Z370 and Load Line Calibration / LLC ?

[Dicehunter]

Just curious but am I right in thinking that the higher the LLC number the less the CPU volts will fluctuate ?

I only ask as I've never actually touched LLC before but noticed with my 8700K the volts wildly fluctuate above what I actually set.

 

[AlienALX]

Yes. Also the higher you set it the higher the voltage will climb in order to remain solid. So sometimes I have seen a 1.4v set voltage climb to 1.47 in order to remain stable. So just be careful with it, and especially the "extreme" setting as you could end up with far more voltage than you bargained for (esp on Giga, see also Jay blowing up a FX CPU).

 

[Dicehunter]

Cooleo thank you, Well I managed to get 4.80GHz nice and stable both bench and game at 1.28v but 5GHz needs 1.35v so I've settled on 4.80GHz with adaptive voltage as from my numerous game tests the difference in FPS is margin of error so it's not worth the extra volts and heat.

 

[BigDaddyKong]

I don't know about the Intel boards but on the newer AMD boards you get transient overshoot using LLC. It will reduce Vdroop, but when the load on CPU shifts, it will cause a voltage spike that is not shown in software. Say I have the volts set at 1.4 and use LLC 3. It might only droop down to 1.39 when loaded. When the workload on the CPU shifts, it might shoot to 1.44. If I was using LLC5, it might stay at 1.4 or might even go to 1.42 or something. When the load shifts, it can jump as high at 1.52. The only way to know for sure is using a meter on the back of the board to measure the current directly. You might check and see if there is a large on post on the board your using and see if that has been tested to see if that happens. I don't know if that is something on all new boards, or just the AMD series. But it can lead to premature burnout if your running on the bleeding edge.

 

[Dicehunter]

Thanks for the answers

 

[AlienALX]

I don't know about the Intel boards but on the newer AMD boards you get transient overshoot using LLC. It will reduce Vdroop, but when the load on CPU shifts, it will cause a voltage spike that is not shown in software. Say I have the volts set at 1.4 and use LLC 3. It might only droop down to 1.39 when loaded. When the workload on the CPU shifts, it might shoot to 1.44. If I was using LLC5, it might stay at 1.4 or might even go to 1.42 or something. When the load shifts, it can jump as high at 1.52. The only way to know for sure is using a meter on the back of the board to measure the current directly. You might check and see if there is a large on post on the board your using and see if that has been tested to see if that happens. I don't know if that is something on all new boards, or just the AMD series. But it can lead to premature burnout if your running on the bleeding edge.

My old Giga X58 UD3 did exactly that. Tons of volts. Thankfully those chips could take it !

 

[Dawelio]

What is all this really? :huh:...

 

[Dicehunter]

What is all this really? :huh:...

Good indepth video -

 

[Dawelio]

Good indepth video -

Coolio, thanks. Will take a look at a later time, due to being on holiday