Dell OptiPlex GX520 User Manual page 8

Enables or disables the front-panel USB connectors. The default setting is On. To disable the front-panel connectors, select Off.
USB Disable
Enables and disables the integrated USB controller
USB
Controller
Off — The USB controller is disabled
On — The USB controller is enabled
No Boot — The USB controller is enabled; however, the BIOS will not recognize USB storage devices.
The factory default setting is On.
Enables and disables the front-panel USB ports.
Front USB
Ports
Off — Disabled
On — Enabled
The factory default setting is On.
Selects the mode of operation for the integrated parallel port.
LPT Port Mode
Off — Port is disabled
AT — Port is configured for IBM AT compatibility
PS/2 — Port is configured for IBM PS/2 compatibility
EPP — Enhanced parallel port protocol
ECP — Extended Capability port protocol
The factory default setting is PS/2.
Selects the base IO address for the integrated parallel port. The factory default setting is 378h.
LPT Port
Address
Video
This setting specifies which video controller is primary when two video controllers are present on the computer.
Primary Video
This setting specifies the amount of memory available to video controllers.
Video Memory
Size
Performance
If your computer's processor supports Hyper-Threading, this option appears in the Options List.
Hyper-
Threading
Quiet (default setting) — The hard drive operates at its most quiet setting.
HDD Acoustic l
Performance — The hard drive operates at its maximum speed.
Mode l
Bypass — Your computer does not test or change the current acoustics mode setting.
l
Suggested — The hard drive operates at the level suggested by the drive manufacturer.
l
NOTE: Switching to performance mode may cause the drive to be noisier, but its performance is not affected.
Changing the acoustics setting does not alter your hard-drive image.
This section displays available system security options. See "Security" for more information.
Security
This option provides restricted access to the computer's System Setup program in the same way that access to the system can be restricted
Admin
with the System Password option. The settings are Set, Not Set, and Disabled.
Password
If the option is to Set, an administrator password is assigned.
If the option is to Not Set, no administrator password is assigned and the password jumper on the system board is in the enabled position
(the default setting).
If the option is to Disabled, the administrator password is disabled by a jumper setting on the system board.
To disable the administrator password, enter the password at the prompt and hit <Ctrl><Enter>.
Displays the current status of the system's password security feature and allows a new system password to be assigned and verified. The
System
settings are Set, Not Set, and Disabled.
Password
If the option is Set, a system password is assigned.
If the option is Not Set, no system password is assigned and the password jumper on the system board is in the enabled position (the
default setting).
If the option is Disabled, the system password is disabled by a jumper setting on the system board.
To disable the system password, enter the password at the prompt and hit <Ctrl><Enter>.
Set this password to prevent unauthorized users from accessing the hard drive.
Drive
Password
NOTE: The option appears for each installed hard drive that supports hard-drive passwords. If no drives support a drive password, this
option will not display.
Set this password to prevent unauthorized users from accessing a hard drive installed in the module bay.
ModBay
Password