ROM-Based Setup
Shadow
This configuration setting enables
or
di~ables
shadow
memory.
Shadow
memory
is
a write-protected portion of
DRAM
that,
when
enabled, contains a
copy of tl,e system
and
SCSI
BIOS,
or
the video BIOS. Shadow memory
has
the
same addresses as
the
BIOS ROM locations.
Shadow
increases system
perfonnance because the
BIOS
instructions are in fast
DRAM
instead
of
ROM.
NOTE
You
must
enable shadowing before selecting user
definable driver option 2
and
3.
Cache
This configuration setting enables
or
disables the i486 microprocessor internal
cache and the optional
external cache. Enabling
the
caches significantly
improves system performance by reducing the average number of wait states
seen
by
the i486 microprocessor.
Password
This configuration setting allows you to set a system password.
System Information Menu
PrĀ·~ssing
the
F2
function key displays the system information menu. This
menu
contains
the
LAN
address,
the
type selected LAN media, and
whether
or
not
the system found a secondary
c:ache.
These configuration settings are
not
changeable.
Exiting
Setup
After all configuration setting changes are entered, exit Setup by selecting one
of the exit options displayed on
the
..,..
Exiting Setup
..,..
menu (see
Figure
C-3).
Press the
Esc
key to display the menu.
DECpc
433
Workstation
Service
Guide
C-9