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 5540 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 Common Vulnerabilities and Exposures (CVE). Common Vulnerabilities and Exposures (CVE) is a list of security vulnerabilities and exposures that are publicly disclosed.
To view all drivers for your Precision 5540, go to Drivers and downloads.
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Precision_5540_1.18.0.exe
Enter the Service Tag of your device to check the compatibility of this download with your device.

File Format: CPG BIOS Executable for Windows/DOS
File Name: Precision_5540_1.18.0.exe
File Size: 21.96 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:
fc9af622b6f17ff1074fad92d38cd079
SHA1:
68dc082ed052a01dba0f8c77edd1c490dd97a788
SHA-256:
0cd3e1dceffac7ce36164b8a364d254f4d9ba495850b26cfad0c9f21401cefb2

Fixes & Enhancements

- Firmware updates to address security vulnerabilities including (Common Vulnerabilities and Exposures - CVE) such as CVE-2022-32493, CVE-2022-32489, CVE-2022-32491, CVE-2022-0778, and CVE-2022-32484.
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Version

1.18.0, 1.18.0

Release date

09 Aug 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.
View Important Information

File Format: BIOS Recovery Image File
File Name: Precision_5540_1.18.0.rcv
File Size: 21.96 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:
fc9af622b6f17ff1074fad92d38cd079
SHA1:
68dc082ed052a01dba0f8c77edd1c490dd97a788
SHA-256:
0cd3e1dceffac7ce36164b8a364d254f4d9ba495850b26cfad0c9f21401cefb2

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

Additional details

Show All | Hide All
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.
1.19.012 Oct 2022
1.17.013 Jun 2022
1.16.027 Apr 2022
1.15.011 Jan 2022
1.14.110 Nov 2021
1.13.003 Sep 2021
1.12.029 Jul 2021
1.11.029 Jun 2021
1.10.019 May 2021
1.9.120 Jan 2021
1.8.129 Jul 2020
1.7.022 May 2020
1.6.006 Apr 2020
1.5.014 Jan 2020
Precision 5540 System 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 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.

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.
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. 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.

Need help with BIOS issues?

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

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