Nexcom PEAK 760 Series, User Manual

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PEAK 760 User’s Manual 47 Appendix A
Note: This function is available only for DOS and other operating systems that do not trap INT13.
For complete protection against viruses, install virus software in your operating system and
update the virus definitions regularly.
Many disk diagnostic programs that access the boot sector table can trigger the virus warning
message. If you plan to run such a program, we recommend that you disable the virus
warning.
CPU L1, L2 and L3 Cache
Cache memory is an additional memory that is much faster than conventional DRAM (system memory).
This BIOS feature is used to enable or disable the processor's Level 1, Level 2 and Level 3 cache.
Naturally, the default and recommended setting is Enabled.
Note: This field will be available only if your CPU supports this function.
First/Second/Third Boot Device
BIOS attempts to load the operating system from the devices in the sequence selected. The available
choices are: Floppy, HDD-0, SCSI, CDROM, HDD-1, HDD-2, HDD-3, USB-FDD, USBZIP,
USB-CDROM, USB-HDD, LAN, and Disabled.
Boot Up NumLock Status
Toggle between On or Off to control the state of the NumLock key when the system boot. If On, the
numeric keypad is in numeric mode. If Off, the numeric keypad is in cursor control mode.
Gate A20 Option
Gate A20 refers to the way the system addresses memory above 1MB (extended memory). This feature
enables you to select whether the chipset or the keyboard controller should control Gate A20. The options
are:
Normal: A pin in the keyboard controller controls Gate A20
Fast: Let system chipsets control Gate A20. The fast setting improves system speed, particularly with
OS/2 and windows.
Security Option
Enables you to select whether the password is required every time the system boots or only when you
enter Setup.
System: The system will not boot and access to Setup will be denied if the correct password is not
entered at the prompt.
Setup: The system will boot, but access to Setup will be denied if the correct password is not entered
at setup.