Dual Channel with 4 dimm Motherboard

[MirageKnight]

I am currently using Abit NF7-S rev2.0

and

Corsair TWINX1024-3200C2PRO 1GB Kit DDR400 XMS3200

in system.

 

Thinking about upgrading to 2GB for gaming for now, and here is list of candidates:

 

Corsair TWINX2048-3200 2GB DDR400 XMS3200

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=80097-40

 

Corsair TWINX2048-3200C2 2GB Kit DDR400 XMS3200

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=80097-54

 

Corsair TWINX2048-3200PRO 2048MB DDR400 XMS3200 ProSeries

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=80097-48

 

Which one is the better than others?

Supposingly TWINX2048-3200C2?

 

Also I would like this 2GB memory work for my future PC too.

I'm not sure how difference size of Dual channel DDR work in 4 dimm configuration, but wonder if 2GB + 1GB configuration work on system in my future system.

 

As for example,

If I picked

 

MSI K8N Neo4 Platinum/SLI

 

for my motherboard (just as example);

 

Dimm1-2 Twinx 2GB

Dimm3-4 Corsair TWINX1024-3200C2PRO 1GB Kit DDR400 XMS3200

 

Will this 3GB DDR system configuration work as Dual channel?

[RAM GUY]

I would not suggest mixing these modules, if you do the system will default to DDR333. Twinx2048-3200C2 would be the best choice but you would want to use 2 modules only for best performance.