Is it time to upgrade RAM?

Hello folks,

I have been thinking on the upgrading RAM, currently I have 512 MB on Windows 2003(P4. 2.8 Ghz) . Current usage is:

77.45% = > 115.21 MB available out of 512

Personally, I didn't notice any slow times. From your experience when should I upgrade RAM if we speak only about numbers, when it hits 90% , 95%?

thanks

 

 

 

 

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