Thanks for the reply. So it's not necessary at stock clocks. I will try overclocking my i5 2500k and see what happens when I prime95. I have the same mobo as yours "ASUS p8p67 Pro" which settings do u recon for overclocking 2500k to 4.0ghz
My CPU Cooler is Corsair A70.
Thanks in advanced
With the A70 you should be able to get a decent overclock. Most people aim for 4.5GHz, so I would suggest you start there. I posted a little tutorial on another topic on how I overclocked my CPU. The tutorial is below:
1. I went into my BIOS and went into the "Advanced BIOS" settings by clicking on the option on the top right of the BIOS and choosing the Advanced BIOS option.
2. Next I went to the "AI Tweaker" section and changed the "AI Overclock Tuner" option to Manual.
3. Then I typed in a number corresponding to the overclock I wanted. In my case I typed in 40 in the "By All Cores" section for a 4GHz overclock (BCLK/PEG Frequency * Turbo ration = 100.0 * 40 = 4000MHz = 4Ghz).
4. I left the memory frequency to Auto because I wanted my CPU overclock to be stable first. Alternatively you can set the frequency to 1333MHz, which is the default for most or all DDR3 DIMMS.
5. Next you have to set the voltages. The "CPU Voltage" option has to be set to the "Manual Mode" to allow you to type in what voltage you want to use. If you want a 4.5GHz overclock then use a Turbo Ration of 45 on stage 3 and set the voltage to something like 1.25V.
6. Set the "CPU PLL Voltage" to disabled and boot to Windows.
7. Use prime95 to check if the overclock is stable. I tested my CPU for at least an hour before deeming it stable. If the prime95 test shows no errors then you can assume the overclock is stable. You can then repeat step 5 until you have a stable overclock at the lowest possible voltage. I ran prime95 for about 10 hours after I had finished overclocking to ensure the stability further.
