Toshiba Power, display, installed, system configuration, lithium-ionbattery pack, Screen Resolution window, Legal Footnote (Battery Life), Battery, Video RAM

PORTÉGÉ M780

Video RAM	The memory in a computer’s graphic adaptor,
	used to store the image displayed on a bitmap
	display.
	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.
	The amount of Total Available Graphics memory
	will vary be between 1 and 2 MB depending upon
	system configuration.

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.

Legal Footnote (Memory (Main System))

For more information regarding Memory (Main System), please refer to the Legal Footnotes section in Appendix G.

Power

Battery pack	The computer is powered by one rechargeable
	lithium-ion battery pack.
Slice Expansion	This battery pack increases your computer’s
Battery	operating time when main battery pack is also
	installed.

Legal Footnote (Battery Life)

For more information regarding Battery Life, please refer to the Legal Footnotes section in Appendix G.

3-2 User’s Manual