45
• Gate A20 Option
Refers to the way the system addresses memory above 1 MB (extended memory). When set to Fast, the
system chipset controls Gate A20. When set to Normal, a pin in the keyboard controller controls Gate A20.
Setting Gate A20 to Fast improves system speed, particularly with OS/2 and Windows.
• Typematic Rate Setting
When Enabled, you can select a typematic rate and typematic delay.
• Security Option
If you have set a password, select whether the password is required every time the System boots, or only
when you enter Setup.
• APIC Mode
The Advanced Programmable Interrupt Controller (APIC) prioritizes interrupts.
• MPS Version Control For OS
Allows the operating system to work with multiple CPUs. Select “1.1” for compatibility with older OS.
