From the Desktop or Start Menu, right-click on Computer and select Properties.In the System Properties window, the system will list "Installed memory (RAM)" with the total amount detected. Let me know what that is.
Yes that means it is not able to use the 8 Gb RAM. Give me a minute
Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules. I suggest you get two 8 GB modules.
Sorry that won't work. You have a 32-bit system on your laptop. The max memory the 32-bit architecture can accommodate is 4 GB's of RAM so no matter how many RAMs you add, it will only recognize up to 4 GB. You have to upgrade to a 64 bit system. If you are satisfied, please kindly provide an OK or Above Rating - so I get paid. Keep in mind you can always come back to this page at any time regarding this question. Thanks!!
You can see if your Windows 7 is 32 or 64 bit in that same window we opened. You can get the upgrade to Windows 7 64 bit:
Did you check that?