SD 168pin 64x4 and 32x64 in same motherboard?

Nevermind, I allready tried it and my monitor didnt respond. Same thing that happen with my other comp, but I didnt take my old ram out like I should have. If I am correct I can download a Bios update for my motherboard so it can support high density standard ram? I have an IBM NetVista 6794 NZU. but I cant find anything that will update the ram.
 
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