Chapter 3
Gate A20 Option
This item is to set the Gate A20 status. A20 refers to the first 64KB of extended memory. When the default value Fast is selected, the Gate A20 is controlled by Port92 or chipset specific method resulting in faster system performance. When Normal is selected, A20 is controlled by a keyboard controller or chipset hardware.
Typematic Rate Setting
This item is used to enable or disable the typematic rate setting, including Typematic Rate & Typematic Delay.
Typematic Rate (Chars/Sec)
After Typematic Rate Setting is enabled, this item allows you to set the rate (characters/second) at which the keys are accelerated. Settings: 6, 8, 10, 12, 15, 20, 24 and 30.
Typematic Delay (Msec)
This item allows you to select the delay between when the key was first pressed and when the acceleration begins. Settings: 250, 500, 750 and 1000.
Security Option
This specifies the type of BIOS password protection that is implemented. Set- tings are described below:
Option | Description |
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|
Setup | The password prompt appears only when end users try to |
| run Setup. |
|
|
System | A password prompt appears every time when the com- |
| puter is powered on or when end users try to run Setup. |
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|
APIC Mode
This field is used to enable or disable the APIC (Advanced Programmable Interrupt Controller). Due to compliance with PC2001 design guide, the system is able to run in APIC mode. Enabling APIC mode will expand available IRQ resources for the system. Settings: Enabled and Disabled.