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
• Only lower case letters are valid, upper case letters are not allowed.
• Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3 Type the system password that you entered earlier in the Conrm new password eld and click OK.
4 Press Esc and a message prompts you to save the changes.
5 Press Y to save the changes.
The computer reboots.
Deleting or changing an existing system and or setup password
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and/or
Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked.
To enter the System Setup, press F2 immediately after a power-on or reboot.
1 In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2 In the System Security screen, verify that Password Status is Unlocked.
3 Select System Password, alter or delete the existing system password and press Enter or Tab.
4 Select Setup Password, alter or delete the existing setup password and press Enter or Tab.
NOTE: If you change the System and/or Setup password, re-enter the new password when promoted. If you delete the
System and/or Setup password, conrm the deletion when promoted.
5 Press Esc and a message prompts you to save the changes.
6 Press Y to save the changes and exit from System Setup.
The computer reboots.
System Setup
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