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12.1.5 BIOS Features
Option
BIOS
Default
Virus Warning
Dis.
CPU Internal Cache
Dis.
CPU External Cache
Dis.
Quick Power On Self
Dis.
Test
Boot Sequence
A, C
Swap Floppy Drive
Dis.
Boot Up Floppy Seek
En.
Boot Up NumLock
Off
Status
Boot Up System Speed
High
Typematic Rate Setting
Dis.
Typematic Rate
30
(Chars/Sec)
250
Typematic Delay
(Msec)
Security Option
Setup
OS Select For
Non-
OS2
DRAM>64MB
Setup
Possible
Default
Settings
Dis.
En., Dis.
When Enabled, displays a warning message if a program (usually, a
virus) attempts to write to the boot sector or the partition table of the
HDD. You should then run an anti-virus program. Keep in mind that
this feature protects only the boot sector, not the entire hard drive.
Note: Many disk diagnostic programs and operating system
installation that access the boot sector table can trigger the virus
warning message. If you plan to run such a program, first disable the
virus warning.
En.
En., Dis.
Enables or Disables the CPU Internal Cache.
En.
En., Dis.
Enables or Disables the CPU external Cache.
En.
En., Dis.
Select Enabled to reduce the amount of time to run the power-on self
test (POST). A quick POST skips certain steps. In normal disable
quick POST.
(A,C) ; (C,A) ;
Selects the boot source drive that supports the operating system
C, A
(C, CD, A);
(floppy disk, hard disk, or CDROM).
(CD, C, A)
Dis.
En., Dis.
Effective only in systems with two FD. Select Enabled to assign
physical drive B to logical drive A, and physical drive A to logical
drive B.
Dis.
En., Dis.
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 On/Off to control the state of the NumLock key at the bootup.
When 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.
Dis.
En., Dis.
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.
30
6, 8, 10, 12,
When the typematic rate setting is Enabled, you can select a
15, 20, 24, 30
typematic rate (the rate at which characters repeat when you hold
char./second
down a key) of 6, 8, 10, 12, 15, 20, 24 or 30 characters per second.
250
250, 500, 750,
When Enabled, you can select a typematic delay (the delay before
1000 ms
key strokes begin to repeat) of 250, 500, 750 or 1000 milliseconds.
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.
12-5
Software Setup
Description
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