We're not telling you that your cpu is garbage , it's a decent cpu and can still be used for various tasks and games.
What we're trying to tell you is that the motherboard is garbage and if you want to overclock the E-7400 you need a different motherboard.
I was trying to tell you in a round about way that you need a new computer because there are too many components that would need to be upgraded and it would cost you the same as buying a new computer.
New motherboard , psu , video card and ram because you only have 2gb of ram.
This is all just a bandaid on on old system and won't last long because your making minimal upgrades and your wasting your money by dong that it's not worth it.
You said earlier you wanted to overclock the cpu that you had to get to the point of being equal with an i3 but that would only be speed wise and not tech wise because the i3 is the newer tech and has more basic instruction set in it to make it out perform and overclocked E-7400 by a wide margin.