Personal Computer User Manual
Table Of Contents
- Dell OptiPlex 9020 AIO Owner's Manual
- Working on Your Computer
- Removing and Installing Components
- System Overview
- Removing the VESA Stand
- Installing the VESA Stand
- Removing the Back Cover
- Installing the Back Cover
- Removing the Memory
- Installing the Memory
- Removing the VESA Mount Bracket
- Installing the VESA Mount Bracket
- Removing the Power and On-Screen Display (OSD) Buttons Board
- Installing the Power and OSD Buttons Board
- Removing the System-Board Shield
- Installing the System-Board Shield
- Removing the Converter Board
- Installing the Converter Board
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Optical Drive
- Installing the Optical Drive
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Intrusion Switch
- Installing the Intrusion Switch
- Removing the Wireless Local Area Network (WLAN) Card
- Installing the WLAN Card
- Removing the Heat-Sink Assembly
- Installing the Heat-Sink Assembly
- Removing the Processor Fan
- Installing the Processor Fan
- Removing the Power-Supply Fan
- Installing the Power-Supply Fan
- Removing the I/O Board Shield
- Installing the I/O Board Shield
- Removing the Power Supply Unit (PSU)
- Installing the Power Supply Unit
- Removing the Processor
- Installing the Processor
- Removing the Speakers
- Installing the Speakers
- Removing the System Board
- System Board Layout
- Installing the System Board
- Removing the Heat Sink (Graphics Card)
- Installing the Heat Sink (Graphics Card)
- Removing the Antenna Module
- Installing the Antenna Module
- Removing the Display Panel
- Installing the Display Panel
- Removing the Camera
- Installing the Camera
- System Setup
- Technical Specifications
- Contacting Dell
Option Description
• Disable
• Enable - This option is enabled by default
• On-Silent
CPU XD Support Allows you to enable or disable the execute disable mode of the processor.
• Enable CPU XD Support - This option is enabled by default.
OROM Keyboard Access Allows you to determine if you access the Option Read Only Memory (OROM)
configuration screens via hotkeys during boot. These settings prenvent access to the
Intel RAID (CTRL+I) or Intel Management Engine BIOS Extension (CTRL+P/F12).
• Enable - User may enter OROM configuration screens via the hotkey. This
option is enabled by default.
• One-Time Enable - User can enter the OROM configuration screens via the
hotkeys during the next boot. After the boot, the setting will revert to disabled.
• Disable - User can not enter the OROM configuration screens via the hotkey.
This option is set to Enable by default.
Admin Setup Lockout Allows you to enable or disable the option to enter setup when an admin password is
set.
• Enable Admin Setup Lockout - This option is not set by default.
HDD Protection Support Allows you to enable or disable the HDD Protection feature.
• HDD Protection Support - This option is disabled by default.
Table 5. Secure Boot
Option Description
Secure Boot Enable This option enables or disables the Secure Boot feature. To enable the Secure Boot,
the computer has to be in UEFI boot mode and the Enable Legacy Option ROMs option
needs to be turned-off.
• Disabled
• Enabled - Enabled by default
Expert Key Management Allows you to manipulate the security key databases only if the system is in Custom
Mode. The Enable 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
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