e8400 is an excellent match as I have that combo myself. You don't have to get crazy with the overclock. 8 multi times 400 bus for 3.2 GHz is easily handled by the stock Intel HSF. Just be sure to disable your CPU fan profile in the BIOS so that your fan runs fast all the time instead of 'silent mode."
The E8400 is great, even for a novice overclocked. You can just go into the BIOS and set the FSB to 400 and the FSB RAM ratio to 1:1 for a 3.6GHz processor. No need for voltage changing or anything, it'll be rock-stable, too.
You tried it with what? Did you go buy a cpu? Are we supposed to be psychic here? Did you read the C2D overclocking guide? What memory do you have? What voltages is your memory supposed to be? What speed are you running your memory??
IM SRY lol i thought this was the overclocking thread...sry no this is still my pentium dual E2200