Toshiba PPM78U05L01E User Manual

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User’s Manual
PORTÉGÉ M780
Under some conditions, your computer product may automatically 
shut-down. This is a normal protective feature designed to reduce the risk 
of lost 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. 
Contact Toshiba technical service and support, refer to 
 
section in Chapter 8, 
, for more information.
64-Bit Computing
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. 
Memory (Main System)
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. Only computers configured with a 64-bit operating system can 
address 4 GB or more of system memory.
Battery Life
Battery life may vary considerably depending on product model, 
configuration, applications, power management settings and features 
utilized, as well as the natural performance variations produced by the 
design of individual components. Published battery life numbers are 
achieved on select models and configurations tested by Toshiba at the time 
of publication. Recharge time varies depending on usage. Battery may not 
charge while computer is consuming full power. 
After going through many charge and discharge cycles, the battery will lose 
its ability to perform at maximum capacity and will need to be replaced. 
This is a normal phenomenon for all batteries. To purchase a new battery 
pack, see the accessories information that is shipped with your computer.