Dell Precision 3551 Setup and specifications guide

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System configuration

Table 1. System Configuration The following table describes the system configuration:
Option	Description
Integrated NIC	Allows you to configure the on-board LAN controller. Disabled = The internal LAN is off and not visible to the operating system. Enabled = The internal LAN is enabled. Enabled w/PXE = The internal LAN is enabled (with PXE boot) (selected by default).
SATA Operation	Allows you to configure the operating mode of the integrated hard drive controller. Disabled = The SATA controllers are hidden. AHCI = SATA is configured for AHCI mode. RAID ON = SATA is configured to support RAID mode (selected by default).
Drives	Allows you to enable or disable the various drives on-board: SATA-2 (enabled by default). M.2 PCIe SSD-0 (enabled by default).
Smart Reporting	This field controls whether hard drive errors for integrated drives are reported during system startup. The Enable Smart Reporting option is disabled by default.
USB Configuration	Allows you to enable or disable the integrated USB controller for: Enable USB Boot Support. Enable External USB Port. All the options are enabled by default.
Thunderbolt Adapter Configuration	This section allows Thunderbolt Adapter Configuration. Thunderbolt-is enabled by default. Enable Thunderbolt Boot Support-is disabled. No security-is disabled. User configuration-enabled by default. Secure connect-is disabled. Display port and USB Only-is disabled.
USB PowerShare	This option configures the USB PowerShare feature behavior. Enable USB PowerShare - disabled by default. This feature is intended to allow users to power or charge external devices, such as phones and portable music players, using the stored system battery power through the USN PowerShare port on the notebook, while the notebook is in a sleep state.
Audio	Allows you to enable or disable the integrated audio controller. The option Enable Audio is selected by default. Enable Microphone. Enable Internal Speaker. Both the options are selected by default.
Keyboard Illumination	This field lets you choose the operating mode of the keyboard illumination feature. The keyboard brightness level can be set from 0% to 100%. The options are: Disabled Dim Bright-enabled by default.
Keyboard Backlight Timeout on AC	The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is not affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when the backlight is enabled. The options are: 5 sec 10 sec-enabled by default. 15 sec 30 sec 1 min 5 min 15 min Never
Keyboard Backlight Timeout on Battery	The Keyboard Backlight Timeout dims out with the Battery option. The main keyboard illumination feature is not affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when the backlight is enabled. The options are: 5 sec 10 sec-enabled by default. 15 sec 30 sec 1 min 5 min 15 min Never
Unobtrusive Mode	Enable Unobtrusive Mode (disabled by default). When enabled pressing Fn+Shift+B will turn off all light and sound emissions in the system. Press Fn+Shift+B to resume normal operation.
Miscellaneous Devices	Allows you to enable or disable the following devices: Enable Camera (enabled by default). Enable Hard Drive Free Fall Protection(enabled by default). Enable Secure Digital (SD) Card (enabled by default). Secure Digital (SD) Card Boot. Secure Digital (SD) Card Read-Only Mode.
MAC Address Pass-Through	System Unique MAC Address (disabled by default). Integrated NIC 1 MAC Address. Disabled The feature replaces the external NIC MAC address (in a supported dock or dongle) with the selected MAC address from the system. The default option is to use the Passthrough MAC address.