Driver Details

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

Dell Precision 7520/7720 System BIOS

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

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.

Version

Version 1.9.1, 1.9.1

Category

BIOS

Release date

19 Feb 2018

Last Updated

19 Feb 2018

Importance

Available formats

File Format:Windows/DOS
File Name:Precision_7x20_1.9.1.exe
Download Type:HTTP
File Size: 10 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:
6c41239e048c61a2b76b1c4e631edfec
SHA1:
2a478707a45d0b435117bbc0d8995fe17bcbb996
SHA-256:
9a488d0a0e020a76cbe69d9c4eb96739f66501a7ba413687c4ed681aa344dc1f
File Format:Rel-Notes-Text
File Name:Precision_7x20_1.9.1.txt
Download Type:HTTP
File Size: 8 KB
Format Description:This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
MD5:
20c211dd218d49771456ac9751b476bd
SHA1:
a8cb69b0ea7c9ed139e636d1becfb068b3870e0a
SHA-256:
ee845e97d6ccfd28e949168eb9d84fa43e604bc54f5991fa772a6cfd4da5c7de

By downloading, you accept the terms of the Dell Software License Agreement.

Applies to
Precision 7520 system BIOS
Precision 7720 system BIOS
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.
Important Information
Important:
- Not allowed to downgrade the BIOS prior to 1.4.1.
x
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell highly recommends applying this update as soon as possible. The update contains changes to improve the reliability and availability of your Dell system.