RAM Upgrade not recognized by Vista

[Grandecom News]

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?

 

[Squibbly]

i upgraded and vista recognised, but it started booting up very slowly

 

[LaRoux]

I wonder what the "official" max ram is for your motherboard. I had a Compaq
box that "officially" only supported 3x128mb (384mb). At one point I pulled
a 128 and added a 256 to take it to 512mb and it worked like a charm. Buoyed
by my success, I tried to add two more 256 to go to 768 and although all of
it was recognized in the bios, when the system booted (XP), it crawled so
slow that it was unusable. It easily took over 30 minutes to start-up and
then probably 20 more to choose shutdown. I suspected a bad memory module
but further experimenting revealed that all combinations > 512mb displayed
this behavior while any combination of 512 or less was fine.

 

[Gargoyle]

I'm not having problems with boot-up. My bios reports 2GB, my system
supports 2GB. Vista is not recognizing the upgrade.

 

[Gargoyle]

I'm not having problems with boot-up. My bios reports 2GB, my system
supports 2GB. Vista is not recognizing the upgrade.

 

[Squibbly]

maybe it doesnt recognise or support the new 3gb then