Okay. I'm having the same problem. I just installed 2 more gig on top of my 2
gig on my rig and not only does vista say that it is 3.5 gig, but it keeps
crashing and is acting really odd. I've gotten the Blue screen many times. It
isn't the new ram because bios loves it and my mobo supports up to 8 gig.
Dxdiag tells me that my geforce 8600gt xxx has 1774 mb of ram when I have the
4 gig ram installed but I'm still crashing. I even took out one of my 1 gig
sticks and I am still crashing. I am running 32 bit vista ultimate and can't
exactly afford to go out and buy a 64 bit vista. I have tried all the updates
with no results. So what is a solution to my hangups? Thanks in advance.

"JC" wrote:

I have 4GB of physical RAM, windows vista shows only 3326MB. Does it really
help with performance if I have 4GB or should I just install 3GB memory? I
just bought the additional 2GB memory (had 2GB before) and wondering if I
should exchange for a 1GB one. Thanks.