MAINBOARD BIOS SETUP
MAINBOARD BIOS SETUP
P5T30-B4 User’s Manual
24
Gate A20 Option -
This entry allows you to select how the gate A20 is handled. The gate
A20 is a device used to address memory above 1 Mbytes. Initially, the gate A20 was
handled via a pin on the keyboard (
Normal
). Today, while keyboards still provide this
support, it is more common, and much faster, for the system chipset (
Fast;
default) to
provide support for gate A20.
Typematic Rate Setting -
Determines if the typematic rate is to be used. When disabled,
continually holding down a key on your keyboard will generate only one instance. In other
words, the BIOS will only report that the key is down. When the typematic rate is enabled,
the BIOS will report as before, but it will then wait a moment, and, if the key is still down,
it will begin to report that the key has been depressed repeatedly. This feature is used to
accelerate cursor movements with the arrow keys.
Typematic Rate (Chars/Sec)
-
When the typematic
rate is enabled, this selection allows you to select
the rate at which the keys are accelerated:
Typematic Delay (Msec)
-
When the typematic rate
is enabled, this selection allows you to select the
delay (in msec) between when the key was first
depressed and when the acceleration begins.
Security Option
-
This option enables password
checking every time the computer is powered on
or
every time BIOS Setup is executed. If
System
is chosen, a user password prompt appears every time the computer is turned on. If
Setup
is chosen, the password prompt appears only when the BIOS Setup program is
executed. Refer to the section
Supervisor Password
for more information.
PCI / VGA Palette Snoop
-
This option must be set to
Enabled
if any ISA MPEG card
installed requires VGA palette snooping. The settings are
Disabled
or
Enabled
.
Assign IRQ For VGA
-
The
Enabled
option allows you to auto-route an IRQ for use by a
VGA card.
OS Select For DRAM > 64MB -
This should be set to
OS2
if you are running IBM OS/2
with more than 64MB of RAM in the system. Otherwise, the setting should be
Non-OS2
.
Report No FDD For WIN 95 -
While the FDD in “STANDARD CMOS SETUP” is set to
NONE, set this option to
No
to release IRQ6 for passing Win95 logo. This option is
irrelevant under normal operation.
Video BIOS Shadow
-
This option controls the location of the contents of the 32KB of
Video ROM beginning at the C0000h memory location. The settings are:
Enabled
The contents of C0000h-C7FFFh are written to the same address in system
memory (RAM) for faster execution.
Disabled
The video ROM is not copied to RAM. The contents of the video ROM cannot be
read from or written to cache memory.
6
6 characters per second
8
8 characters per second
10
10 characters per second
12
12 characters per second
15
15 characters per second
20
20 characters per second
24
24 characters per second
30
30 characters per second
Summary of Contents for P5T30-B4
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