Sony AR-B1570 User Manual

AR-B1570 User’s Guide 

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The <BIOS FEATURES SETUP> option consists of configuration entries that allow you to improve your system 
performance, or let you set up some system features according to your preference.  Some entries here are 
required by the CPU board’s design to remain in their default settings for optimal performance.  
 
 It is suggested that you leave the settings on the factory default unless you are well versed in BIOS features. 

 

 

 

ROM PCI/ISA BIOS (2A434AVF) 

BIOS FEATURES SETUP 

AWARD SOFTWARE, INC. 

Video BIOS Shadow 
 
 
 
 
 
 

Cyrix 6x86/MII CPUID  

 
 
 
 
 
 
 

: Enabled 
 
 
 
 
 
 
: Enabled 
 

Esc: Quit 
F1:   Help 
F5:  Old  Values 

↑↓→←:       Select Item 
PU/PD/+/-:  Modify 
(Shift) F2:   Change Color 

 
CPU Internal Cache 
 
Quick Power On Self Test 
Boot Sequence 
 
 
 
Boot Up NumLock Status 
Boot Up System Speed 
Gate A20 Option 
Memory Parity Check 
Typematic Rate Setting 
Typematic Rate (Chars/Sec) 
Typematic Delay (Msec) 
Security Option 
PCI/VGA Palette Snoop 
 

 

 

 

: Enabled 
 
: Enabled 
: C, CDROM,A 
 
  
 
: On 
: High 
: Fast 
: Disabled 
: Enabled 
: 30 
: 250 
: Setup 
: Disabled 
 

F6: 

Load BIOS Defaults 

F7: 

Load Setup Defaults 

 

 

The two functions speed up memory access.  However, it depends on CPU/chipset design.  If your CPU is without 
Internal cache then this item <CPU Internal Cache> will not be show.  The AR-B1570’s GX1 Cyrix CPU has an 
internal cache and will automatically be set to <enabled>. 
 

This option speeds up Power On Self Test (POST) after you power on the computer.  If it is set to Enable, BIOS 
will shorten or skip some items’ checks during POST. 
 

The option determines which drive computer searches first for the disk operating system. 

  

This item is used to activate the NumLock function upon system boot. If the setting is on, after a boot, the 
NumLock light is lit, and the user can use the number keys.  

 

This item is used to choose the boot-up speed of system. The choices provided are <LOW> and <HIGH>. 

 

This item is chosen as <Normal>, the A20 signal is controlled by keyboard controller or chipset hardware. The 
selection is “Fast” means the A20 signal is Port 92 or a chipset specific method controls.