Changing The Audio Settings; Wlan Cards; Secure Boot Screen Options; Hard Drive Options - Dell Latitude 3390 Owner's Manual

Changing the audio settings

Steps
1. Tap or touch the Search the web and Windows and type Dell Audio.
2. Start the Dell Audio utility from the left pane.

WLAN cards

This laptop supports the Intel Dual Band Wireless AC 7265 card
NOTE: Qualcomm xxxxxx (for example: QCA61x4A) is a product of Qualcomm Technologies, Inc

Secure Boot screen options

Option Description
Secure Boot This option enables or disables the Secure Boot feature.
Enable
● Disabled
● Enabled
Default setting: Enabled.
Expert Key Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable
Management Custom Mode option is disabled by default. The options are:
● PK
● KEK
● db
● dbx
If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:
● Save to File—Saves the key to a user-selected file
● Replace from File—Replaces the current key with a key from a user-selected file
● Append from File—Adds a key to the current database from a user-selected file
● Delete—Deletes the selected key
● Reset All Keys—Resets to default setting
● Delete All Keys—Deletes all the keys

Hard drive options

This laptop supports HDD, M.2 SATA SSD, and M.2 PCIe NVMe.

Identifying the hard drive in Windows 10

Steps
1. Right click on Start menu
2. SelectDevice Manager , and expand Disk drives.
The hard drive is listed under Disk drives.
56 Technology and components
NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will
restore to default settings.