Normal RAM Usage

che0063

Honorable
Jan 31, 2014
152
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10,710
Hi everyone!
I want to know what the normal memory usage is when my ASUS Windows 7 laptop is idle without any applications running.
I have 3691MB of RAM

When it has just booted, it is stable around 1GB
After sleep, it can run on just 500~600MB.

Also if it its possible, how much RAM can I upgrade to?