I bought PMDG MD 11 and in the documentation it states that with XP FSX cannot access more than 2GB RAM unless a patch is download.
I have Vista 64 bit with 4GB RAM. Does the same apply?
Not sure about that but it can't use dual cores without SP1 and SP2.
Sp2 will access all cores but SP1 has to be in place first.
I have SP1 and SP2 installed
Sorry. I should have put this on the FSX forum
You should be accessing all the ram FSX needs.
I know someone who has Vista 64bit and changed his ram from 4 gigs to 8 gigs and see a slight difference.
He got it now, for the future with Windows7.