Base Memory; Extended Memory; Reserved Memory; Cpu Speed - Dell OptiPlex GXi Reference And Installation Manual

Base Memory

Base Memory displays the amount of memory available
to MS-DOS programs that do not use extended or
expanded memory. This category has no user-selectable
options.
The default value for the Base Memory category is
640 KB, which includes 1 kilobyte (KB) reserved for
system use.

Extended Memory

Extended Memory, which has no user-selectable options,
indicates the amount of memory available as extended
memory.

Reserved Memory

Reserved Memory allows you to designate a region of
system board memory that can be supplied by an expan-
sion card. You should not enable the reserved memory
feature unless you are using an expansion card that
requires special addressing.
For example, you may have a memory expansion card
that needs to be addressed starting at 15 MB. Selecting
the 15M–16M option in the Reserved Memory category
specifies that only part of the base memory comes from
the dual in-line memory modules (DIMMs) on the sys-
tem board, whereas the base memory from 15 to 16 MB
comes from the memory expansion card.
The Reserved Memory category has the following
options:
•
None (the default option)
•
15M–16M

CPU Speed

CPU Speed indicates the processor speed at which your
system boots.
Press the left- or right-arrow key to toggle the CPU
Speed category between the resident microprocessor's
rated speed (the default) and a lower compatibility speed,
which lets you accommodate speed-sensitive application
programs.
2-6 Dell OptiPlex GX i Mini Tower Systems Reference and Installation Guide
You can also toggle between the rated processor speed
and the compatibility speed while the system is running
in real mode by pressing <
boards that do not use American English, press
< >< >< >.)
CTRL ALT #

Num Lock

Num Lock determines whether your system boots with
the Num Lock mode activated on 101- or 102-key key-
boards (it does not apply to 84-key keyboards).
When Num Lock mode is activated, the rightmost bank
of keys on your keyboard provides the mathematical and
numeric functions shown at the tops of the keys. When
Num Lock mode is turned off, these keys provide cursor-
control functions according to the labels on the bottom of
each key.

Keyboard Errors

Keyboard Errors enables or disables reporting of key-
board errors during the power-on self-test (POST), which
is a series of tests that the system performs on the hard-
ware each time you turn on the system or press the reset
button.
This category is useful when applied to self-starting serv-
ers or host systems that have no permanently attached
keyboard. In these situations, selecting Do Not Report
suppresses all error messages relating to the keyboard or
to the keyboard controller during POST. This option does
not affect the operation of the keyboard itself, if one is
attached to the computer.

System Password

System Password displays the current status of your sys-
tem's password security feature and allows you to assign
and verify a new password. No one can assign a new
password unless the current status is Not Enabled, which
is displayed in bright characters.
The options for the System Password category are:
•
Not Enabled (the default option)
•
Enabled
•
Disabled By Jumper
>< >< >. (For key-
CTRL ALT \