Memory single / dual channel

[G_Noraa]

I'm going to build a new rig. It´s going to be a dual opteron 244 on a MSI K8T Master2-Far. I have started to read the manual and some customer reviews over this motherboard and I find that to have the memory working on dual channel 128 bits, you must have the four banks filled up with the same memory modules, if you just use 2 banks, the memory will work in single channel 64 bits. Here goes my question: If I install my OS (Windows XP pro) with just two banks (64 bits) will there be any problem if later on I install another two banks and have it on 128 bits? Would it be a better idea to make a new fresh install with the memory working in 128 bits?

Thanks for your comments.

[diehrd]

It should be fine adding memory later and going dual channel...

Welcome to the forums ..

[G_Noraa]

Thank you, you already gave me some advise over a problem I had with my raid card in my KD7, I have already RMA it and I will see what happens.