• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

***Official Ivybridge Overclock Thread***

skyjawa said:
Wow thats a lot of heat! !
Click to expand...
Is it? I think Buckster earlier reported 62W at idle and 150W on load at wall socket at 4.3Ghz for 91C which seems not a lot of power. The difference between heat and temperature and been mentioned before and is probably worth getting to grips with in understanding Ivy Bridge.

Has anyone measured the effectiveness of air coolers on Ivy? If the heat is not being efficiently rermoved leading to higher temps is there any practical difference in having an upper range instead of mid range model? Is fan speed showing a difference? Do they help increase max clocks or stability?
 
jwsg said:
Is it? I think Buckster earlier reported 62W at idle and 150W on load at wall socket at 4.3Ghz for 91C which seems not a lot of power. The difference between heat and temperature and been mentioned before and is probably worth getting to grips with in understanding Ivy Bridge.

Has anyone measured the effectiveness of air coolers on Ivy? If the heat is not being efficiently rermoved leading to higher temps is there any practical difference in having an upper range instead of mid range model? Is fan speed showing a difference? Do they help increase max clocks or stability?
Click to expand...

agreed - my Noctua heatsink was warm but not hot

I figured for Ivy I'd prob not see much difference Noctua 12 vs the NHD-14 - but I'd have more space with the 12 ...

I think we just live with the fact that these processors get hot overclocked - very hot - but they are VERY efficient power wise.

I see it - that if its stable in small AVX prime - no matter the temps (as long as we don't get silly and >101C say)- then you can feel pretty confident that it'll be stable in anything you throw at it

just imagine the potential overclocking if they didn't get so hot though ! :)
 
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
 
skyjawa said:
Mines with Small FFT's - whats AVX?
Click to expand...
If I'm not mistaken AVX are additional vector instructions that make certain types of computations (simultaneously on multiple data items) more efficient.

It can be argued that if a benchmark program only uses a subset of a processor's features then it's only using a subset of its transistors and is therefore only partially stressing the CPU. Real-world applications may not show 100% CPU load but may use just as much power. The extra with an i7 that gains the HT logic and extra cache shows this kind of effect.
 
Well the newer version definately makes a difference!! I had BSOD after a couple of minutes, needed to up my llc to level 3 and now it seems stable again.

Interestingly the newer version of Prime defo stresses the cpu more, my temps have risen a couple of degrees. Max 80 on core2 but seem to sit around low to mid 70's with core4 being very cool at under 70 most of the time!

I seem to need a lot less volts than your screeny Buckster - have you tried lowering it a bit?

Clipboard03-1.jpg
 
Just to say that I flashed the bios on my motherboard and it dropped stock voltage from 1.182 to 1.096. So, I would advise everyone to make sure they have the latest version of their bios. It only took me this long to do this because ASUS automatic update wouldn't work for me so i had to download the bios manually and install.

Hopefully this gives me a bit more headroom.

Currently it is nicely stable at stock volts running at 4ghz turbo. Big difference in energy, performance and even heat compared to my Q6600 running at 3.5 @ 1.44v!
 
skyjawa said:
I was the same Ollie, 1.2 would get me to windows, with a sluggish login appearing then would BSOD. Since we're running the same mobo and nears as dammit coolers I'm sure we'll find we're very similar in what we can achieve!
Click to expand...

Well I have my 4.3Ghz stable at the lowest possible voltage if your interested ^.^ my 4.5Ghz needs some work but Im yet to fiddle around with it today since I literally just woke up. Also having LLC on level 1 has made getting stable at lower volts a lot easier also I think my temps dropped since I don't have to have such high volts to stay stable now.
 
There seems to be a pattern emerging that a) you don't need the same cooling as SB as the power consumption is less for the same real performance and b) you might not benefit anyway as IB is not keen in giving up its heat.
 
skyjawa said:
Wow thats a lot of heat! I'm running my 3770 at 4500 with 1.25 volts (drops to 1.176 ish on load) and I don't get temps go over 75!
Click to expand...

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
 
You must log in or register to reply here.
Back
Top Bottom