Teknor Industrial Computers TEK-CPCI 1003, Техническое справочное руководство

Страница: 75 / 122

TEK-CPCI-1003 Technical Reference Manual
12-8
BIOS Features Setup (Continued)
Option
BIOS
Default
Setup
Default
Possible
Settings
Description
Typematic Rate
Setting Dis. En. En., Dis. When Disabled, the following Typematic Rate and Typematic
Delay are irrelevant. Keystrokes repeat at a rate determined by
the keyboard controller in your system. When Enabled, you can
select a typematic rate and a typematic delay.
Typematic Rate
(Chars/Sec) 30 30 6 ..30 char.
Per sec. When Enabled, you can select a typematic rate (the rate at which
characters repeat when you hold down a key).
Typematic Delay
(Msec) 250 250 250, 500, 750,
1000 ms When Enabled, you can select a typematic delay (the delay before
keystrokes begin to repeat).
Security Option Setup Setup Setup, System If you have set a password, select whether the password is
required every time the system boots (“System” option), or only
when you enter Setup (“Setup” option).
PCI/VGA Palette
Snoop Dis. Dis. En., Dis. Palette snooping allows multiple VGA devices operating on
different buses to handle data from the CPU on each set of palette
registers.
When set to Enabled, data read and written by the CPU is
directed to both the PCI VGA device’s palette registers and the
ISA VGA device’s palette registers, permitting the palette registers
of both to be identical.
When Disabled, data read and written by the CPU is only directed
to the PCI VGA device’s palette registers.
OS Select For DRAM
>
64MB
Non-
OS2
Non-
OS2
Non-OS/2,
OS/2 Select OS2 only if you are running OS/2 with greater than 64MB
of RAM.
Video BIOS Shadow Dis. En. En., Dis.
C8000-CBFFF
Shadow Dis. Dis. En., Dis.
CC000-CFFFF
Shadow Dis. Dis. En., Dis.
D0000-D3FFF
Shadow Dis. Dis. En., Dis.
D4000-D7FFF
Shadow Dis. Dis. En., Dis.
D8000-DBFFF
Shadow Dis. Dis. En., Dis.
DC000-DFFFF
Shadow Dis. Dis. En., Dis.
Software that resides in a read-only memory (ROM) chip on a
device is called
firmware . Award permits shadowing of firmware
such as the system BIOS, video BIOS, and similar operating
instructions that come with some expansion peripherals.
Shadowing copies from ROM into system RAM, where the CPU
can read it through the 16-bit or 32-bit DRAM bus. Firmware not
shadowed must be read by the system through the 8-bit X-bus.
Shadowing improves the performance of the system BIOS and
similar firmware for expansion peripherals.
Enable shadowing into each section of memory separately. Many
system designers hardwire shadowing of the system BIOS and
eliminate a System BIOS Shadow option. Note that on a PCI VGA
card (onboard or offboard), the VGA BIOS is always shadowed.
Video BIOS shadows into memory area C0000 plus the VGA
BIOS size. The remaining areas between C0000 and DFFFF
shown on the BIOS Features Setup screen may be occupied by
other expansion card firmware. If an expansion peripheral in your
system contains ROM-based firmware, you need to know the
address range the ROM occupies to shadow it into the correct
area of RAM.
Watchdog Timer Dis. Dis. En., Dis. Enable this option to toggle the watchdog with the watchdog timer
during the BIOS bootup.
Watchdog After POST Dis. Dis. En., Dis. When the watchdog is set, use this option to continue toggling the
watchdog with the watchdog timer after the bootup.
Save CMOS in Flash Dis. Dis. En., Dis. When Enabled, the CMOS RAM Setup will be restored from the
Flash BIOS at each power up. If the battery fails, only the date
and time could be lost.