Dell OptiPlex GXi Reference and Installation Guide (.pdf) - Page 40

USB USB determines whether the Universal Serial Bus (USB) connectors on the system board are turned ON or OFF (the default). You must reboot your system before a change takes effect. Speaker SPEAKER determines whether the onboard speaker is ON (the default) or OFF. A change to this category takes effect immediately (rebooting the system is not required). ECC ECC determines whether the system's error correction code (ECC) capability is turned ON (the default) 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, display information about the system: • MICROPROCESSOR displays the type of micro- processor installed in the computer. • EXTERNAL CACHE displays the size of the onboard cache (256 KB 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, which is included with your software support utilities, to enter an asset tag number up to ten characters long into NVRAM. For information on using the utility, see "Using Drivers and Utilities" in your online System User's Guide. Using the System Password Feature CAUTION: The password features provide a basic level of security for the data on your system. However, 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. 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 password protection. You can assign a system password, as described in the next subsection, "Assigning a System Password," whenever 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 password 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 feature (see "Disabling a Forgotten Password" found later in this chapter). Note that you erase the setup password at the same time. 2-10 Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide