Some things are complicated and have complicated explanations. Any simple explanation is going to leave stuff out.
With that caveat...here goes:o
Red line = ideal world
Orange line = real world
Blue line = real world with Vdroop...low LLC value
In the ideal world the voltage delivered to the CPU at idle is constant and when it has to work harder (load) it gets instant increase in voltage with no fluctuation and when the load is removed, it instantly returns to idle and the decrease in voltage is instant and without fluctuation. Red Line.
Of course this is not real. The voltage is never constant and any time there is a change in load, the components have to react, which takes time and often means they over or under react. Imagine you are arm wrestling with the objective to keep your hand perfectly upright. That's just like your CPU. If your opponent increases force or decreases force...you will have to react and you will see your hand moving because if he decreases force you will be pushing too hard and have to compensate. Orange line.
So, in the real world the voltage will under or overshoot as the CPU is asked to change it's load. These over or under shoots are what causes instability and the overshoots, in particular, can be damaging.
Knowing the CPU can overshoot to damging/unstable voltage (the red circles) Intel have come up with a protection mechanism...vdroop. This limits the voltage increase possible and therefore limits the possible overshoot. Blue line.
However, if your CPU needs the orange line for a certain OC you can see, that the protection mechanism of Vdroop (limiting the voltage) would cause the OC to fail. So, you are given control over Vdroop. By setting LLC levels you are adjusting the level of the safety mechanism. Essentially, moving the blue line up in steps...towards the orange line.
Hope that helps
With that caveat...here goes:o
Red line = ideal world
Orange line = real world
Blue line = real world with Vdroop...low LLC value
In the ideal world the voltage delivered to the CPU at idle is constant and when it has to work harder (load) it gets instant increase in voltage with no fluctuation and when the load is removed, it instantly returns to idle and the decrease in voltage is instant and without fluctuation. Red Line.
Of course this is not real. The voltage is never constant and any time there is a change in load, the components have to react, which takes time and often means they over or under react. Imagine you are arm wrestling with the objective to keep your hand perfectly upright. That's just like your CPU. If your opponent increases force or decreases force...you will have to react and you will see your hand moving because if he decreases force you will be pushing too hard and have to compensate. Orange line.
So, in the real world the voltage will under or overshoot as the CPU is asked to change it's load. These over or under shoots are what causes instability and the overshoots, in particular, can be damaging.
Knowing the CPU can overshoot to damging/unstable voltage (the red circles) Intel have come up with a protection mechanism...vdroop. This limits the voltage increase possible and therefore limits the possible overshoot. Blue line.
However, if your CPU needs the orange line for a certain OC you can see, that the protection mechanism of Vdroop (limiting the voltage) would cause the OC to fail. So, you are given control over Vdroop. By setting LLC levels you are adjusting the level of the safety mechanism. Essentially, moving the blue line up in steps...towards the orange line.
Hope that helps
Arne Saknussemm wrote:
Some things are complicated and have complicated explanations. Any simple explanation is going to leave stuff out.
With that caveat...here goes:o
Red line = ideal world
Orange line = real world
Blue line = real world with LLC
In the ideal world the voltage delivered to the CPU at idle is constant and when it has to work harder (load) it gets instant increase in voltage with no fluctuation and when the load is removed, it instantly returns to idle and the decrease in voltage is instant and without fluctuation. Red Line.
Of course this is not real. The voltage is never constant and any time there is a change in load, the components have to react, which takes time and often means they over or under react. Imagine you are arm wrestling with the objective to keep your hand perfectly upright. That's just like your CPU. If your opponent increases force or decreases force...you will have to react and you will see your hand moving because if he decreases force you will be pushing too hard and have to compensate. Orange line.
So, in the real world the voltage will under or overshoot as the CPU is asked to change it's load. These over or under shoots are what causes instability and the overshoots, in particular, can be damaging.
Knowing the CPU can overshoot to damging/unstable voltage (the red circles) Intel have come up with a protection mechanism...vdroop. This limits the voltage increase possible and therefore limits the possible overshoot. Blue line.
However, if your CPU needs the orange line for a certain OC you can see, that the protection mechanism of Vdroop (limiting the voltage) would cause the OC to fail. So, you are given control over Vdroop. By setting LLC levels you are adjusting the level of the safety mechanism. Essentially, moving the blue line up in steps...towards the orange line.
Hope that helps
Okay thanks for the explanation it's helped. What I need is some exposure "playing" round with LLC. ATM my LLC is set to Auto, and my vcore is 1.360v. Would u apply any LLC on that? In the BIOS it ranges from 1-7. Lets pick out the most extreme levels in order to see the results more clearly.
If I set it to 1 what would happen to my vcore? or if I set it to 7 again what would happen to my vcore?
Thanks for the help its much appreciated!
