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~~~~~IMPORTANT SANDYBRIDGE OC INFO: Voltages & OC Guide!!~~~~~
- Thread starter Gibbo
- Start date
Yeah mine is set to auto for everything except the BCLK at 100 and the turbo at 46 oh and and the DDR at 1333. The only thing that I needed was the lastest Asus beta bios 1053 as without that could not boot at 4.4 ghz and over.
It automatically gives it enough voltage to be stable. Very clever.
You should really run small ffts to test the max temp as blend can take hours to reach it. Also Intel Burn Test can get the CPU temp even higher. Anyway there is nothing wrong with 72C I ran mine up to 79C @ 4ghz 1.240v before I got this awesome Akasa Venom! best £ 35 I ever spent.
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Linx and prime blend had the same temps when I had the stock cooler. I'll run small ffts after my blend run is done to have a look.
With the stock cooler my peak temp was 77c
By the way you are running Speedfan which gives inaccurate temps, your temps are a lot higher then 50C try running Coretemp which is what I use and is accurate.
Basically you have to add about 15C to speedfan to get the right temp on quad core cpus.
Ah I see thanks for that.
But wait that would mean my original temps on the stock cooler would be damn close to 90clol
Yup! but do not worry these things can take a beating, I ran my old Q6600 up to about 89C once on stock cooling it did it no harm. I would not feel comfortable running over 80C now.
I'm tempted to gun for 4.5/4.6ghz still but currently 1.31vcore in bios and I've seen it shoot to 1.336 in windows
When I was stuck on 4.3 I was pleased with that but what Todge said about not being able to boot Windows at 4.6 stuck in my mind so I went back over the thread and found he had updated to beta BIOS 1053 and was then able to boot at 4.6.
It appears he was able to boot at 4.4 and 4.5 with the original BIOS which I was unable to do so I was not sure if the BIOS update would work but it did and then I was able to boot at 4.4 4.5 and 4.6.
Have you updated the BIOS on your Asus board as you might need to do that to hit 4.6. You need to do it from a FAT drive so if your main HD is NTFS you will need to use a usb flash device or ext hard drive formatted to FAT.
I'm still on the stock bios at the moment as it seems to be working smoothly right now. Just trying to make sure it's rock solid at 4.4ghz before I try anything new.
My multiplier dropped down to 16x during prime yesterday which was weird though and all was normal after a reboot.
My multiplier dropped down to 16x during prime yesterday which was weird though and all was normal after a reboot.
An important question that might concern quite a few people.
Are these the values you see in CPU-Z whilst running a Prime test or the values you enter in your BIOS?
Would be more than important to know I guess.
Thanks in advance, also for this thread and the warning
Cheers,
An important question that might concern quite a few people.
Are these the values you see in CPU-Z whilst running a Prime test or the values you enter in your BIOS?
Would be more than important to know I guess.
Thanks in advance, also for this thread and the warning
Cheers,
Voltage as reported by CPU-Z I think, that is the true voltage and can be lower then BIOS due to vdroop unless you have Load Line Calibration set.
Anyway I do not see the need to set voltages manually, certainly on this Asus board it adjusts the voltage automatically to what is needed for a particular clock.
I guess on auto you get to keep the non turbo voltage which is nice too.
That is handy, but if you don't at least keep an eye on it when first setting your clock i'd imagine you could be in trouble. IE. if you just went into the bios, set the clock to 5ghz i'm sure it would boot and probably play games just fine. But it could well be sticking a lot more through it that we believe is safe.
As long as you have check that the max voltage is within limits then running on auto should be fine.
I believe there is an option to run offset voltage which also allows you to have the benefits of both worlds but i've not fiddled!
Yesterday i ran a small test and set the voltage to auto and booted at 4.5. The voltage readout was about 0.01 higher than my personal set voltage of 1.31.
The key difference is that on auto, the Asus tools said the CPU was using about 7w at idle. On my pre set setting it said it was using about 18-20w at idle.
Something I should have asked earlier - Are these recommendations for maximum voltage settings in bios or maximum measured/reported by CPU-z?
Im currently at 4.7Ghz, not quite 100% stable just yet but my vcore on MSI P67A-GD65 is 1.305v set in bios, but under load, with vdroop control set at "low" I hit upto 1.368v reported in CPU-z.
Im thinking im about my limit for now, temperatures are well controlled with an H50 + 2x 120mm fans in push/pull, but Im very wary of the voltages given reports of dead cpu's not to mention the hugely unpredictable nature of the Asus board prior to this one.
Im currently at 4.7Ghz, not quite 100% stable just yet but my vcore on MSI P67A-GD65 is 1.305v set in bios, but under load, with vdroop control set at "low" I hit upto 1.368v reported in CPU-z.
Im thinking im about my limit for now, temperatures are well controlled with an H50 + 2x 120mm fans in push/pull, but Im very wary of the voltages given reports of dead cpu's not to mention the hugely unpredictable nature of the Asus board prior to this one.
