Hardware, Utilities and Options

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))*3

For more information regarding Memory (Main System), please refer to the Legal Footnotes section in Appendix G or click the *3 above.

Power

Battery pack

The computer is powered by one rechargeable

 

lithium-ion battery pack.

 

 

Legal Footnote (Battery Life)*4

For more information regarding Battery Life, please refer to the Legal Footnotes section in Appendix G or click the *4 above.

RTC battery

The internal RTC battery backs up the Real Time

 

Clock (RTC) and calendar.

 

 

AC adaptor

The AC adaptor provides power to the system

 

and recharges the batteries when they are low. It

 

comes with a detachable power cord which will

 

either have a 2-pin or 3-pin plug enclosure.

 

As the AC adaptor is universal, it can receive a

 

range of AC voltages from 90 to 264 volts,

 

however you should note that the output current

 

varies among different models. Using the wrong

 

adaptor can damage your computer. Refer to the

 

AC adaptor section in Chapter 2, The Grand

 

Tour.

 

 

User’s Manual

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Image 68
Toshiba Pro L670D, L675 Legal Footnote Memory Main System*3, Power, Legal Footnote Battery Life*4, RTC battery, AC adaptor