Dell 755 manual 283, No Boot setting

USB Controller	Enables or disables the internal USB controller. No Boot enables the controller but
(On default)	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.
Rear Quad/Triad USB Enables or disables the upper USB ports on the back of the computer.
(On default)
Rear Dual USB	Enables or disables the lower USB ports on the back of the computer.
(On default)
Front USB	Enables or disables the front USB ports.
(On default)
PCI Slots	Enables or disables all PCI and PCI Express slots.
(On default)
LPT Port Mode	Determines the mode of operation of the internal parallel port. Off disables the port.
(PS/2 default)	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.
LPT Port Address	Determines the address that the built-in parallel port uses.
Serial Port #1	Determines how the serial port operates.
(Auto default)	Auto, the default setting, automatically configures a connector to a particular
	designation (COM1 or COM3).

Serial Port #2 (Auto default)

Determines how the serial port operates.

NOTE: Only available if a PS/2 serial port adapter is installed.

Auto, the default setting, automatically configures a connector to a particular designation (COM2 or COM4).

Video
Primary Video	This setting specifies which video controller is primary, Auto or Onboard/Card. When
(Auto default)	Auto is selected, the add-in video controller will be used.
	NOTE: A PCI Express graphics card will override the integrated video controller.

Advanced Features

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