Owners Manual
Table Of Contents
- Dell Precision 7920 Tower Owner's Manual
- Contents
- Chassis
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Power supply unit (PSU)
- Side cover
- Air shroud
- Front bezel
- PCIe holder
- Intrusion switch
- Front system fan assembly
- Internal chassis speaker
- Hard disk drive and the Optical disk drive bezel
- Hard disk drive assembly
- NVMe Flexbay
- Front input and output bezel
- Front input and output panel
- Rear system fan
- Right side cover
- Hard disk drive and optical disk drive frame
- Slim Optical Disk Drive
- 5.25-inch optical drive
- Power distribution and fan control board
- Front HDD cable and fan assembly
- Fan bracket
- Graphical processing unit(GPU)
- Memory
- Coin cell battery
- Processor heat sink module
- System board
- RAID controller battery
- VROC module
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
Power management
Table 11. Power Management
Option Description
AC Recovery Specifies how the computer will respond when AC power is applied after a AC power loss. You
can set the AC Recovery to:
● Power Off (Default)
● Power On
● Last Power State
Auto On Time Allows you to set the time at which the computer must turn on automatically. The options are:
● Disabled (Default)
● Every Day
● Weekdays
● Select Days
Deep Sleep Control Allows you to define the controls when Deep Sleep is enabled.
● Disabled (Default)
● Enabled in S5 only
● Enabled in S4 and S5
USB Wake Support Allows you to enable USB devices to wake the system from standby.
● Enable USB Wake Support
Default Setting: The option is disabled.
Wake on LAN This option allows the computer to power up from the off state when triggered by a special LAN
signal. Wake-up from the Standby state is unaffected by this setting and must be enabled in the
operating system. This feature only works when the computer is connected to AC power supply.
● Disabled - Does not allow the system to power on by special LAN signals when it receives a
wake-up signal from the LAN or wireless LAN.
● LAN Only - Allows the system to be powered on by special LAN signals.
● LAN with PXE Boot - Allows the system to power on and immediately boot to PXE when it
receives a wake-up packet sent to the system in either the S4 or S5 state.
This option is Disabled by default.
Block Sleep Allows you to block entering to sleep (S3 state) in OS Environment.
Default Setting: Disabled
POST behavior
Table 12. POST Behavior
Option Description
Numlock LED Specifies if the NumLock function can be enabled when the system boots. This option is enabled
by default.
Keyboard Errors Specifies whether keyboard related errors are reported when it boots. This option is enabled by
default.
Fastboot Allows you to speed up the boot process by bypassing some compatibility steps. The options are:
● Minimal
● Thorough - This option is enabled by default.
● Auto
106 System Setup