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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 323

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Poll expired: Oct 17, 2012  
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post #3221 of 9489
Hey all. First time overclocker here.

My BIOS:
Warning: Spoiler! (Click to show)





With PLL at auto:



PLL set to 1.75v:



Does PLL really decrease the life of the CPU? If it does, I'd rather accept getting a couple of degrees higher.
post #3222 of 9489
Lower cpu PLL is fine if it is stable. I run mine at 1.7-something. Run a few hours of p95, or as the tutorial says, adjust your stress--stablity needs based upon intended use.

Nice OC! thumb.gif
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post #3223 of 9489
Thank you!

Ran Prime for about three hours with the PLL to 1.75 and saw no issues. Next week I'll test it for at least 12 hours just to make sure.

I really did get lucky with this chip. I can go way further for sure, but I might just leave it at 4.5.

Let's hope I get as lucky with my 7950!
post #3224 of 9489
I run 1.58v for my PPL, which is the lowest it will go. 4.5ghz and it's fully stable. thumb.gif
post #3225 of 9489
I can run 47x at 1.44V and with CPU PLL 1.475V. Is that PLL too low?
post #3226 of 9489
Quote:
Originally Posted by Drak0 View Post

im testing it with +0.012 turbo and it seems to work fine.

Right now i am using +0.005 offset, +0.012 turbo

@lucky: i ran prime 95 for 1 hour as suggested.

my vcore is not very stable, i mean it stays around 0.950 with ups and downs in idle and 1.192/1.2 when running prime

An hour is not enough, you should run P95 for a minimum of 8 hours if you want a stable system.

Leave your offset where its at and only increase turbo that way you keep the 0.950 idle vcore. If it becomes unstable at idle then you will want to increase offset
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post #3227 of 9489
Just had an incredibly scary experience with LLC1.

My 2500k was being really stubborn about 5 ghz. 1.525V load on LLC 2 would BSOD in about 60 seconds. The issue was that I'd get 1.578V idle because of LLC 2. My offset voltage was +0.265 (scary I know).

So I changed I changed the LLC to 1 and put the offset to +0.210. I assumed that I'd always have about 1.525. I shouldn't known when the Asrock Utiltiy read 1.584. I had one eye on HW monitor (since it records max volts) and one on realtemp. Idle voltage was as high as 1.592. Odd.

I ran a small FFT test instead of my normal custom blend due to the suspicions. Instaneously, the vcore was well over 1.6; around 1.61-1.64. Not sure exactly what. Temps hit 85 in seconds.

Thankfully, I leave my PLL at 1.58 (lowest allowed). And thankfully, I know that the 2500k can take a ton of vcore and be alright. I suppose it isn't just voltage spike; the difference between LLC1 and LLC2 is massive.
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post #3228 of 9489
Quote:
Originally Posted by Kanashimu View Post

Just had an incredibly scary experience with LLC1.

My 2500k was being really stubborn about 5 ghz. 1.525V load on LLC 2 would BSOD in about 60 seconds. The issue was that I'd get 1.578V idle because of LLC 2. My offset voltage was +0.265 (scary I know).

So I changed I changed the LLC to 1 and put the offset to +0.210. I assumed that I'd always have about 1.525. I shouldn't known when the Asrock Utiltiy read 1.584. I had one eye on HW monitor (since it records max volts) and one on realtemp. Idle voltage was as high as 1.592. Odd.

I ran a small FFT test instead of my normal custom blend due to the suspicions. Instaneously, the vcore was well over 1.6; around 1.61-1.64. Not sure exactly what. Temps hit 85 in seconds.

Thankfully, I leave my PLL at 1.58 (lowest allowed). And thankfully, I know that the 2500k can take a ton of vcore and be alright. I suppose it isn't just voltage spike; the difference between LLC1 and LLC2 is massive.

When you say that your PLL at 1.58 is the lowest allowed voltage, what is your basis of "allowed" there?
post #3229 of 9489
Finally installed my new z77 extreme6. One thing that concerned me upon boot was that the system clock was wrong. It was 25 hours ahead.

Naturally I changed it to the correct time, but should I be worried? Think I read a newegg review where the user had this same issue and it got worse over time and the clock started resetting itself, with the board eventually dying.

Also after I reformatted, my 2nd monitor would sometimes glitch out and flash weird lines and colors. It recovered once, but after that I had to reboot to fix it. My main screen would be unaffected. I don't know what caused it but it hasn't happened in a few hours after I disabled some options in bios. Anyone else had this happen to them?

As for OCing, I came from a asus p8p67 which was pretty straight forward. I set voltage manually, upped multi and set LLC to ultra high ( level 2 equivalent in this board I believe ). However, for this board there's turbo voltage. Should I turn this off? I've noticed my vid is 1.366 in coretemp compared to 1.33 back with my old board. I'm using the exact same voltage.

Any help would be great. Thanks!
Edited by Yvese - 2/10/13 at 9:34pm
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post #3230 of 9489
Quote:
Originally Posted by kevindd992002 View Post

When you say that your PLL at 1.58 is the lowest allowed voltage, what is your basis of "allowed" there?

Sorry, I meant 'allowed' as in lowest setting possible in BIOS. In my experience a lot of tweaking with PLL has zero bearing on stability and only increases temps. Therefore, I leave it at the lowest setting and just ramp vcore like mad.
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