Toshiba Portege R400 User Manual
Page 40
3-2
User’s Manual
Features, Utilities and Options
Memory
Power
Slots
512, 1,024 or 2,048MB memory modules can be
installed in the computer’s two memory slots for a
maximum of 4,096MB system memory.
Video RAM
The Video RAM capacity will differ depending on
the system memory capacity in the computer.
■
If system memory is 512MB, a maximum of
64MB will be used as Video RAM.
■
If system memory is 1024MB or more,
a maximum of 256MB will be used as Video
RAM.
Legal Footnote (Memory (Main System))
For more information regarding Memory (Main System), please refer to
Appendix G,
Battery pack
The computer is powered by one rechargeable
lithium-ion battery pack.
2nd Battery Pack
This battery pack increases your computer’s
operating time when main battery pack is also
installed.
Legal Footnote (Battery Life)
For more information regarding Battery Life, please refer to Appendix G,
.
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 adapter is universal, it can receive a
range of AC voltages from 100 to 240 volts,
however you should note that the output current
varies among different models. Using the wrong
adapter can damage your computer. Refer to the
section in Chapter 2,
.