max OC

[Wiff]

Whats the highest safe clock on a CPU?

[Sauron]

It depends on so many factors (including luck of the draw) that it's impossible to know until you try it with your own setup.

[DoubleY]

I think you more run into the issue of too much voltage instead of too much GHz

[Wiff]

but when I turn it too high, I cant even run anything, how should I access Bios then?

[WoodenMarker]

Any. There's no limit to what clock speed is safe for a cpu. What may wear out a chip over time is voltage and temperature. What is safe for the voltage and temperature will depend on the chip. 

 

but when I turn it too high, I cant even run anything, how should I access Bios then?

It would help to list your specs and what exactly you're trying to do.

[Wiff]

 

Any. There's no limit to what clock speed is safe for a cpu. What may wear out a chip over time is voltage and temperature. What is safe for the voltage and temperature will depend on the chip. 

 

It would help to list your specs and what exactly you're trying to do.

 

i am not trying anything, I just wanted to know it