This is my first OC'ing guide, so I will keep it short and sweet.
The Pentium Dual Core E5400 is quite an overclocker I've found, taking it to 4.644GHz on air.
This guide will show you how to overclock it on my crappy cheap G41 motherboard. You will probably do better with an X38 or X48 mobo instead, But this was my budget build.
I will be overclocking on a Gigabyte GA-G41MT-D3.
First thing you want to do is boot into the BIOS. Usually it is: DEL, F12, F2 etc. It will say somewhere when you boot up. (i.e. "press DEL to enter setup" etc.)

This is my boot screen. If I press DEL here it will take me into the setup:

In the setup. With most gigabyte boards you want the first option: "Motherboard Intelligent Tweaker".

With these settings you will get a nice overclock from 2.7GHz to 4.16GHz. you want the CPU Clock Ratio at 12, the fine CPU Clock Ratio at 0.5, the CPU Host Frequency at 333, and you want to set the PCI Express Frequency at its default of 100. (Why do this? on some boards the auto setting adjusts depending on other aspects. better safe then sorry!) Also, the low FSB of the E5400 means that the stock memory clock defaults at 800MHz. A Host Freq. of 333 will fix this, however if you leave the CPU Clock Ratio at its stock 13.5 then you will need a lot more volts, as explained in the next photo.

I have set my voltage to 1.45000 for stability. Depending on your CPU, mobo and other stuff, you may or may not be able to use a lower voltage.
Be aware that any low quality boards will probably not have very good power going to the CPU and you may not be able to get as high. A good quality board from places like Gigabyte and Asus should give you a decent overclock.
I hope this helps you in some way.
If this is in the wrong place Mods: please move!
Edited by TA4K - 7/21/13 at 4:38pm
The Pentium Dual Core E5400 is quite an overclocker I've found, taking it to 4.644GHz on air.
This guide will show you how to overclock it on my crappy cheap G41 motherboard. You will probably do better with an X38 or X48 mobo instead, But this was my budget build.
I will be overclocking on a Gigabyte GA-G41MT-D3.
First thing you want to do is boot into the BIOS. Usually it is: DEL, F12, F2 etc. It will say somewhere when you boot up. (i.e. "press DEL to enter setup" etc.)
This is my boot screen. If I press DEL here it will take me into the setup:
In the setup. With most gigabyte boards you want the first option: "Motherboard Intelligent Tweaker".
With these settings you will get a nice overclock from 2.7GHz to 4.16GHz. you want the CPU Clock Ratio at 12, the fine CPU Clock Ratio at 0.5, the CPU Host Frequency at 333, and you want to set the PCI Express Frequency at its default of 100. (Why do this? on some boards the auto setting adjusts depending on other aspects. better safe then sorry!) Also, the low FSB of the E5400 means that the stock memory clock defaults at 800MHz. A Host Freq. of 333 will fix this, however if you leave the CPU Clock Ratio at its stock 13.5 then you will need a lot more volts, as explained in the next photo.
I have set my voltage to 1.45000 for stability. Depending on your CPU, mobo and other stuff, you may or may not be able to use a lower voltage.
Be aware that any low quality boards will probably not have very good power going to the CPU and you may not be able to get as high. A good quality board from places like Gigabyte and Asus should give you a decent overclock.
I hope this helps you in some way.
If this is in the wrong place Mods: please move!
Edited by TA4K - 7/21/13 at 4:38pm










