Load Line Calibration

MoodyB

MoodyB

MoodyB

Soldato
Joined
12 Jan 2003
Posts
3,749
Location
Motherwell, Scotland
Hey all,

Just wondering what the general opinion around here is regarding LLC ?

Some review sites leave it on, others turn it off. I've read the article on it over at AnandT, but I'm undecided which way to go with it.

I had it off on my previous Gigabyte x58 board, but having recently switched to an Asus P55 the vdroop is quite noticeable when upping vcore around 1.4v.

Maybe worth a poll ?
 
The only reason why a review site would leave it off is to measure the vdroop. Vdroop is normal as per Intel specification however it can sometimes be so bad as to cause the pc to become unstable during overclocking hence why most enable LLC to provide a more stable voltage provision to the CPU.
 
personally i leave it off, as the idea of ruining (or at least degrading to the point of having to reduce an OC) an expensive chip through transient voltage spikes worries me a tad.

it's probably fine for the lifetime that people usually have a setup for, but i feel i'm going to have this one for a while at least, and so would like the ability to up my overclock when (if) it starts to struggle.
 
Won't be much, You would have to be on the edge of overclocking as well for the spikes to really cause a problem.

Example is my chip runs at 4.2ghz @ 1.28v load, would have to spike by .1v for it to just go over intel spec.

I personally ran with Lvl 1 LLC on my GB board which gave a little droop rather than a large amount with it off, Lvl 2 LLC would increase it under load (which is what my 2 previous boards had done)

I personally think its a bit of a non-issue
 
When I have it on, my q9650 does 4GHz on stock volts (1.285v) but with it off, I need 1.3v+ for it to be stable because of vdroop so I have it on
 
hmmm, might have to have a tinker then, as i remember reading on here a while ago someone saying that transient spikes *could* be as high as 2v, but obviously for less than a nano-second
 
Leave it on, you don't need to worry about voltage spikes with an Asus board.

The intel max spec for i3 is 1.4v and i5 is 1.45 but you will never need to go even near that high to get 4Ghz with most chips anyway.

Hope this helps!
 
Been using it for a year on the board in sig, (asus p6t dlx v2), no problems, also used it on a p5q deluxe with a q6600 and a q9550 for almost two years, again never had any problems.
 
Yep, used it on all my boards and chips with no issues, very much doubt it will ever hit 2v on a spike!

Only known of this article on Anandtech testing the QX9650 which gives some good information about it.

However for the amount of people that run LLC you would expect to see many issues on forums about it if it was such an issue. I will continue to use it myself based on my own experience
 
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