Dell Precision 7520/7720 System BIOS

Restart required

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.

Driver Id : T1J38

Importance : Critical

Version : 1.9.1, 1.9.1 Latest version Recommended version Latest and Recommended version

Release Date : 19 Feb 2018

Download Type : System BIOS

Category : BIOS

This package provides the Dell System BIOS update and is supported on Dell Precision 7520/7720 for Windows and DOS Operating Systems.

Download Files

File Format: 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.

File Name: Precision_7x20_1.9.1.exe

File size: 10.25 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: 6c41239e048c61a2b76b1c4e631edfec

SHA1: 2a478707a45d0b435117bbc0d8995fe17bcbb996

SHA-256: 9a488d0a0e020a76cbe69d9c4eb96739f66501a7ba413687c4ed681aa344dc1f

Download .EXE

File Format: This file format contains plain text which can be viewed with a standard text editor.

File Name: Precision_7x20_1.9.1.txt

File size: 8.29 KB

To ensure the integrity of your download, please verify the checksum value.

MD5: 20c211dd218d49771456ac9751b476bd

SHA1: a8cb69b0ea7c9ed139e636d1becfb068b3870e0a

SHA-256: ee845e97d6ccfd28e949168eb9d84fa43e604bc54f5991fa772a6cfd4da5c7de

Download .TXT

Fixes & Enhancements

Fixes:
- Update to the latest CPU microcode to address CVE-2017-5715 and associated Intel Reboot issue.
- Updated Intel Management Engine firmware to address security advisories INTEL-SA-00086 (CVE-2017-5705, CVE-2017-5708, CVE-2017-5711 & CVE-2017-5712) & INTEL-SA-00101(CVE-2017-13077, CVE-2017-13078 & CVE-2017-13080).
- Fixed the internal keyboard fast typing character loss issue with high words per minute (WPM) speed.

Enhancements:
- Updated Embedded Controller Engine Firmware.

Installation instructions

BIOS Update Executable for Windows/DOS

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.

Run the BIOS update utility from DOS environment if Legacy Boot Mode(Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. DOS System will auto restart and update BIOS while system startup screen.
5. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment if UEFI boot mode with Load Legacy Option disabled (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to "General-Boot Sequence - Boot List Option".
3. Change "UEFI" to "Legacy" of Boot List Option.
4. Click "Apply","Exit" to save changes and reboot system.
5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. DOS system will auto restart and update BIOS while system startup screen.
8. After BIOS update finished, system will auto reboot.
9. Go to BIOS Setup by pressing F2 and go to "General > Boot Sequence > Boot List Option".
10. Change "Legacy" to "UEFI" Boot Option.
11. Go to "Exit > Exit Save Changes" and reboot system.

Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: 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.

Dell Precision 7520/7720 System BIOS

Download Files

Fixes & Enhancements

Important Information

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to