Bios Features Setup - Teknor Industrial Computers VIPer 821 Technical Reference Manual

VIPer 821 - Technical Reference Manual
4.3

BIOS FEATURES SETUP

Option BIOS
Default
Virus Warning Dis.
CPU Internal Cache Dis.
External Cache Dis.
Quick Power On Self Dis.
Test
A, C, SCSI C, A, SCSI
Boot Sequence
Swap Floppy Drive Dis.
Boot Up Floppy Seek Dis.
Boot Up NumLock
Status
Boot Up System
High
Speed
Typematic Rate Dis.
Setting
Typematic Rate
(Chars/Sec)
Typematic Delay 250
(msec)
Setup Possible
Default Settings
Dis. En., Dis.
En. En., Dis.
En. En., Dis.
En. En., Dis.
A, C, SCSI;
C, A, SCSI;
C, CDROM, A;
CDROM, C, A;
D, A, SCSI;
E, A, SCSI;
F, A, SCSI;
SCSI, A, C;
SCSI, C, A;
C only
Dis. En., Dis.
Dis. En., Dis.
Off Off On, Off
High Low, High
Dis. En., Dis.
30 30 6-30 char/sec
250 250-1000 ms
Description
When Enabled, you receive 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. 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 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.
Enables or Disables the CPU Internal Cache (L1 cache).
Enables or Disables the External Cache (L2 cache).
Select Enabled to reduce the amount of time required to run the
power-on self test (POST).
Note: A quick POST skips certain steps. We recommend that
you normally disable quick POST.
problem during POST than lose data during your work.
The original IBM PCs load the DOS operating system from drive A
(floppy disks), so IBM PC-compatible systems are designed to
search for an operating system first on drive A, then on drive C
(hard disk). However, modern computers usually load the
operating system from the hard drive, and may even load it from a
CD-ROM drive.
Selecting Enabled assigns physical drive B to logical drive A, and
physical drive A to logical drive B. If there is only one flopy on the
system, it could be assigned to B with this option.
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.
Note: Because very few modern PCs have 40 track floppy
drives, we recommend that you set this field to Disabled to
save time.
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.
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.
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.
When the typematic rate setting is Enabled, you can select a
typematic rate (the rate at which characters repeat when you hold
down a key) of 6, 8, 10, 12, 15, 20, 24 or 30 characters per
second.
When the typematic rate setting is Enabled, you can select a
typematic delay (the delay before key strokes begin to repeat.
4-4
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