Toshiba Satellite Pro L450-EZ1543 User Manual - Page 23

L450/L450D Features This computer incorporates the following features and benefits: Processor Built-in Chipset The processor type varies depending on model. To check which type of processor is included in your model, open the TOSHIBA PC Diagnostic Tool Utility by clicking Start -> All programs -> TOSHIBA -> Utilities -> PC Diagnostic Tool. Mobile Intel® GM45 Express Chipset Mobile Intel® GL40 Express Chipset AMD M780V chipset AMD M780G chipset Memory Slots PC2-6400 1GB, 2GB or 4GB memory modules can be installed in the two memory slots. Maximum system memory size and speed are depending on the model you purchased. For users of a 32-bit version of Windows: If your computer is configured with two 2 GB memory modules or more, the memory might be displayed as approximately 3 GB only (depending on the computer's hardware specifications). This is correct because the operating system usually displays the available memory instead of the physical memory (RAM) built into the computer. Various system components (like the video adapter's GPU and PCI devices like Wireless LAN, etc.) require their own memory space. Since a 32-bit operating system cannot address more than 4 GB of memory these system resources overlap the physical memory. It is a technical limitation that the overlapped memory is not available to the operating system. Even though some tools might display the actual physical memory built into your computer, the memory available to the operating system will still be approximately 3 GB only. ■ Maximum size of memory that can be installed on Mobile Intel® GL40 Express Chipset models is 4 GB. ■ PC2-6400 memory module works as PC2-5300 speed on AMD Athlon™ 64x2 Dual-Core Processor. User's Manual 1-3