dimm's info

[RadBrad]

thanks

 

[Acanthus]

They all have to be the same speed, i think you can get away with different capacity.

For example:

Slot 1 512MB
Slot 2 256MB
Slot 3 512MB
Slot 4 256MB

This config would work, but remember for stability with dual channel you have to run at the slowest modules speed and timings.

 

[mechBgon]

Assuming you mean Intel i865 or i875, modules 1 & 3 should have the same logical organization as eachother, and 2 & 4 likewise, but they don't all have to match eachother. So this would work:

1 & 3: double-sided 512MB modules
2 & 4: single-sided 256MB modules

but this wouldn't:

1 & 3: double-sided 512MB modules
2 & 4: 256MB modules, but one single-sided and one double-sided

The concept to remember is that the chipset wants to use two modules as one combined 128-bit-wide (or 144-bit-wide) data path, so the addressing needs to work the same on both modules in a given pair. Anand talked more about it in his i865/i875 introduction if I recall correctly...

*goes article-hunting*

Well, it doesn't really shed a lot more light, but here's the article.

 

[RadBrad]

*goes article-hunting*

Many,Many thanks.🙂

 

[mechBgon]

You're welcome 😎