Enough for the next gen gaming for 3+ years?

On a unrelated subject i was playing crysis for 20mins lastnight when i was driving about and my computer crashed the screen went a plain light grey color then made a very load noise, had to restart the pc to fix it and when i did my cpu went back to it's default speed of 3.5ghz.. it asked me if i wanted to press f1 to set back to default or to just continue with the boot up..now i have it overclocked again @ 4.02ghz with no voltage tweaks, still not sure why my system crashed tho.

Because the overclock is unstable. 700mhz with no voltage increase is ridiculous.

damn.. sorry i am new to overclocking, my motherboard is a Asus 780G M5A78L-USB3. Do u know how i can achieve a stable overclock, I have now re-set the bios to factory settings, all is stable back at 3.5Ghz.. CPU-Z shows core speed at 3.799.01Mhz Multiplier x19.0 Bus Speed 200.00Mhz HT Link 2200.00Mhz Memory DDR3 1600Mhz NB Frequency 2000.0Mhz DRAM Frequency 800.0Mhz.

You need to increase the Vcore in the BIOS to let the clock speed become stable at high frequencies.
I would not recommend you to overclock if you have not read the basics with attentions unless you want to fry your components

Nope i got no idea what to do with the voltage's i know if you do set it to high it would fry everything which i would not risk.. i look for a tutorial on overclocking the fx 6300.

If you have no idea with it, it is not a good idea to leave it untouched when it comes to overclocking.
Look up more information before you attempt to overclock the chip.