GB-P67A-UD4 (1.0): Core voltage drop under load

[rdh]

BIOS: F7B

2600K
42 x 100
Core: 1.275
PLL: 1.780

PLL Overvoltage: Enabled
Load Line Calibration: Enabled

It seems a few people are suffering from this - and changing MB brands which work without issue.

Any ideas? I may swap this for another brand as it seems to be limiting the potential of this setup, it drops 0.1v in some cases. At the moment its dropping 0.015.

[Dark Mantis]

Hi
 
Is this just a glitch in the BIOS version though ?

0.015v is not a big problem I wouldn't say but I agree that 0.1v is a different matter.

[rdh]

I can live with 0.015, which it seems to be consistent at the moment.

That's what I'm hoping - a BIOS update (soon)

[Dark Mantis]

Well please post back here if you get any news. 

[Ziddith]

My UD3 drops alot aswell, but it lacks the VRM which I guess is what prevents big drops. But under max load it drops 0.1v which is alot. Just find it weird there is a LLC setting on my board since it only helps with 0.01v if even that.

[Bradleyo]

Might this be a problem with different power supplies, since it seems to be happening only with some people, but not all?  If it was a board or bios problem, then everyone would be experiencing this problem, right?

[Dark Mantis]

Yes that's a good point Bradleyo. Usually in these situations it is a combination of things that causes the problem when brought together.

[rdh]

For the record, mine is a Corsair HX 620. Not sure why the PSU would cause a voltage drop under load (you'd expect a BSOD) - the fact it can be reduced via settings could indicate its linked to an algorithm (i.e. the BIOS).

Enabling both LLC and PLL OV is keeping the drop at 0.015.