Acrosser AR-B1690 - Manual (Page 28)

AR-B1690 User’s Guide
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PS/2 Mouse Support
The setting of Enabled allows the system to detect a PS/2 mouse on boot up. If detected, IRQ12 will be used for
the PS/2 mouse. IRQ 12 will be reserved for expansion cards if a PS/2 mouse is not detected. Disabled will
reserve IRQ12 for expansion cards and therefore the PS/2 mouse will not function.
Primary Display
The option is used to set the type of video display card installed in the system.
Password Check
This option enables password checking every time the computer is powered on or every time the BIOS Setup is
executed. If Always is chosen, a user password prompt appears every time the computer is turned on. If Setup
is chosen, the password prompt appears if the BIOS executed.
Boot to OS/2
When using the OS/2 operating system, you need to Yes this option otherwise leave this on the setup default of
No
.
L1 Cache
This option controls to Enabled or Disabled the CPU’s Level 1 built-in catch.
L2 Cache
This option controls to Enabled or Disabled the CPU’s Level 2 built-in catch.
System BIOS Cacheable
Enabled this option to enhance system performance by shadowing and caching system BIOS shadow functions
will be ignored.
Shadow Memory
Each of segments provides three options Disabled, Enabled, and Cached for faster adapter’s ROM executions.
However this shadow function is Chipset oriented and dependent on system hardware feature. In general, C000
64K will be allocated for VGA BIOS and set to Cached to get higher display performance by shadowing and
caching feature. If user chooses Enabled setting, only BIOS shadow function is active.