What is a dangerous voltage?

Im running the AMD FX-6300 and I have it overclocked to 4.5 and the voltage being used (according to cpu-z) is around 1.53v. I want to go higher, but what is a dangerous voltage? I want to keep the CPU for at least three years.

My cooling is the H100i and at 4.7 i only got to 40 degreesa celcius

 

It's not the voltage, it's Amps that kill you. Well you personally.  

 

40C isn't that bad. It really depends on what you are going for.

I ment dangerous for the cpu....lol. But i read somewhere that alot of voltage on the cpu can shorten it's life span. Cooling is not the issue, it's the voltage im worried about

thats quite high volts already, the idea is to get the highest clock with the lowest volts possible for that clock, the more volts you put through a cpu the shorter its life will be inspite of how many. the reason you keep the volts as low as possible is cause its the volts that what causes the heat also as the cpu get's on in its life it will require more volts to maintain the clock you will be running to keep it stable, as more impurities in the silicone will become present from use over time 

 

But if my cpu rarely gets to 40C, heat is not an issue. So can voltage alone, with no heat, damage a cpu? Also, what voltage do you reccomned to be the max safe voltage?

well also another thing worth mentioning is the am3+ cpu's dont exactly give most accurate readings in the world so i would add a 5-10degress to your read outs to play it safe, also stabillity test it with prime 95 just keep bumping up the clock on the fsb with out touching the vcore until the cpu fails the prime 95 tests. then bumb up the vcore. as long as the temps are ok the vcore is fine. but you should be able to push your oc a bit further on the current vcore any how depending on how well your cpu has done in the silicone lottery

alright, im feeling like i got grade A silicon, Thanks for all the help, ill post my high score

Judging by what I've read 1.54V is when voltage degradation is most common with that chip. So I generally stay a bit under that. I wouldnt go past 1.52V. I never go close to degradation point, not worth the extra speed for the reduced time of operation.

1.54V is pretty high, you always want the lowest voltage, experiment to turn the voltage down by about 0.5V at a time.