Dell OptiPlex 755 User's Guide - Page 283

No Boot, Onboard/Card, Rear Quad/Triad USB - boot built in video

Page 283 highlights

USB Controller (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. 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 (PS/2 default) 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. 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 (Auto default) This setting specifies which video controller is primary, Auto or Onboard/Card. When 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 283

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Advanced Features
283
USB Controller
(
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.
Rear Quad/Triad USB
(
On
default)
Enables or disables the upper USB ports on the back of the computer.
Rear Dual USB
(
On
default)
Enables or disables the lower USB ports on the back of the computer.
Front USB
(
On
default)
Enables or disables the front USB ports.
PCI Slots
(
On
default)
Enables or disables all PCI and PCI Express slots.
LPT Port Mode
(
PS/2
default)
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.
LPT Port Address
Determines the address that the built-in parallel port uses.
Serial Port #1
(
Auto
default)
Determines how the serial port operates.
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
(
Auto
default)
This setting specifies which video controller is primary,
Auto
or
Onboard/Card
. When
Auto is selected, the add-in video controller will be used.
NOTE:
A PCI Express graphics card will override the integrated video controller.