Vista - Vista 64 Installed Physical Memory vs Total Physical Memory

I'm running Vista 64 Home (SP1) Premium on a homebuilt machine
w/8GB (4 X 2GB modules). Windows is reporting 8 GB of Installed
Physical Memory but is reporting only 4 GB of Total Physical Memory.

I first noticed this when, after installing a game, the game system
specs said 3092 MB of RAM.

I have checked the BIOS and it recognizes 8 GB. Memory Remapping
is Enabled. Under Memory Remapping is "PCI MMIO Allocation:
4GB to 3328 MB" (?)

MSConfig Boot Options shows Max Memory is not checked and no
value in the box below. I tried enabling it and using 8192 as the value,
but it made no difference.

DxDiag shows 8 GB installed RAM.

Any ideas on how I can get windows to make available all 8 GB of RAM?

(Motherboard is ASUS Maximus II Extreme w/Intel Q9550 processor running
at Q9650 clock speed, memory running at 1127 MHz)

Thanks,
Fitz
--
Your body is a temple boy,
You ought to treat it well
But you trash the place and rent it out
Like it's some cheap motel - The Badlees

Fitz wrote:most likely the case is that the game is not 64 bit compatible.. that is, a 32
bit application running on 64 bit Vista will see only 4GB memory, even if you
have more than 4GB installed..

see:
http://msdn.microsoft.com/en-us/libr..._windows_vista

I would agree, except that Windows System information is showing 4GB Total Memory, even though
it shows 8GB Physical Memory Installed.

Fitz
--
Your body is a temple boy,
You ought to treat it well
But you trash the place and rent it out
Like it's some cheap motel - The Badlees

Fitz wrote:Where is "Windows" reporting 4 GB total memory and 8GB installed memory? What
program(s) are you running that show you this?

What does something like CPU-Z show?

Thanks for that - the run command info was really helpful!

Fitz

Keith H's previous post was like this :It looks like common mistake.

64bit executables are not in syswow64, but in system32.
( MS logic )

Short look to Process Explorer will show you
systeminfo from syswow64 is 32bit app.

--
Poutnik
The best choice is such a choice,
that causes the least number of people
to complain it is NOT the best choice.

I just found this issue on my machine also. I have the same thing in the bios that you have. I have followed all suggestions I can find and still the same thing. If windows doesn't see it, I dont see how it could have anything to do with the program your are running. I would understand if a 32bit program can only use 4gb. I want all 8 for as much as possible.

This is annoying.

"seaborn" <guest@xxxxxx-email.com> wrote in message
news:e80089d7d7ea38a334ccbaec33b4ea0e@xxxxxx-gateway.com...seaborn

I'm late coming to this thread, but if it's concerning the system
informatrion aplet reporting memory as stated in the subject, it's a bug in
the program. There is a lot of discussion on this topic on the web and a hot
fix is available. Basically if Task Manager etc. report all you memory (say
8 GB) then you are good to go.

Jim