Acrosser AR-B1651 User Manual
Page 21
 
AR-B1651 User’s Guide
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Try Other Boot Devices
This options can boot from other devices when default setting boot is failed.
S.M.A.R.T for Hard Disks
S.M.A.R.T is abbreviation of Self-Monitoring Analysis and Reporting Technology. It is reliable and precautious 
technology. When Hard Disk disorder, it prevents Hard Disk from the loss of data. 
 
Boot Up Num-Lock
This item is used to activate the Num-Lock function upon system boot. If the setting is on, after a boot, the 
Num-Lock light is lit, and user can use the number key. 
 
Floppy Drive Swap
The option reverses the drive letter assignments of your floppy disk drives in the Swap A, B setting, otherwise 
leave on the setting of Disabled (No Swap). This works separately from the BIOS Features floppy disk swap 
feature. It is functionally the same as physically interchanging the connectors of the floppy disk drives. When 
<Enabled>, the BIOS swapped floppy drive assignments so that Drive A becomes Drive B, and Drive B becomes 
Drive A under DOS. 
 
Floppy Drive Seek
If the <Floppy Drive Seek> item is setting Enabled, the BIOS will seek the floppy <A> drive one time upon boot up. 
 
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.