The 845D-AV MAINBOARD
Ver 3.x
Page 28
Gate A20 Option
Gate A20 is a signal that gives the system access to addresses higher than
A19. If you select Fast the chipset will control this signal. If you select normal
a pin in the keyboard controller will control the signal.
Typematic Rate Setting
The keyboard controller determines the rate at which the keystrokes from the
keyboard are repeated. If you enable this option then the typematic rate and
the typematic delay can be selected.
Typematic Rate
This is the rate a character will repeat itself on the screen when you hold down
a key.
Typematic Delay
This is the delay time (Msec) before the repetition of characters starts.
Security Option
This field allows you to select the “Setup” or “System” security option. It works
concurrently with the “ Set Supervisor Password” in the main menu.
When the "Setup" option is selected, you will be prompted to enter your
"Password" before you can start the BIOS CMOS Setup Utility. When you select
"System" option, you will be prompted to enter your password in order to load
the Operating System.
TIP: Forgot your password then clear the RTC RAM
If you happen to forget your password you can use Jumper 5 (JP5) to clear the
password by erasing the CMOS Real Time Clock (RTC) Ram. Please see section
2.9.4. on page 22.
OS Select For DRAM > 64MB
Only select OS2 if you are running an OS/2 operating system with a RAM
greater than 64 Mb. Otherwise, for all other operating systems, use the default
setting “Non-OS2”.
HDD S.M.A.R.T Capability
You may “enable” this option if your Hard Drive supports the S.M.A.R.T. tech-
nology (Self Monitoring Analysis Reporting Technology) feature. S.M.A.R.T. will
monitor and report your Hard Drive health status. Ask your Hard Drive Vendor
for further information.
Note : Using this feature may decrease system performance
Report No FDD For WIN95
If you are not using a floppy disk this option allows you to release IRQ6. To do
this set this option to Yes. You should then also disable the onboard FDC Con-
troller in the Integrated Peripherals Screen.
Managing The PC BIOS
