Turbo boost while overclocking

[Peejay]

Hi! 

 

I'm looking into overclocking for a while now, I already posted about it. But something new popped up and I can't seem to find an answer. I already overclocked some older AMD processors, but my new i5 4690K seems much more difficult. My burning question is: what happens with Turbo boost? 

 

For example: I change my cpu multiplier to 45x, that should give me a speed of 4.5GHz. BUT, where does that apply? 

- Will my base clock go up to 4.5 and stay up all the time?

- Will my Turbo boost be able to get up to 4.5, while my base clock stays the same?

- Will my base clock go up to 4.5, and my boost even higher?

- Will my base clock be bumped up a bit, say 4.1, so my boost can hit 4.5?

 

I read some articles about this but I can't seem to wrap my mind around it.. Something doesn't add up. 

 

I would like to overclock my CPU to 4.3-4.5 ish GHz, but it would be awesome if it could only boost to this while under load, in game for example. I read that this is possible but I have no clue how I can achieve this. 

 

Can anyone give me some clarification? That would be AWESOME! 

 

Grtz

 

[samcool55]

Afaik boost disables when you manual OC.

BUT you can keep speedstep on. So it will still decrease in speed if it's in idle.

 

To make it clear, Turbo boost pushes the CPU over it's standard multiplier.

Speedstep is what takes care of all the multiplier changing when it doesn't use turbo boost.

For example your minimum multiplier is 10x, and stock is 40x and boost is 45x

Every multiplier change between 10x and 40x = speedstep

between 40x and 45x = turbo boost.

[Peejay]

Afaik boost disables when you manual OC.

BUT you can keep speedstep on. So it will still decrease in speed if it's in idle.

 

To make it clear, Turbo boost pushes the CPU over it's standard multiplier.

Speedstep is what takes care of all the multiplier changing when it doesn't use turbo boost.

For example your minimum multiplier is 10x, and stock is 40x and boost is 45x

Every multiplier change between 10x and 40x = speedstep

between 40x and 45x = turbo boost.

 

Aha okay, that is already very helpful. But how do I accomplish this?

[samcool55]

Aha okay, that is already very helpful. But how do I accomplish this?

Speedstep is automaticly on. And turbo boost disables itself most of the times automaticly when you change the multiplier yourself.

So if you change it to for example 45x, max speed is 4.5Ghz. And the cpu will automaticly go down in speed when it's idle.

It will go down as it does when it's stock so it should be fine.

Don't forget to check temps and stability!

[Peejay]

Speedstep is automaticly on. And turbo boost disables itself most of the times automaticly when you change the multiplier yourself.

So if you change it to for example 45x, max speed is 4.5Ghz. And the cpu will automaticly go down in speed when it's idle.

It will go down as it does when it's stock so it should be fine.

Don't forget to check temps and stability!

 

Ofc! Stability is key! What about the voltage, it will also be changed automatically when the speed goes down?

[samcool55]

Ofc! Stability is key! What about the voltage, it will also be changed automatically when the speed goes down?

If you manual set it, then no. But because the cpu doesn't need a lot of power anyway when it's idle. Heat shouldn't be an issue when idle.

You can put offset voltage or whatever on so the voltage changes too. But tbh it's quite advanced. I don't understand it so i have it atm just locked to 1.3V

Not sure if that voltage is ok for you too. you need to do some research about that.

[Peejay]

If you manual set it, then no. But because the cpu doesn't need a lot of power anyway when it's idle. Heat shouldn't be an issue when idle.

You can put offset voltage or whatever on so the voltage changes too. But tbh it's quite advanced. I don't understand it so i have it atm just locked to 1.3V

Not sure if that voltage is ok for you too. you need to do some research about that.

 

I will, thanks for all the help.

[samcool55]

I will, thanks for all the help.

Geen probleem!

If you have an issue, you know how to get my attention.