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13.4 BIOS FEATURE SETUP
Option
BIOS
Default
Virus Warning
Dis.
CPU Internal Cache
En.
External Cache
Dis.
Quick Power On Self
Dis.
Test
Boot Sequence
A, C
Swap Floppy Drive
Dis.
Boot Up Floppy Seek
Dis.
Boot Up NumLock
Off
Status
Boot Up System Speed
High
Typematic Rate Setting
Dis.
Typematic Rate
6
(Chars/Sec)
Typematic Delay
250
(Msec)
Security Option
Setup
OS Select For
Non-
DRAM > 64MB
OS/2
Setup
Possible
Default
Settings
Dis.
Dis. ; En.
When Enabled, occurs a warning message if a program (specifically,
a virus) attempts to write to the boot sector or the partition table of
the hard disk drive. This feature protects only the boot sector, not the
entire hard drive.
Note: 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 first disable the
virus warning.
En.
Dis. ; En.
Enables or Disables the CPU Internal Cache.
En.
Dis. ; En.
Enables or Disables the CPU external Cache.
Dis.
Dis. ; En.
Select Enabled. to reduce the amount of time required to run the
power-on self test (POST). A quick POST skips certain steps. We
recommend that you normally disable quick POST. It is better to find
a problem during POST than lose data during your work.
C, A, SCSI ; C,
A, C
The original IBM PCs load the DOS operating system from drive A
CDROM, A ;
(floppy disks), so IBM PC-compatible systems are designed to
CDROM, C, A ; D,
search for an operating system first on drive A, then on drive C (hard
A SCSI ; E, A,
disk). However, modern computers usually load the operating
SCSI ;
system from the hard drive, and may even load it from a CD-ROM
F, A, SCSI ; SCSI,
drive.
A, C ; SCSI, C, A ;
C only ; A, C,
SCSI
This field is effective only in systems with two floppy drives. Selecting
Dis.
Dis. ; En.
Enabled assigns physical drive B to logical drive A, and physical
drive A to logical drive B.
Dis.
Dis. ; En.
When Enabled, the BIOS tests (seeks) floppy drives to determine
whether they have 40 or 80 tracks. Only 360KB floppy drives have
40 tracks; drives with 720KB, 1.2MB, and 1.44MB capacity all have
80 tracks. Because very few modern PCs have 40 track floppy
drives, we recommend that you set this field to "Disabled" to save
time.
Off
On ; Off
Toggle between On or Off to control the state of the NumLock key
when the system boots. When toggled On, the numeric keypad
generates numbers instead of controlling cursor operations.
High
Low ; High
Select High to boot at the default CPU speed; select Low to boot at
the speed of the AT bus. Some add-in peripherals or old software
(such as old games) may require a slow CPU speed. The default
setting is High.
Dis.
Dis. ; En.
When Disabled, the following two items (Typematic Rate and
Typematic Delay) are irrelevant. Keystrokes repeat at a rate
determined by the keyboard controller in your system. When
Enabled, you can select a typematic rate and a typematic delay.
6
6 to 30 char.
When the typematic rate setting is Enabled, you can select a
typematic rate (the rate at which characters repeat when you hold
per second
down a key in a second).
250
250 ; 500 ; 750
When the typematic rate setting is Enabled, you can select a
; 1000 ms
typematic delay (the delay before key strokes begin to repeat).
Setup
Setup ; System
If you have set a password, select whether the password is required
every time the system boots, or only when you enter Setup.
Non-
Non-OS/2 ;
Select OS2 only if you are running an OS/2 operating system with
OS2
OS/2
greater than 64MB of RAM.
13-5
BIOS Setups
Description
...
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