Dell Precision 7540 Service Manual

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System configuration

Table 1. System ConfigurationThe table describes the system configuration options.
Option	Description
Integrated NIC	Allows you to configure the integrated network controller. Click one of the following options: Disabled Enabled Enabled w/PXE—Default
SATA Operation	Allows you to configure the operating mode of the integrated SATA hard-drive controller. Click one of the following options: Disabled AHCI RAID On—Default NOTE SATA is configured to support RAID mode.
Drives	Allows you to enable or disable various drives on board. The options are: SATA-1 SATA–4 M.2 PCIe SSD-0 M.2 PCIe SSD-1 All the options are set by default.
SMART Reporting	This field controls whether hard drive errors for integrated drives are reported during system startup. This technology is part of the SMART (Self Monitoring Analysis and Reporting Technology) specification. This option is disabled by default. Enable SMART Reporting
USB Configuration	Allows you to enable or disable the internal/integrated USB configuration. The options are: Enable USB Boot Support Enable External USB Ports All the options are set by default. NOTE USB keyboard and mouse always work in the BIOS setup irrespective of these settings.
Dell Type-C Dock Configuration	Always allow Dell docks. This setting affects only the Type-C ports connected to a Dell WD or TB dock.
Thunderbolt Adapter Configuration	Allows you to configure the Thunderbolt adapter security settings within the operating system. The options are: Enable Thunderbolt Technology Support—Default Enable Thunderbolt Adapter Boot Support Enable Thunderbolt Adapter Pre-boot Modules Choose any one option: Security level - No Security Security level - User Authorization—Default Security level - Secure Connect Security level - Display Port Only
Thunderbolt Auto Switch	Allows auto switch the thunderbolt option.
USB PowerShare	This field configures the USB PowerShare feature behavior. This option allows you to charge external devices using the stored system battery power through the USB PowerShare port (disabled by default). Enable USB PowerShare
Audio	Allows you to enable or disable the integrated audio controller. By default, the Enable Audio option is selected. The options are: Enable Microphone Enable Internal Speaker This option is set 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—Default
Keyboard Backlight Tmeout on AC	Allows to define the timeout value for the keyboard backlight when an AC adapter is plugged in the system. The Keyboard Backlight tiemout value is only in effect when the backlight is enabled. 5 seconds 10 seconds—Default 15 seconds 30 seconds 1 minute 5 minutes 15 minutes Never
Keyboard Backlight Tmeout on Battery	Allows to define the timeout value for the keyboard backlight when the system is running only on battery power. The Keyboard Backlight tiemout value is only in effect when the backlight is enabled. 5 seconds 10 seconds—Default 15 seconds 30 seconds 1 minute 5 minutes 15 minutes Never
Touchscreen	This field controls whether the touchscreen is enabled or disabled.
Unobtrusive Mode	Allows you to turn off all light and sound emissions in the system when you press Fn+F7. This option is disabled by default.
Miscellaneous devices	Allows you to enable or disable various on board devices. Enable Camera—Default Enable Hard Drive Free Fall Protection—Default Enable Secure Digital (SD) Card—Default Secure Digital (SD) Card Boot Secure Digital Card (SD) Read-Only Mode
MAC Address Pass-Through	This 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. When the Integrated NIC option is selected, we recommend one of the following: Disable the integrated NIC in the BIOS to prevent any issues from multiple NICs on the network with identical MAC addresses. If the Integrated NIC cannot be disabled, do not connect it to the same network as your dock or USB Ethernet dongle.