Toshiba L755D User Manual

Page of 194
User’s Manual
3-2
Hardware, Utilities and Options
Memory
Power 
Memory slots
1 GB, 2 GB or 4 GB memory modules can be 
installed in the computer's two memory slots for a 
maximum of 8 GB system memory.
This computer can be equipped with memory 
modules of a maximum size of 8 GB. The actual 
amount of useable system memory will be less 
than the installed memory modules.
Video RAM
The memory in a computer's graphics adaptor, 
used to store the image displayed on a bitmap 
display.
The amount of Video RAM available is 
dependent on the computer's system memory.
Start -> Control Panel -> Appearance and 
Personalization -> Display -> Adjust 
resolution.
The amount of Video RAM can be verified by 
clicking the Advanced Settings button in the 
Screen Resolution window.
If your computer is configured with more than 3 GB memory, 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. 
Computers configured with a 64-bit operating system can address 4 GB or 
more of system memory.
Legal Footnote (Memory (Main System))
For more information regarding Memory (Main System), please refer to the 
Legal Footnotes section in Appendix F.
Battery pack
The computer is powered by one rechargeable 
lithium-ion battery pack.