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 / 7920 Tower System BIOS

Restart required AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package provides the Dell System BIOS update and is supported on Dell Precision 7820 / 7920 Tower for Windows Operating Systems and Boot Menu (OS independent).
To view all drivers for your 7920 XL Tower, go to Drivers and downloads.
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7X20T_1.3.3.exe | 10.87 MB
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File Format: Flash BIOS executable
File Name: 7X20T_1.3.3.exe
File Size: 10.87 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:
c9c36156964289dc14fa8730c21c2c6b
SHA1:
4cb8db44accf4af5f99a3263aa2522733693d574
SHA-256:
0a337b24147fde822477797e5ba842aff424fc341215b9e464b835302875d9ff

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

Fixes
- Update to the latest CPU microcode to address CVE-2017-5715 and associated Intel Reboot issue.
Read More

Version

1.3.3, 1.3.3

Release date

21 Feb 2018

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

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2.39.008 Apr 2024
2.38.002 Feb 2024
2.35.009 Aug 2023
2.34.021 Jun 2023
2.33.130 May 2023
2.31.011 Apr 2023
2.30.014 Mar 2023
2.29.009 Jan 2023
2.28.012 Dec 2022
2.26.107 Sept 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
2.3.102 Oct 2019
2.1.427 Aug 2019
2.0.511 Jun 2019
1.10.319 Mar 2019
1.9.230 Jan 2019
1.8.205 Oct 2018
1.7.108 Aug 2018
1.6.206 Aug 2018
1.5.702 Jul 2018
1.4.127 Mar 2018
1.1.529 Nov 2017
1.0.305 Oct 2017
Dell Precision 7820XLT BIOS
Dell Precision 7920XLT BIOS
Dell Precision T7820 BIOS
Dell Precision T7920 BIOS
BIOS Update Executable for Windows/OS independent

Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect

Perform the BIOS update from the BIOS Boot Menu, independent of operating system.
1. Copy the downloaded file to a USB flash device. It does not need to be bootable
2. Insert the USB flash device 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 Flash Update" in the "Other Options" section
6. Click on the "..." button to browse the USB flash device to locate the downloaded file
7. Select the file and click "Ok"
8. Confirm the Existing System BIOS Information and the BIOS Update Information are as expected
9. Click "Begin Flash Update"
10. Reviewing the Warning message and click "Yes" to proceed with the update
11. The system should restart and show a Flash Progress bar on the Dell logo screen as the BIOS update is being performed
12. The system will restart once again when the Flash update is complete

Note 1: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system. If you don't enable BitLocker on your system you can ignore it.

Need help with BIOS issues?

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

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