Fujitsu 420D, User Manual

Page: 47 / 160

U s i n g Y o u r L i f e B o o k 4 0 0 S e r i e s
L i f e B o o k 4 0 0 S e r i e s f r o m F u j i t s u
39
P O I N T
The main advantage of using the Save-to-
Disk function is power is not re q u i red to
maintain your data. This is part i c u l a r l y
i m p o rtant if you will be leaving your note-
book in a suspended state for a pro l o n g e d
period of time. The drawback of using
Save-to-Disk Mode is that it lengthens the
power down and power up sequences,
since it takes time to write all of the R A M
to the hard disk and time to read it back
into RAM when you resume operation.
Your notebook’s RAM typically stores the file(s)
on which you are working, the open applica-
tion(s) and any other data required to support
the operation(s) in progress. When the Save-to-
Disk function is activated your notebook saves
the contents of the RAM to a file on the inter-
nal hard disk,and then automatically shuts o
ff
power to most of your notebook. Just enough
power is left on to recognize the Suspend/
Resume Button and restart the rest of your
notebook. When you resume operation it
returns to the point in the operation where it
left o
ff
before going into Save-to-Disk Mode.
P O I N T
If power is lost during Save-to-Disk
Mode the data will be retrieved automat-
ically as soon as power is returned.
P O I N T
The Save-to-Disk Mode re q u i res allocat-
ing a significant amount of h a rd disk
capacity for saving all of R A M, which
reduces the usable disk space. When you
p u rchase your notebook it will have space
allocated for the memory installed. If you
upgrade the original system by adding
Expansion Memory without changing the
size of the Save-to-Disk allocation you
will get an error message when you try
to activate the Save-to-Disk Mode and it
will not work. Use the PHDISK Utility t o
i n c rease the size of the Save-to-Disk fil e ,
S AV E 2 D S K . B I N. (
Refer to Setting Up Yo u r
Save-to-Disk File Allocation on page 73
for more inform a t i o n
. )
P O I N T
When PCMCIA cards or external devices
are in use, Save-to-Disk Mode cannot
return you to the exact state prior to
suspension because all of the peripheral
devices will be re-initialized when the
system restarts.