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Noob Overclocking - Need a strategy

post #1 of 10
Thread Starter 
So I've gone into bios and kept everything at auto and just changed the turbo clock to 40,42,44,45,46 in that order. I recorded voltages and max temps. I don't have the exact numbers on me now but I'll update them later.

Freq - Volts
3.6 - 1.10x
4.0 - 1.164(maybe little less)
4.2 - 1.164
4.4 - 1.356
4.5 - 1.36x
4.6 - 1.4xx

I don't understand this scaling, but with my settings on auto I believe I have the capabilities to run a decent overclock below 1.3volts. So my question is: What should my strategy be to achieve the best overclock below 1.3v. I just don't know where to start

Also, I can't get the dynamic voltage to be activated in bios (e.g. it wont let me change it).

dan
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post #2 of 10
Start at adding 100Mhz and trying to boot if it doesn't boot add .005V to your CPU. Keep doing this until it boots.
Your strategy isn't good in that it overshoots the voltage it would actually to ensure stability.
post #3 of 10
Thread Starter 
I've read this is not a good way to overclock IvyBridge because undervolting is more damaging to it than overvolting. How do I access the vdroop ability? I don't want a 24/7 overclock

dan
Edited by dPaquin - 5/13/13 at 6:44am
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post #4 of 10
Quote:
Originally Posted by dPaquin View Post

I've read this is not a good way to overclock IvyBridge because undervolting is more damaging to it than overvolting. How do I access the vdroop ability? I don't want a 24/7 overclock

dan

So you just want a benchmark?
What i meant was start at stock clock and start a 1.000V and keep adding 100Mhz and then .005V until Prime95 is stable for 5 mins and keep adding, if its for benchmarking go as high as you can but not over 1.5V.
post #5 of 10
There are a couple ways to go about this. Though I've been running this process as of late. The steps are quite different if I am overclocking memory as well, but in newer systems memory doesn't seem to matter as much anymore. I typically just set intel systems at 1600MHz and AMD at 1866MHz and forget it.

First I play around with auto settings on and see what sort of things the CPU is capable of taking note of what temps I see at what voltage and clocks.

Then I set the voltage at something I have seen give temps I am OK with, but I leave the clocks at stock

I then start to raise the CPU clock in whatever option the platform gives me. First a large jump and then small jumps and after each increase I run a few minutes of OCCT. The first time OCCT crashes I lower the clock a bit and retest. Before too long I will know my max OC at the applied voltage and when I think I have it I will try to run OCCT for an hour or so...eight hours if it is not my system.

Note: as the CPU speed increases so will the temp. A CPU at 1.35 volts will run hotter at 4.5GHz than at 3.5GHz. So you need to have a little head room for temps at the max OC when you start. If you get to the end and think you can go higher with the temps, give the voltage another tick up and start the process over.

Another Note: once I find that max OC for the voltage I will record it and then start to play a bit. I've found a few CPUs that will actually clock slightly higher with a little less voltage...but will fail if you left the voltage alone. More vCore does not always mean more MHz. Though typically I end up setting the original setting again.

The Vdroop option will be in the CPU voltage settings for the motherboard. Most often it is enable by default. I think it is fairly important since the dawn of "Turbo" core speeds
Edited by Vagrant Storm - 5/13/13 at 7:04am
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post #6 of 10
Thread Starter 
I like these methods, but I want a method with the vdroop...this is for 24/7 overclocks, I want a boost overclock.
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post #7 of 10
Quote:
Originally Posted by dPaquin View Post

I like these methods, but I want a method with the vdroop...this is for 24/7 overclocks, I want a boost overclock.

Pretty much any kind of overclocking will require Vdroop correction enabled. Vdroop happens by nature when the CPU/VRMs get warmed up and under load. If you don't correct for it by increasing the Vcore under load you then will be trying to run the CPU under load at a lower Vcore...and if turbo is used; at a higher clock.

So there is no method of overclocking with Vdroop...you just turn it on. The other option is to do what we did in the old days...have a higher than needed voltage at idle so that you had the desired voltage under load.
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by Vagrant Storm View Post

So there is no method of overclocking with Vdroop...you just turn it on. The other option is to do what we did in the old days...have a higher than needed voltage at idle so that you had the desired voltage under load.

So back to my first post, how do I turn it on. It remains untouchable in my bios.

dan
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post #9 of 10
Quote:
Originally Posted by dPaquin View Post

So back to my first post, how do I turn it on. It remains untouchable in my bios.

dan

I looked it up quick and it appears on that specific motherboard it is called LLC (which is Load Line Calibration...really what all Vdroop options "should be" called) and you have manually set it to what you ant it to add. Just give it a few ticks. You might have to play with it. It should not let you add that much vdroop correction so it shouldn't be dangerous. Just don't use the max setting right from the start.
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post #10 of 10
Thread Starter 
Thanks man! I put LLC on medium and the boost at 45x with pll voltage at 1.65. everything else on auto and I'm getting 4.5ghz @ 1.344v w/ max temp so far of 80C running prime 95 for 5 minutes (ambient is about 20C). If I want to try a lower voltage, do I just bump up llc to high, then extreme, then turbo if they pass? Is it normal for two cores to be 5degrees different from one another?

dan

edit: I just put it on high and the voltage went up...hmm maybe I should lover it to low?

2nd edit: It's on standard now at 1.3 volts (bouncing above and below every now and then which worries me) and running prime 95 max temp is 75 after 5 minutes I'm going to run it for 4 hours and see if it'll crash. If not, I'll run OCCT tomorrow while I'm at work.

3rd edit: So I ran prime95 for 15 hours with no problems and bumped up the clock to 4.6 and now am running at 1.356v. How do I get this lower or at least try to?
Edited by dPaquin - 5/14/13 at 6:14am
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