Справочник Пользователя для Samsung C670D

User’s Manual

C-2

data or damage to the product when used outside recommended 

conditions. To avoid risk of lost data, always make back-up copies of data 

by periodically storing it on an external storage medium. For optimum 

performance, use your computer product only under recommended 

conditions. Read additional restrictions in your product documentation. 

Contact TOSHIBA technical service and support, refer to 

 

section in Chapter 6 Troubleshooting for more information.

64-bit processors are designed to take advantage of 32 and 64 bit 

computing.
64-bit computing requires that the following hardware and software 

requirements are met:

■

64-bit Operating System

■

64-bit CPU, Chipset and BIOS (Basic Input/Output System)

■

64-bit Device drivers

■

64-bit applications

Certain device drivers and/or applications may not be compatible with a 64-

bit CPU and therefore may not function properly. 

Part of the main system memory may be used by the graphics system for 

graphics performance and therefore reduce the amount of main system 

memory available for other computing activities. The amount of main 

system memory allocated to support graphics may vary depending on the 

graphics system, applications utilized, system memory size and other 

factors. 
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.