What is using all of my RAM within Vista Basic?

I have a Dell Inspiron Desktop that has recently been reinstalled with Windows Vista Basic.  The issue I have is the system is using 1.2GB of RAM sitting idle.  If I inspect task manager all items that are listed don't equal 1.2GB.  Is there a program similar to Space Monger for RAM?  I have also removed unwanted startup items in msconfig. Thanks in advance.

Software installed:
Avast Free
QuickBooks Pro 2011
Acronis True Image Home 2012
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Hi 1namyln,

Have you selected the "Show processes from all users" option within the task manager? there might be system processes that is not showing within the default view.

There are a lot of background task (user and system) that keep running and bring down the system speed. Check out the following pages and make changes accordingly:

Just mark "Show processes from all users" and it will get you everything
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1namylnAuthor Commented:
Show processes from All Users numbers don't add up.  Its around 500MB.
Have a look at the device manager and view your Graphics card, odds are your graphics card is using 700MB of Ram./ You might be able to lower it in the Bios.

Another method would be.

Selecting start > run > type in "dxdiag" and select enter.
Display 1 will indicate the amount of memory used by the display.
1namylnAuthor Commented:
@Moomin83, the numbers are closer now once I add the video allocation.  Until now I didn't know that amount of RAM was calculated into the equation.  Video is 286MB's.

Now that I think about it, my video statement is incorrect! The video memory will be deducted from available memory before hand.
1namylnAuthor Commented:
I added everything up and the number is barely over 500MB.
I would suggest running a diagnostic tool to see what is happening with your computers memory. something like:

in task manager select process tab, then  View>Select Columns>      you have a lot of options then, eg  : Process Memory - Working Set Size

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1namylnAuthor Commented:
I see things now that I did not before.  Makes more sense.  Thank you
you're welcome
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Windows Vista

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