Octagon PC-500, User Manual

Page: 210 / 233

B-13
PC-500 user’s manual Software utilities
Syntax
PHDISK
Remarks
This program modifies the partition table on an IDE hard drive so that
a “save to disk” can be performed. The size of the partition includes
system information such as interrupt controllers, floppy disk controller,
etc. It also includes video RAM and system DRAM contents. Since the
DRAM contents are included, the size of system DRAM (at the time
PHDISK is executed) is used in calculating the size of the partition. A
4 MB DRAM system requires more than 6 MB of partition space. Once
created, it cannot be enlarged without destroying other partitions.
WARNING!
If a partition already exists on the hard drive, this program
will destroy it! Execute PHDISK first, then install other
partitions using FDISK or other OS partitioning programs.
To use the save to disk feature, the PMISETUP SAVE-TO-DISK option
must be set to Y. The IDE drive must also be the first drive, therefore
the SETSSD /after option should be used. The save to disk feature
works with true IDE drives only.
See the FDISK command in your DOS manual for more information
about partitions.
See the SETUP programs chapter for information on PMISETUP. See
the CPU power management chapter for more information on save to
disk.
See also
PMISETUP.EXE (save-to-disk), SETSSD.EXE.
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PICOFA.SYS
Purpose
An alternate way to access the on-board SSD. By using this driver, it is
possible to free up the address area at D8000h-Dffffh by removing
jumper x.