Help needed overclocking for the first time (i5-2500k, Asus p8z68-v)

[potato58]

Hi,

After asking here if my PC would be better off upgraded or replaced the consensus was that I should overclock my i5-2500k (currently at stock) and bung in a new GFX card.

I've been meaning to OC the i5 since I bought it in 2011 but every time I start to research it I get completely confused and give up because none of the guides seem to match my setup exactly, or there's some disagreement about what settings to use, and I just don't have the knowledge to make my own judgements.

This video guide seems very close to what I see in my BIOS but mine has some more settings that he doesn't cover. https://www.youtube.com/watch?v=WMZoWOpry40 Also his approach is more or less put the multiplier at 45, voltage at 1.35 and have done with it, whereas I've seen other guides where there's a lot of trial and error involved.

Please could someone give me some advice?
Here's my BIOS as it looks right now (on 'optimised defaults'). http://imgur.com/a/9FOpj

Oh and here's the RAM I'm using. 2x 4GB. http://www.corsair.com/en/cmx8gx3m2a1600c9

 

[zipp0r]

similar bios to my p8p67.
i can tell you settings for 4.5ghz using offset voltages. providing you arent using the stock cooler and have a better one.

set AI overclock tuner to DISABLED
turbo ratio to 45
load-line calibration MEDIUM
vrm frequency, i think 350
cpu offset voltage +0.005v

this will give around 1.330v at full load with loadline calibration providing most of the voltage increase and speedstep will work correctly at idle.
everything else can be left as it is.

if you get a bsod (unlikely), cpu offset can be increased to say +0.015v, if still bsod VCCIO would need an increase to 1.1v

 

[Disco_P]

Set AI overclock to manual

Turbo ratio to whatever you want (lets start with 44)

Internal PLL on

Memory set to XMP

OC tuner, Dram timings and cpu power management can be left as they are

Load-Line Calibration to high/very high (start on high and watch voltage under load, if it dips more than 0.02v then bump to very high)

Duty control to extreme (or current control as it might be called)

CPU Current capability to 140%

CPU voltage to manual

CPU Voltage to 1.33 to start with

CPU spread spectrum to disabled

I've pretty much copied to settings from what is currently working on my Sabertooth Z77. The only things I've changed are CPU voltage and Turbo ratio.

When stressing I like using HWMonitor for voltage and temps and Asus Realbench for stressing. Start with 1 hours runs with half your RAM. If it passes either up your frequency by 1 or lower voltage for 0.01v. Repeat until happy or it crashes. If happy run for 8 hours to confirm everything is hunky dory, if it crashes go back a step.

 

[potato58]

(Sorry it's taken me so long to reply - I got fed up of reading about overclocking and gave up but now I'm having another try.)

Thanks for the reply guys. So I've done more or less what you said (you disagreed on a couple of things so I had to choose) and the computer turns on fine.

Please could someone have a look at my latest BIOS screenshots and see what they think?
http://imgur.com/a/8IQ15

Thanks!