Intel core I5 2500k overclock

newbieclocker

newbieclocker

newbieclocker

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Hi,

I am planning on building my own gaming computer with a Intel core I5 2500k processor and a Asus P8Z68-V PRO motherboard. The computer is also going to have a water cooling loop with a quad rad, d5 pump, 5200 RPM FANS x4 and a EK Supreme HF CPU Waterblock - Full Nickel.

I was wondering whether I could over clock my processor to 5GHz without it losing any lifespan.

If I could then could someone list down a step by step guide as I am very confused with it.

Thanks
 
It totally depends on the chip tbh you wont know until you get it how well it clocks, even under water.

Voltage wise most tend to stay under 1.4v, though with water and a quad rad (5200rpm fans, a little pointless/overkill for a quad rad?) you should get away with around 1.46v perhaps a little more.

You picked a good board (IMO) for clocking, I suggest reading over clunks P67 guide based on Asus UEFI BIOS (P67 and Z68 Bios are near identical). http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html

As for lifespan, as long as you don't go crazy with the voltages it should last until your next build. I haven't heard of many SB chips going south.
 
I would say that 99% of 2500K's will do 4.5Ghz but I doubt more than 10% will hit 5Ghz without some serious watercooling. Overclocking will reduce the lifespan of a CPU. But reducing it from 20 years to 10 years wouldn't really matter as it would be obsolete long before it went pop.
 
So is this right;

Ai Overclock Tuner - Manual
BCLK/PEG Frequency - 100

Turbo Ratio:

By All Cores (Can Adjust In OS) - 48

Memory Frequency - Set to AUTO or 1333MHz for now - If you are using high speed memory, please still leave this setting low while we find out what the CPU can do.

CAS Latency - 8
RAS to CAS Delay - 9
RAS Pre Time - 8
RAS ACT Time - 24
DRAM Command Mode - 1T

CPU Voltage - Manual Mode
CPU Manual Voltage - 1.35v - This is our maximum voltage for this section of the guide.
DRAM Voltage - 1.5v - Same as last time!

VCCIO Voltage - 1.0v - This voltage is for the memory controller, at this stage, you may not need to increase it, but by taking it off Auto, you remove the board's ability to over-volt it at high clock speeds, which it does do. Lower clocks are fine on auto.
VCCSA Voltage - 0.9v - This is the System Agent voltage (part of the CPU that isn't the cores), and after extensive testing, there is no real need to adjust this much, at least not at this stage.

It also says something about overclocking the memory do I have to do this or is it optional. Are there any numbers that I will need to fiddle around with in order to get to 5GHz.

Thanks
 
I never touched my memory, besides putting it into the XMP profile as 1600mhz defaults to 1333mhz iirc. XMP takes it up-to its recommended spec, which for me is 1600mhz, 9-9-9-24T 1.5v.

In theory memory shouldn't have much effect on an SB overclock, as we are leaving the base clock alone, obviously different loads of the chips memory controller can take some effect.

IMO for the most part you could probably leave VCCIO and VCCSA set to auto too, it will draw a little extra power on auto but nothing to fret about. I just used Clunks guide as a base line, didn't follow it down to the last word.
 
Stay away from software based overclocking...

You could try but be very very cautious, auto cpu voltage overcompensates big time, if you see it heading north of ~1.46v shut it down asap.

If you really want 5ghz, personally I would set MP at 50 and manual voltage of 1.4v and work from that. If it posts and is stable at 1.4v then head south, if its unstable go up a notch, at least then you know what voltages you are subjecting you're chip too
 
How do I know if it is unstable?

So I should set the MP to 50 and then set voltage to 1.4v if it posts try to get lower.

After I have done those two things what other things must I do?
 
You must stress the CPU 'if' it posts, use prime95 or IBT.

You will know if its unstable if windows locks up or crashes/BSOD. If you do get a BSOD take note of the code as it may help point out what the issue is.

What are your LLC, Duty, Phase and CPU Compat. options set at?

Edit: remember to keep an eye on your temps at all times!
 
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