TYAN TOMCAT I915 User Manual page 37

Tomcat i915 S5120
Boot Up Floppy Seek
During Power-On Self-Test (POST), BIOS will determine if the floppy disk drive installed is 40
or 80 tracks.
•
Enabled
•
Disabled
Boot Up NumLock Status
This option, when enabled, automatically turns on your NumLock key when the system is
booted. This is a matter of personal taste.
•
On
•
Off
Gate A20 Option
This feature determines how Gate A20 is used to address memory above 1MB. When this
option is set to Fast, the motherboard chipset controls the operation of Gate A20. But when
set to Normal, a pin in the keyboard controller controls Gate A20. Setting Gate A20 to Fast
improves memory access speed and thus, overall system speed, especially with OS/2 and
Windows.
This is because OS/2 and Windows enter and leave protected mode via the BIOS, so Gate
A20 needs to switch often from enabled to disabled and back again. Setting this feature to
Fast improves memory access performance above 1MB because the chipset is much faster at
switching Gate A20 than the keyboard controller. It is recommended that you set it to Fast for
faster memory accesses.
•
Normal
•
Fast
Typematic Rate Setting
This feature enables you to control the keystroke repeat rate when you depress a key
continuously. When enabled, you can manually adjust the settings using the two typematic
controls (Typematic Rate and Typematic Delay). If disabled, the BIOS will use the default
setting.
•
Enabled
•
Disabled
Typematic Rate (Chars/Sec)
Defines how many characters are repeated per second when holding down a key on the
keyboard:
•
6
•
8
•
10
•
12
•
15
•
20
•
24
•
30
Typematic Delay (Msec)
Defines the delay (in milli-seconds) that occurs at keystroke before that key will start to repeat.
•
250
•
500
•
750
•
1000
3-10
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Chapter 3: BIOS Setup