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Guess what it the memory on my system from below?

enter image description here

It is 3GB but it show 4.8? Why

On my different computer, it is running Windows Server 2003, it has 2 GB installed but it show 4GB (Limit field).

Can someone explain that, what does Limit mean. The available address space or total memory on system?

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Total Physical Memory: 3134356 KB Where do you get 4.8 GB from? – Dennis Nov 28 '11 at 19:45
True I was reading the wrong value. I usually go by the bar and got confused. – Dave Nov 28 '11 at 20:07
@Dave: What bar? I don't see any graphs labeled memory. . . – surfasb Nov 29 '11 at 0:51
Just above 1.48 GB. I thought this represented the actual memory. – Dave Nov 29 '11 at 0:57
up vote 2 down vote accepted

The commit limit can exceed physical memory. The commit limit is the maximum amount of pagefile backed virtual memory that could be consumed without any new virtual memory being allocated. It's how much pagefile+RAM the system could need, maximum, without any new specific allocation requests.

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