Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell Precision 7820 and 7920 Tower System BIOS

Restart required
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.
To view all drivers for your 7920 XL Tower, go to Drivers and downloads.
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7X20T_2.3.1.exe

File Format: Flash BIOS executable
File Name: 7X20T_2.3.1.exe
File Size: 10.52 MB
Format Description
This file format consists of a BIOS-executable file. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
9ce2cbe773ad4666b451bba68f9db762
SHA1:
dd126afbf713d2c07914ac8b514a53ac30632c08
SHA-256:
87ece419bec7a1db419b07e660bd874b41ad3d69b2bd40bb031476e748090c96

Fixes & Enhancements

Fixes:
- Removed the IpSec driver and application.

Enhancements:
- Supports the Intel Optane DC Persistent Memory.
- Updated the Enhanced PreBoot System Assessment (ePSA) firmware.
Read More

Version

2.3.1, 2.3.1

Release date

02 Oct. 2019

Download Type

System BIOS

Category

BIOS

Importance

Critical
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.

Additional details

Show All | Hide All
You cannot downgrade the BIOS from version 2.0.0 to version 1.x.x, due to downgrade restrictions.
2.29.009 Jan. 2023
2.28.012 Dec. 2022
2.26.107 Sep. 2022
2.22.022 Aug. 2022
2.20.012 Apr. 2022
2.18.012 Jan. 2022
2.17.128 Dec. 2021
2.16.119 Nov. 2021
2.14.030 Aug. 2021
2.13.113 Jul. 2021
2.12.027 Jan. 2021
2.8.113 Aug. 2020
2.6.328 May 2020
2.5.028 May 2020
2.4.114 Nov. 2019
2.1.427 Aug. 2019
2.0.511 Jun. 2019
2.0.430 May 2019
1.10.319 Mar. 2019
1.9.230 Jan. 2019
1.8.205 Oct. 2018
1.6.206 Aug. 2018
1.5.702 Jul. 2018
1.4.127 Mar. 2018
1.3.321 Feb. 2018
1.0.305 Oct. 2017
Dell Precision 7820XLT BIOS
Dell Precision 7920XLT BIOS
Dell Precision T7820 BIOS
Dell Precision T7920 BIOS
Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.

Updating the BIOS from BIOS Boot Menu (independent of operating system)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Installation
1. Copy the downloaded file to a USB drive. The USB drive does not need to be bootable device.
2. Insert the USB drive into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one-time boot menu.
5. Select BIOS Update in the section.
6. Click Flash from file to browse the USB drive to locate the downloaded file.
7. Select the file and click Submit.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Update BIOS.
10. Review the Warning message and click Confirm Update BIOS! to proceed with the update.
The system restarts and displays a progress bar at the Dell logo screen. The system restarts again when the update is complete.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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