- Notes, cautions, and warnings
- Working on your computer
- Disassembly and reassembly
- Recommended Tools
- System Overview
- Removing the Power Supply Unit - PSU
- Installing the Power Supply Unit - PSU
- Removing the Computer Cover
- Installing the Computer Cover
- Removing the PSU Card
- Installing the PSU Card
- Removing the Front Bezel
- Installing the Front Bezel
- Removing the Slim Line Optical Drive
- Installing the Slim Line Optical Drive
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Speaker
- Installing the Speaker
- Removing the HDD Thermal Sensor
- Installing the HDD Thermal Sensor
- Removing the Input-Output Panel
- Installing the Input-Output Panel
- Removing the Memory Shroud
- Installing the Memory Shroud
- Removing the Memory
- Installing the Memory
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the PCI Card
- Installing the PCI Card
- Removing the PCIe-Card Retention
- Installing the PCIe card retention
- Removing the System-Fan Assembly
- Installing the System-Fan Assembly
- Removing the Heatsink Assembly
- Installing the Heatsink Assembly
- Removing the Heatsink Fan
- Installing the Heatsink Fan
- Removing the Processor
- Installing the Processor
- System Board Components
- Removing the System Board
- Installing the System Board
- Additional Information
- System setup
- Diagnostics
- Troubleshooting your computer
- Technical Specifications
- Contacting Dell
Dell Precision Tower 5810 Owner's Manual
Updating the BIOS in Windows
It is recommended to update your BIOS (System Setup) when you replace the system board or if an update is available.
NOTE: If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re enabled after the BIOS update is completed.
CAUTION:If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system re-install.
- Restart the computer.
-
Go to
Dell.com/support.
- Enter the Service Tag or Express Service Code and click Submit.
- Click Detect Product and follow the instructions on screen.
- If you are unable to detect or find the Service Tag, click Choose from all products.
-
Choose the
Products category from the list.
NOTE:Choose the appropriate category to reach the product page.
- Select your computer model and the Product Support page of your computer appears.
-
Click
Get drivers and click
Drivers and Downloads.
The Drivers and Downloads section opens.
- Click Find it myself.
- Click BIOS to view the BIOS versions.
- Identify the latest BIOS file and click Download.
-
Select your preferred download method in the
Please select your download method below
window, click
Download File.
The File Download window appears.
- Click Save to save the file on your computer.
-
Click
Run to install the updated BIOS settings on your computer.
Follow the instructions on the screen.
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