User Manual
Table Of Contents
- Dell Precision 5820 Tower Owner's Manual
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Side cover
- Power supply unit (PSU)
- Front bezel
- Hard Disk Drive bezel
- Hard disk drive assembly
- Slim Optical Disk Drive
- Front input and output bezel
- Optical Disk Drive
- 5.25 inch ODD bracket
- Front input and output panel
- Input and output panel bracket
- Intruder switch
- Internal chassis speaker
- Air shroud
- Memory
- Expansion card
- Coin cell battery
- System fan
- Fan bracket
- PCIe holder
- Heat sink and CPU fan assembly
- Processor
- Front system fan
- System board
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
Secure boot
Table 7. Secure Boot
Option Description
Secure Boot Enable
Allows you to enable or disable the Secure Boot Feature.
Click one of the following options:
• Disabled—Default
• Enabled
Expert Key Management
Allows you to enable or disable Expert Key Management.
• Enable Custom Mode
This option is not set by default.
The Custom Mode Key Management options are:
• PK(Default)
• KEK
• db
• dbx
Performance
Table 8. Performance
Option Description
Multi Core Support
This eld species whether the processor has one or all cores
enabled. The performance of some applications improves with the
additional cores.
• Active Processor Cores
Choose any number from 01–08:
NOTE: To enable Trusted Execution mode, all the cores
must be enabled.
Intel SpeedStep
Allows you to enable or disable the Intel SpeedStep mode of
processor.
• Enable Intel SpeedStep
This option is set by default.
C-States Control
Allows you to enable or disable the additional processor sleep
states.
• C states
This option is set by default.
System Setup 75