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: OptiPlex_7090_1.1.36.exe
File size: 40.6 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 99ad94da1ca9fe116ae4338cf969e6a5
SHA1: fd37183accf42c10c9bb12cee66e59b018cf9d0b
SHA-256: 2178b7932a3a0721f5ecd2293521324afad35edffe785d7794f134e981ed10ff
File Format: 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.
File Name: BIOS_IMG.rcv
File size: 40.6 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: c86e23f3334d168a0e50d902a1e1b4e5
SHA1: 080b95de5993944209fe9857209d84978468cdab
SHA-256: 947a40241da9c280a8d84f68e8b2f08ca46523bb23e6120f0a9e6bd9028ff23e
Fixes & Enhancements
- Fixed the issue where the system fails to PXE boot off the PCIe Network Interface Cards (NICs) through Wake-on-LAN. This issue occurs after the system resumes from Hibernate mode or shutdown.
- Fixed the issue where unsaved files or data are lost and applications or browsers that are opened are closed after the system resumes from Sleep mode.
- Fixed the issue where the system that is shut down does not wake up through Wake-on-LAN.
- Fixed the issue where the BIOS recovery through M.2 PCIe SSD-2, M.2 PCIe SSD-3, and SATA hard drive fails.
- Fixed the issue where the system displays error message when installing Ubuntu operating system.
- Fixed the issue where Thunderbolt 4 device stops working after the system resumes from Sleep mode or Hibernate mode or after shutdown.
- Firmware security updates to address CVE-2021-21571 and CVE-2021-21572
Important Information
- Do not shut out down the system until the BIOS update is completed.
- Once the BIOS is upgraded to version 1.1.36, you cannot downgrade the BIOS to earlier versions. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- 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.
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 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 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.
5. 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. You do not need a bootable USB drive.
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 Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.
Applies to
OptiPlex 7090 System BIOS