have Windows Vista Premium on a Dell 1501 Inspiron.

I replaced X2 512 Ram with X2 1024 Ram.

The system Bios reports:

633 System
1964032 Extended

Bios Version 2.1.0

Windows Vista still reports memory as being 895. (ATI Radon Xpress Video
Hyper memory takes up 319).

How do I fix this?