Post Your Overclock! [2]

[kbrady1979]

If you open up Core Temp and stress your system for a few minutes, you can find out what your VID # is. It's right below the frequency. It will jump around some, but you want to find the most consistent number. Once you have that, take your lowest stable manual voltage and subtract your most often seen VID # in Core Temp. That will be your offset. You may end up with a +/- depending on the VID. So if your lowest stable manual voltage is 1.270 and your most consistent VID is 1.260, your offset would be a +.010. If your lowest stable manual voltage was 1.255 and your VID was the same 1.260, your offset would be a -.005. The more "extreme" your LLC setting, the more extra juice it will provide OVER what your manual/offset setting is. For example, your manual voltage is 1.270, and your LLC is let's say Ultra....when stressing your CPU you may see a total voltage of 1.272-1.280. It's a way of keeping a static voltage, but giving it a little headroom for those times it needs to draw more power.

I have mine running on an offset and most of the time it's around 1.150 or less except if I'm stress testing. Just because your computer is running at 4.5 or 4.7GHz doesn't mean it's using your MAX allowable offset voltage. I can play games and it never hits my max of about 1.240-1.250. That only comes when running IBT/Prime/AIDA64.

You can set an offset voltage, save changes and boot back into Windows. Fire up your stressing application, Core Temp, and CPU-Z and see what it jumps up to. If it seems to go way above what your manual voltage was, go back into the BIOS and take the offset down a notch. I did some fine tuning that way and got my offset voltage while stressing down to 1.240-1.248 @ 4.5GHz.

These systems take a little knowledge and a little trial-and-error as well. I can only tell you what I've done that works, and what doesn't work, but at the end of the day, I'm not sitting where you are and your components might run differently than mine. There's not going to be a perfect frequency/voltage/temp because it's always changing and you have to tweak it to find a good stable frequency that doesn't require too much voltage so it doesn't put out too much heat. I think that's half the fun though!

Here is an example of running at full frequency and not using all available voltage. I have Chrome and Firefox open, Outlook open, Yahoo and Skype open, CPU-Z and Core Temp open all while playing a 1080p video off YouTube......AND streaming an HD movie from my computer to my TV with Plex Media Server.

 

[essenbe]

Kelly is pretty much right on the money. Finding the right stable offset requires a lot of trial and error. It is also Dependant on your CPU and board. It took me many hours of prime to find mine. For some people, depending on hardware set up, the formula of Vcore- VID is right on. For others, like me, it is an 'in the ball park' thing. Also, all the other settings in bios affect it. For instance, I told you my C states are off. My 4.5 is very stable and has been for months. But, if I go to bios and enable the C states, I'll BSOD when I see 'Starting Windows'. I've always said, overclocking is not a science, it is an art. It is a matter of figuring out your bios and CPU and have everything pretty well balanced. What works well for one person will not work at all for someone else. But, there are general guidelines that work for most people, with a little tweaking.

 

[essenbe]

BTW, Kelly. Excellent post. I tried to rep you for it, but I guess you'll have to wait a while.

 

[kbrady1979]

I've been running with CPU C1E state ENABLED, and the other 3 Disabled since I started overclocking and have never had a problem. I just followed the IB OC'ing guide.

BTW, Kelly. Excellent post. I tried to rep you for it, but I guess you'll have to wait a while.

I tend to ramble sometimes, and lose track of what I'm saying lol....but thanks Steve!

 

[essenbe]

I think I have C1 enabled too, I misspoke, I guess. My bios is set up pretty much exactly as in the guide.

 

[A Guy]

I tend to ramble sometimes, and lose track of what I'm saying lol....but thanks Steve!

Dazzle them with...

JOKE!

A Guy

 

[kbrady1979]

I think you said our BIOS settings were very similar, which would make sense because we read and went by the same guide. I can't tell you how many times I've recommended that guide to people!

 

[essenbe]

Same here, Kelly. And Bill, with 33,000+ posts, no doubt you are an expert at that.

 

[A Guy]

My initials are B.S.

A Guy

 

[Britton30]

Kelly when you use the Vcore-VID=offset formula, where is the starting point?
The Haswell always says VID is .8250 no matter if idling or under load regardless of the clock, SB bounces a lot.

 

[kbrady1979]

Starting point for me is Offset, and Auto........then I apply the actual offset. Right now I'm at +.010 and I'm running 1.240-1.248 with a max of 1.256 while stress testing.

Also, I was wondering if your Z87 Sabertooth came with the temperature sensors. I just watched Paul from Newegg unbox one and his came with temp sensors with a cable attached to them.

 

[Britton30]

Yeah 3 temp sensor leads.

 

[kbrady1979]

Nice.........what do you think you are going to do with them?

 

[Britton30]

I thought about putting one under my arm if I feel sick.
I think I'll use one in the front air intake and one the chipset heatsink, the 3rd I dunno yet. They are a simple thermistor on the end of a two lead cable and I have to rig some way to mount them.

 

[ganjiry]

Nearly there,
It would post but not boot with 5.0Ghz @ 1.488v bsod service exception. So i'll get the bottle up at some point and give the v-core another nudge lol. It's not good for my heart lol

Here's the updated realbench if anyone wants it https://dl.dropboxusercontent.com/u/26253730/RealBench_v1.1.rar

Ryan try FSB 205 /Multi 23.5

LLC should be extreme /you can leave the other on auto if you are going .5 on the bus

1.5 is the voltage for 5,0 ghz no matter what some 1.51 because it needs that extra to get over

good luck with it you only need it to take a pic so keep a eye on temps and if you run a stability test and see it heating up let it go and save your self the bsod if the temps go over 61 to 62c lock up and bsod may occur that is the wall and the chip can't take anything over 60c so be careful

Cheers for the info chap
As i haven't got the extra 4pin ATX 12v to connect i won't push any higher, It's not worth the hassle
My heads too full of sh** to concentrate anyway lol and the only time i've beenin the bios in god knows how long is to setup the fans when i re-cased my rig.

Reading these last few pages i'm sooo glad i don't run Intel, what a ball ache it looks to figure out. There are way too many things to think about lol
Fairplay to you lot

Edit: that voltage quoted must have been a typo or i just wasn't thinking as when i pushed for 5ghz i was using 1.51v

 

[Britton30]

Reading these last few pages i'm sooo glad i don't run Intel, what a ball ache it looks to figure out. There are way too many things to think about lol
Fairplay to you lot

You got that right Ryan.

 

[kbrady1979]

Ivy Bridge is really not that bad. Unlocked multiplier, and very few things to fiddle around with. If you've been doing something a certain way for a long time, and then have to do the same thing a very different way, it can be confusing. Such is the learning curve....

 

[ganjiry]

Reading these last few pages i'm sooo glad i don't run Intel, what a ball ache it looks to figure out. There are way too many things to think about lol
Fairplay to you lot

You got that right Ryan.

I take it you struggled a bit then chap?

Ivy Bridge is really not that bad. Unlocked multiplier, and very few things to fiddle around with. If you've been doing something a certain way for a long time, and then have to do the same thing a very different way, it can be confusing. Such is the learning curve....

yeah i suppose that forgetting everything you learned previously is the hardest part enit.

 

[Solarstarshines]

Ok so this must be what you mean by the offset bring down the core here we go

offset+100 right on the money have a nice day kids

Oh yeah looks like my temps got better too

@ Ryan once you put your mind to it you can do both look at it as learning two Languages lol

@Kelly yes indeed have to play around before you find common ground

 

[Solarstarshines]

Kelly is pretty much right on the money. Finding the right stable offset requires a lot of trial and error. It is also Dependant on your CPU and board. It took me many hours of prime to find mine. For some people, depending on hardware set up, the formula of Vcore- VID is right on. For others, like me, it is an 'in the ball park' thing. Also, all the other settings in bios affect it. For instance, I told you my C states are off. My 4.5 is very stable and has been for months. But, if I go to bios and enable the C states, I'll BSOD when I see 'Starting Windows'. I've always said, overclocking is not a science, it is an art. It is a matter of figuring out your bios and CPU and have everything pretty well balanced. What works well for one person will not work at all for someone else. But, there are general guidelines that work for most people, with a little tweaking.

Only C-state should be on is C3 everything else will BSOD you

It's because you are requiring a power draw that those states don't allow only C3 let's you creep by happily