PC Specialist's Handbook ErgoPro e-, x- and s- Series
First Edition, Release 4 - June 1998 Page 35
3F8H:IRQ4 (COM1)
Sets the base address and interrupt level to this value.
2F8H:IRQ3 (COM2)
Sets the base address and interrupt level to this value.
Disabled
Disables either one or both ports, depending on the number of available ports.
Shadow option ROMs
This parameter, when enabled, copies the ROM (Read-Only Memory) of expansion boards to the RAM memory
between C0000H and DFFFFH on the system board, thereby speeding up performance considerably.
Some ROMs, such as the system board ROMs (system BIOS and VGA BIOS) are always shadowed, other
expansion board ROMs cannot be shadowed, and others you can choose to shadow using this parameter.
To enable shadowing:
1.
Press ENTER on the Shadow Option ROMs parameter to toggle between Enabled and Disabled.
2.
An entry window appears listing information on installed optional ROMs, shadowing, and the size and
location of the starting address of each shadowed ROM.
3.
The Shadowable column indicates if a ROM is:
automatically shadowed (Yes)
never shadowed (No)
shadowed at your option (-)
Keyboard
This parameter controls whether or not messages about keyboard errors are displayed during the power-on self-
test. Pressing ENTER toggles between the values Installed and Not installed.
If you use the system unit without a keyboard, for example, as a server, set this parameter to Not installed.
Otherwise, keep the default value Installed.
If you have set the parameter to Not installed, you can still connect a keyboard to the system unit, for example,
when you need to view or change SETUP parameters.
Configuration port
This parameter controls the configuration of the I/O address range (2) which is occupied by the system registers.
The default value of 120H should only be changed if the same address is needed by an expansion board. In this
case, press ENTER on the parameter, choose one of the available values, 120H, 130H or 140H, and press
ENTER to accept the value.
BIOS reload
Use this parameter when you want to initiate a BIOS reload. The BIOS of your system is placed in a write
enabled, non-volatile memory called FLASH RAM, and an update is supplied on a 3.5-inch, 720 kB/1.44 MB
diskette.
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