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 XPS 8940 System BIOS

Restart required
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. This update addresses the Intel Security Advisories INTEL-SA-00527, INTEL-SA-00532, and INTEL-SA-00561. A security advisory is a statement when a security vulnerability impacts a product, and a remedy is available for the vulnerability.

Fixes & Enhancements

- Firmware updates to address the Intel Security Advisory INTEL-SA-00527 (CVE-2021-0091, CVE-2021-0107, CVE-2021-0103, CVE-2021-0111, CVE-2021-0114, CVE-2021-0115, CVE-2021-0116, CVE-2021-0117, CVE-2021-0118, CVE-2021-0119, CVE-2021-0124, CVE-2021-0125, CVE-2021-0156).
- Firmware updates to address the Intel Security Advisory INTEL-SA-00532 (CVE-2021-0127).
- Firmware updates to address security vulnerabilities.
- Firmware updates to address the Intel Security Advisory INTEL-SA-00561 (CVE-2021-0145).
Read More

Version

2.4.0, 2.4.0

Release date

10 Jan 2022

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.
Available formats View Important Information

File Format: CPG BIOS Executable for Windows/DOS
File Name: XPS_8940_2.4.0.exe
File Size: 15.29 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:
ab2789dbe44a03c02425b6ed621b4d02
SHA1:
b515e9ffcb0dd1cc96560b86bee4935d6347bd34
SHA-256:
e2317bf41a01d736681059a87e02ca9100f6a3d531f03c97492a92b48fd2d1d4

File Format: BIOS Recovery Image File
File Name: BIOS_IMG.rcv
File Size: 15.29 MB
Format Description:
This file format consists of a BIOS Recovery image file. This file is used for the System BIOS Recovery process to recover a system from a corrupted BIOS.
To ensure the integrity of your download, please verify the checksum value.
MD5:
6d95a06aefe22ae7856cfc6ae216ce40
SHA1:
00734545d78c51c05b9f2acc929ecd003cd817a4
SHA-256:
80f44a5bacd0d7006c932d5c7f36f44a96986c086f8ea6078e291978730ef1f8

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

Additional details

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- Once the BIOS is upgraded, you cannot downgrade the BIOS to versions earlier than 2.2.0. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- Before upgrading the processor to 11th generation Intel processor, you must update the BIOS to the latest version.
- Do not turn off the system until the BIOS update process has been completed.
2.10.011 Oct 2022
2.9.008 Aug 2022
2.8.006 Jul 2022
2.7.009 Jun 2022
2.6.011 May 2022
2.5.116 Apr 2022
2.3.009 Nov 2021
2.2.005 Oct 2021
2.1.327 Aug 2021
2.1.129 Jun 2021
2.0.1308 Jun 2021
2.0.1221 Apr 2021
2.0.1102 Mar 2021
Dell Inspiron 5600,7600
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 the power or interrupt the BIOS update process during the update.

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.
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.

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 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 progress bar at the Dell logo screen. The system restarts again when the update is complete.

Need help with BIOS issues?

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

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