Download Files
File Format: 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.
File Name: 7X20T_2.3.1.exe
File size: 10.52 MB
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.
Important Information
You cannot downgrade the BIOS from version 2.0.0 to version 1.x.x, due to downgrade restrictions.
Supported Operating Systems
Installation instructions
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.
Applies to
Dell Precision 7820XLT BIOS
Dell Precision 7920XLT BIOS
Dell Precision T7820 BIOS
Dell Precision T7920 BIOS