Specifications

BIOS Configuration
EPC-100 Hardware Reference 3-14
Plug & Play OS
If enabled, this option informs the System BIOS that the operating system that is
booted supports Plug and Play. This forces the Plug and Play portion of the System
BIOS to only configure motherboard devices and those peripherals that are necessary
for booting (display, hard disk, etc.). Thus the operating system must configure the
other devices and peripherals. The default is “No”.
Reset Configuration Data
If enabled, this option clears the Extended System Configuration Data (ESCD) block
residing in FBD main block #2. This is necessary the first time a system is turned on
or if the ESCD becomes corrupted. The default is “No”. This option is
automatically reset to “No” after the ESCD is cleared.
Halt on watchdog reset
If enabled, this option causes the System BIOS to halt the boot process if it detects
that a watchdog timer reset occurred. The default is “Disabled”.
Watchdog Timer Interrupt
This option specifies how IRQ9 is used by the watchdog timer. The possible
selections are “Auto” and “Watchdog Timer”. When set to “Auto”, IRQ9 is available
for use by PCI devices. When set to “Watchdog Timer”, IRQ9 is reserved for use by
the watchdog timer. The default is”Auto”.
Large Disk Access Mode:
If a hard disk larger than 528MB is being used, this selection should be set to “DOS”
if running MS-DOS, or set to “Other” if using a different operating system. When set
to “DOS”, this selection causes the System BIOS to perform cylinder/head
translation if the drive is configured in Setup to have more than 1024 cylinders. This
allows MS-DOS systems to use hard disks up to 8GB (1024C x 255H x 63S) in size
without special drivers or LBA. The default is “DOS”.
User BIOS Extensions
These items control the loading (shadowing) of BIOS extensions contained in the
FBD main block #3. Note that there are actually three groups of Setup items to
control the shadowing of up to three BIOS extensions. The screen graphic only
shows the first group.