linx. Despite pulling 0.02v more under load, it passed linx but returned WHEA system log errors, whereas fixed vcore at 1.24v didn't. Anyone else had similar experiences with offset vcore?
 
I've been doing some overclocking today with my new i5 setup.

i5 3570k
Asus P8Z77-V
Corsair Vengeance LP 8GB DDR3 1600MHz 9-9-9-24 @1.5v
Corsair H60 CPU cooler

So far I have managed to run Intel Burn Test on "Very High" with 10 passes at 4.5GHz with CPU voltage at 1.185 in the BIOS (RAM running at stock). Haven't tried the voltage lower yet as I'm sick of running the tests :p

Temps got to 86 degrees though...
 
ok so push it up to 4.6 now (multi 46) have load line calibration to extreme (not sure about this :p ) volts fixed to 1.25 ran intelburntest on v.high for 10 passes and passed :) (seems like the load line calibration on extreme is adding 0.046v for droop.... might be a bit excessive? might try just putting the profile to auto or a lower setting)

temps.... well low/high 80's... though realtemp reports one core touching up to 91 but when i was watching i didn't see them go above 88. (idling in high 20's-low 30's)

op678g.jpg


so this is starting to cook a bit.... would like to try for a little bit more but not sure what i can do about the temps. i read that you can lower the CPU PLL voltage and that can help slightly with temps?

i don;t want the temps to get any higher really but not sure what other options there are for me... dunno whether it's worth trying to reseat the H80 or maybe adding a washer to each screw to give it a little more downwards pressure as it did seem to be rather easy to max out the thread screwing it down.

(edit: going to run prime in large fft for a while to get max temp in that <<<edit again as i put blend by accident :P )
 
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Hi,
What i'd love to know is.....

My 2500k at 4.5ghz got 120 gflops in ibt.
3770k at 4.5ghz in a z77 system is only getting around 105 gflops.
3770k at 4.5ghz with HT off gets 123 gflops max.

Just what is going on, do i have a less powerfull cpu with ht on?

This is with 4 threads or 8, alittle less around 97 with 4.

Seems a shame to spend more money and feel i have less.
 
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so far on the large fft test (almost 30 mins in) and the temps are 10 degrees cooler than they were in intelburntest :p
 
Sasso said:
seems like the load line calibration on extreme is adding 0.046v for droop.... might be a bit excessive?
Click to expand...

There's an article on another site (can't remember of the top of my head where) with an Ivy Bridge overclocking guide. It said that extreme wasn't necessary unless under LN2. Not sure what your board is but on my Gigabyte I set mine to turbo which is 1 under extreme and the droop is minimal but doesn't overvolt. Tested this with a multimeter too.
 
The problem I found with setting LLC to overvolt on load, is that it would then make idle unstable and I would get random crashes occasionally when not doing anything.
 
AndyH_Lufc said:
There's an article on another site (can't remember of the top of my head where) with an Ivy Bridge overclocking guide. It said that extreme wasn't necessary unless under LN2. Not sure what your board is but on my Gigabyte I set mine to turbo which is 1 under extreme and the droop is minimal but doesn't overvolt. Tested this with a multimeter too.
Click to expand...

ah cheers i have the Z77 sabertooth :cool:



to google!
 
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