Dell OptiPlex Gxi - Manual (Page 34)

2-10 Dell OptiPlex GXi Mini Tower Systems Reference and Installation Guide
ECC
ECC determines whether the system’s error correction
code (ECC) capability is turned On (the default option)
or Off. Your system supports ECC only if all the installed
DIMMs are ECC DIMMs. If any of the installed DIMMs
are not ECC DIMMs, this category does not appear.
System Data Categories
The following categories, which are not selectable, dis-
play information about the system:
• Microprocessor displays the type of microprocessor
installed in the computer.
• External Cache displays the size of the integrated
cache (256 or 512 KB).
• Video Memory displays the amount of video mem-
ory detected in your system.
• System Memory indicates the entire amount of
installed memory detected in your system, except for
memory on Expanded Memory Specification (EMS)
expansion cards. After adding memory, check this
category to confirm that the new memory is installed
correctly and is recognized by the system.
• Service Tag displays the system’s five-character
service tag number, which was programmed into
NVRAM by Dell during the manufacturing process.
Refer to this number during technical assistance or
service calls. The service tag number is also
accessed by certain Dell support software, including
the diagnostics software.
• Asset Tag displays the customer-programmable asset
tag number for the system if an asset tag number has
been assigned. You can use the Asset Tag utility to
enter an asset tag number up to ten characters long
into NVRAM. For information on this utility, see
“Using Drivers and Utilities” in your online System
User’s Guide.
U
sing the System Password Feature
Your Dell system is shipped to you without the system
password feature enabled. If system security is a concern,
you should operate your system only with system pass-
word protection.
You can assign a system password, as described in the
next subsection, “Assigning a System Password,” when-
ever you use the System Setup program. After a system
password is assigned, only those who know the password
have full use of the system.
When the System Password category is set to Enabled,
the computer system prompts you for the system pass-
word just after the system boots.
To change an existing system password, you must know
the password (see “Deleting or Changing an Existing
System Password” found later in this section). If you
assign and later forget a system password, you need to
be able to remove the computer cover to change a
jumper setting that disables the system password fea-
ture (see “Disabling a Forgotten Password” found
later in this chapter). Note that you erase the setup
password at the same time.
Assigning a System Password
Before you can assign a system password, you must enter
the System Setup program and check the System Pass-
word category.
CAUTION: The password features provide a basic
level of security for the data on your system. How-
ever, they are not foolproof. If your data requires
more security, it is your responsibility to obtain and
use additional forms of protection, such as data
encryption programs.
CAUTION: If you leave your system running and
unattended without having a system password
assigned or leave your computer unlocked so that
someone can disable the password by changing a
jumper setting, anyone can access the data stored
on your hard-disk drive.