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2600k @ 4.4

post #1 of 8
Thread Starter 
I'm trying to OC my 2600k to 4.4GHz. I restored it to stock (and the BIOS as well) for the past few days until yesterday when I finished setting up my HDD (installing Win7 and all my software). I used to run it at a stable 4.2GHz @1.265 (not sure if that is even the lowest I could go). I upped the multi to 44 and the voltage to auto. I ran IBTx20 and it completed with a max temp of 70C. However, when I started a Prime95 blend, it locked up (BSOD and all)(0x240? Don't remember). What voltage should I set it to for a stable 4.4?

Also, should I enable C1E, Intel C-State, PLL? What does the C-State and PLL do? I know C1E is a power saving feature that throttles the voltage and vCore when idling, and revving back to set clock speed when in use.
Edited by SkullTrail - 7/22/11 at 8:37am
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post #2 of 8
just go a little higher, there is not set rule since each chip is different.
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post #3 of 8
Quote:
Originally Posted by CBZ323 View Post
just go a little higher, there is not set rule since each chip is different.
That is the way this game goes.
Any voltage that gives you no BSOD is the right amount of voltage.
Which means BSOD is your friend.
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post #4 of 8
Never leave voltage on auto, it's gonna be way to high. For 4,4 GHz, you can try 1,28 volts and then raise/lower to get the lowest stable voltage. For 4,5 GHz, 1,30 volts is usually a good starting point.
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post #5 of 8
Thread Starter 
Should I do this in Windows 7 or via the BIOS? I would assume changing the BIOS from the OS is easier, as I won't have to restart and wait for boot, then load stress tests and instead would only have to change voltage/clock speed, stress test, and wait for it to crash, then restart.
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post #6 of 8
Always BIOS
post #7 of 8
Quote:
Originally Posted by Snowmen View Post
Never leave voltage on auto, it's gonna be way to high. For 4,4 GHz, you can try 1,28 volts and then raise/lower to get the lowest stable voltage. For 4,5 GHz, 1,30 volts is usually a good starting point.
This, good God this.
My mobo for example, despite not being an X6Y chipset, likes to take my Northbridge voltage up to 1.4 volts.
Which is why this thing runs so damn hot.

I turn it down to 1.15 and it not only ran much cooler, but was actually MORE stable.

Auto anything in OCing is generally to be taken as wonky and inefficient, for "Safety zone" purposes.
If that makes sense.
    
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post #8 of 8
For reference, I needed 1.35 vcore to get 4.5Ghz on my 2600k w/ HT on. Seems a little higher than many, but not every chip is the same, so you'll have to play around with it some to see what works best for you.
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