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Chapter 4
♦
Memory Hole – [Disabled], or [1MB]
This field specifies the size of an optional memory hole, below 16MB. Access to the memory
addresses inside the memory hole region are forwarded to the PC/104 bus, where memory
mapped PC/104 devices have access.
♦
Shadow D000-D3FF – [Disabled] or [Enabled]
These Shadow fields specify if BIOS option ROMs in the indicated segments should be
shadowed to RAM. Shadowing option ROMs can potentially speed up the operation of the
system. The indicated segments are only for option ROMs present on add-on PC/104 and
PC/104-Plus cards.
♦
Shadow D400-D7FF– [Disabled] or [Enabled]
♦
Shadow D800-DBFF – [Disabled] or [Enabled]
♦
Shadow DC00-DFFF – [Disabled] or [Enabled]
• Power Management
♦
ACPI – [Disabled] or [Enabled]
If this field is set to [Enabled], the Advanced Configuration and Power Interface API is turned on
and available for any Operating System that supports ACPI power states.
♦
APM – [Disabled] or [Enabled]
If this field is set to [Enabled], the Advanced Power Management API is turned on.
The power management feature is an older standard and may not be as widely supported
today as it once was. The current preference for power management control is ACPI.
• Advanced features
♦
Post Memory Manager – [Disabled] or [Enabled]
If this field is set to [Enabled], the Post Memory Manger API is turned on. The Post Memory
Manger can be used by BIOS option ROMs to allocate memory in a well defined way.
♦
CPU Serial Number – [Disabled] or [Enabled]
If this field is set to [Enabled], the internal serial number in the Intel CPU is accessible by the
Operating System and/or Applications that can make use of this information..
♦
Watchdog Timeout (sec) – [select whole number between 255 seconds and 1 second,
in 1 second increments] or [Disabled]
If this field is enabled by selecting a time interval (1 to 255 seconds), it will direct the
watchdog timer to reset the system if it fails to boot the OS properly. Refer to the watchdog
timer section in Chapter 3 for more information.
♦
Serial Console – [Hot Cable] or [Enabled]
∗ The Hot Cable option only allows console redirection when a Hot Cable is actually
connected to Serial 1 or Serial 2 (COM 1 or 2). Use the modified serial cable
described in Chapter 3, under Hot (Serial) Cable.
∗ The [Enabled] option instructs the BIOS to operate in the console redirection mode at
all times with the serial port selected in the Serial Console > Port field listed below.
Use a standard null-modem serial cable.
∗ However, connecting a Hot Cable to the other port (port not selected) overrides the
setting of this field [Enabled] and the Serial Console > Port field.
•
Port – [3F8h], [2F8h], [3E8h], or [2E8h]
This field selects the COM (Serial) port address used for console redirection when
[Enabled] has been selected in Serial Console. Use a standard null-modem serial cable.
64
Reference Manual
BIOS Setup Utility
ReadyBoard 800
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