Aaeon PCM-4330 Instructions Manual page 123

To use the on-board flash module on the PCM-4330 board to emulate a hard
disk drive (silicon disk) follow these steps:
The BIOS version on the PCM-4330 board must be 1.0c or higher to support the
memory module.
To emulate a silicon disk, the 8105 extension requires that the memory area
in which the extension is started is available as Shadow-RAM.
The ROM extension is started in area CC00 — CFFF. Therefore, this segment
must be set to Shadow RAM in the setup menu (see page 23).
The emulation uses area D0000— D3FFF as a window to the memory module.
Consequently, no other program or driver may use this area. Additionally,
Shadow-RAM needs to be disabled for this segment.
To disable loading the 8105 extension, simply set the CMOS-RAM date to
the year 2099. If the year is set to 2098, only a part of the extension is loaded.
The modifications for INT 13 will not be loaded.
To set up the 8105 extension, enter the following command at a DOS prompt:
Do not cancel the program with a reset. This might otherwise render
the computer inoperative since the 8105 may be deleted.
Before using the silicon disk it must first be initialized with the memcform pro-
gram. A signature and further parameters enable the 8105 extension to
identify and access the disk. A drive number needs to be assigned to the disk
before the formatting process:
Select values "0" to "9" for drive numbers 0x80 to 0x89 or values "A" to "F"
for drive numbers 0xFA to 0xFF.
If a drive number is selected which is smaller or equal to a number of an ex-
isting hard disk drive, the number of the hard disk drive is raised for INT 53.
Choose any drive number if no hard disk drive is installed in the system.
If value "0" (corresponding to drive number 0x80) is selected for the silicon
disk in a system with a hard disk drive, drive letter C: is assigned to the silicon
disk and letter D: to the hard disk. Value "F" swaps drive letter assignments
(letter C: for the hard disk drive and letter D: for the silicon disk).