Fujitsu 420D User Manual page 49

S e c t i o n T w o
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
power to most of your notebook. Just enough
power is left on to r ecognize the Suspend/
Resume Button and restart the rest o f your
notebook. When you resume operation it
returns to the point in the operation where it
left o before going into Save-to-Disk Mode.
P O I N T
The main advantage of using the Save-
to-Disk function is power is not re q u i re d
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 RAM
to the hard disk and time to read it back
into RAM when you resume operation.
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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
When PC 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.
C A U T I O N
Save-to-Disk Mode cannot be used as
f a c t o ry config u red if a RAM Module h a s
been added because insufficient disk space
has been allocated for the added memory.
P O I N T
The Save-to-Disk Mode re q u i res allocat-
ing a significant amount of hard disk
capacity for saving all of RAM, 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 to
i n c rease the size of the Save-to-Disk fil e ,
S AVE2DSK.BIN. (Refer to Setting Up Yo u r
Save-to-Disk File Allocation on pages
75–76 for more inform a t i o n. )