Sony PCG-V505EXP - Manual (Page 141)

Confirming added memory capacity
After you've installed a new memory module, make sure the operating system recognizes it.
To check your system's memory
1. Turn on the computer.
2. Click Start on the Windows ® taskbar, point to All Programs, and then point to Sony Notebook Setup.
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 size may be less than the installed memory size due to the amount used by the display
adapter.
Sony Notebook Setup
Page 141