2 x 1Gb to 4 x 1Gb Question

[Earlstreetblue]

At the mo I have 2 x 1Gb OCZ OCZ2P800R22GK and will up this to 4 x 1Gb of OCZ OCZ2P800R22GK. Going to Vista x64

In order to run the 2 x 1Gb sticks I had to up the voltage from the default 1.8v to 2v.

Someone has suggested that if I run 4 sticks, I should also up the vMCH, but doesn't know to what figure.

My question is:
Is it necessary, and if so what would you suggest? I'm assuming that the vMCH is a value in NB Vcore.

TIA

 

[Earlstreetblue]

did you test it already ?

No, haven't got the memory yet (on order), just wondering if it would be necessary.

Is there anyway of telling what these auto figures for vMCH are ?

Also wondering if there is any one else with a similar set-up, what settings they are/were running.

But I suppose I should suck it and see.

 

[Earlstreetblue]

...just up the vMCH one notch at a time til they are.

I am right in assuming that vMCH is to do with the NB Vcore?
Mine is set to Auto, whatever that is.