Dell Precision T7400 User's Guide - Page 78

USB Controller (On default) Front USB Ports (On default) LPT Port Mode (PS/2 default) LPT Port Address Serial Port #1 (Auto default) Serial Port #2 (Auto default) PS/2 Mouse Port (On default) Enables or disables the internal USB controller. No Boot enables the controller but disables the ability to boot from a USB device. NOTE: Operating systems with USB support will recognize USB floppy drives regardless of the No Boot setting. Enables or disables the front USB ports. Determines the mode of operation of the internal parallel port. Off disables the port. AT configures the port for AT compatibility. PS/2 configures the port for PS/2 compatibility. EPP configures the port for the EPP bidirectional protocol. ECP configures the port for the ECP bidirectional protocol. NOTE: If you set the LPT Port Mode to ECP, the LPT Port DMA appears in the option menu. Determines the address that the built-in parallel port uses. Determines how the serial port operates. Off disables the port. Auto, the default setting, automatically configures a connector to a particular designation (COM1 or COM3). Determines how the serial port operates. Off disables the port. Auto, the default setting, automatically configures a connector to a particular designation (COM2 or COM4). Enables or disables the integrated legacy PS/2-compatible mouse controller. 78 System Setup