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 contains the Dell system BIOS update. BIOS is a firmware package 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_2.6.3.exe | 10.76 MB
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File Format: CPG BIOS Executable for Windows/DOS
File Name: 7X20T_2.6.3.exe
File Size: 10.76 MB
Format Description
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
de0060b169a01916b3f90b72b0eb6640
SHA1:
4ffd427f4dd29904efef224fac84614ab97ae461
SHA-256:
9366ae08319a638fac1921a9f2ee9209f616ba60905c2fbe801c5ed0f4e5d345

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

Fixes & Enhancements

- Supports memory speed of 2933 MHz with two memory modules per channel.
- Addressed the issue where the system performs slowly and stops responding eventually.
Read More

Version

2.6.3, 2.6.3

Release date

28 May 2020

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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- Once the BIOS is upgraded, you cannot downgrade the BIOS EXE/Recovery (RCV) to versions earlier than 2.0.0 due to restrictions. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- BIOS updates take no more than 5 minutes to be installed on your system. You can install the updates in the background while using the system.
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
2.5.028 May 2020
2.4.114 Nov 2019
2.3.102 Oct 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 BitLocker 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 power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.

Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. Double-click the new file.
5. 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 BitLocker 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.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.

Installation
1. Copy the downloaded file to a USB drive. You do not need a bootable USB drive.
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 Flash Update in the Other Options section.
6. Click the ... button to browse the USB drive to locate the downloaded file.
7. Select the file and click OK.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Begin Flash Update.
10. Review the Warning message and click Yes to proceed with the update.
The system restarts and displays a Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.

Need help with BIOS issues?

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

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