Sony VAIO PCGNV200 Series User Manual page 158

Confirming added memory capacity
After you've installed a new memory module, make sure the operating system's memory corresponds with the memory
upgrade.
To check your system's memory
1.
Turn on the computer, or restart the computer if it is already on.
2.
Click Start on the Windows
3.
Select Sony Notebook Setup from the submenu. The Sony Notebook Setup dialog box appears.
4.
On the About This Computer tab, make sure the System Memory displayed in the System Information box
matches the amount of memory installed.
The displayed memory may be less than the installed memory due to the amount used by the display adapter.
Sony Notebook Setup Dialog Box
taskbar, point to All Programs, and then point to Sony Notebook Setup.
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