vdroop with the GA-P67A-UD3 board

[slag]

I'm getting some bad vdroop with this board. I'm using an antec basic power 500 watt ps, but have a new cooler master 750 here I can try also. I have my voltage set at 1.320 for this sandy bridge overclock, but under load, it drops to 1.272 volts which is huge. Is there a way to overcome this? Is it a product of the board, or of the power supply?

 

[Arkainium]

Sounds normal to me. Vdroop is a safety mechanism that is part of Intel's design. Read the following for a full description: http://www.anandtech.com/show/2404/5

As the article states, you can overcome it by using load line calibration, but doing so circumvents a safety protocol.

 

[Soundmanred]

What is the problem you're having?

 

[slag]

What is the problem you're having?

Lack of overclockability. I don't want to set my inital voltage too high just so it will be in the proper range when under load. I want to hit 4.6-4.7 ghz.

 

[Soundmanred]

Lack of overclockability. I don't want to set my inital voltage too high just so it will be in the proper range when under load. I want to hit 4.6-4.7 ghz.

How far have you gone with your OC?
Is it keeping you from reaching 4.6-4.7?

 

[slag]

How far have you gone with your OC?
Is it keeping you from reaching 4.6-4.7?

1.32 volts is the max so far at 4.6 ghz. I completed 41/50 IBT passes before IBT said the overclock was unstable. I'm fully stable at 1.31 volts at 4.5 ghz.

 

[Fatbird]

So u would like the Vcore to keep what u gave in BIOS when CPU under full loading?
If that is the case then set the LLC (Load Line Cal.) to Level 1. That will try to keep the Vcore u gave in BIOS.
Level 2 will keep what Vcore u gave and over it!