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 Server PowerEdge BIOS Version 2.9.4
Restart required Installed This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.For more information about specific items added and resolved in this BIOS version, see the Fixes and New and enhanced feature sections. If there's any security fix included in this BIOS, we'll address it in the BIOS external release note.
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Fixes & Enhancements
Fixes:
- Fixed PXE boot failure triggered by IPMI when an boot option is present.
Enhancements:
- Updated the followings:
* Intel processor and memory reference codes to IPU 2026.1.
* Intel processor microcode to version 0x661 in the 4th Generation Intel Xeon Scalable Processors Family.
* Intel processor microcode to version 0x421 in the Intel Xeon CPU Max Series.
* Intel processor microcode to version 0x2D3 in the 5th Generation Intel Xeon Scalable Processors Family.
- This product release may contain security updates DSA-2026-012, DSA-2026-027, and DSA-2026-040. Any security fix information will be accessible on the Dell Security Advisories and Notices website.
Read More- Fixed PXE boot failure triggered by IPMI when an
Enhancements:
- Updated the followings:
* Intel processor and memory reference codes to IPU 2026.1.
* Intel processor microcode to version 0x661 in the 4th Generation Intel Xeon Scalable Processors Family.
* Intel processor microcode to version 0x421 in the Intel Xeon CPU Max Series.
* Intel processor microcode to version 0x2D3 in the 5th Generation Intel Xeon Scalable Processors Family.
- This product release may contain security updates DSA-2026-012, DSA-2026-027, and DSA-2026-040. Any security fix information will be accessible on the Dell Security Advisories and Notices website.
Version
2.9.4, 2.9.4
Release date
10 Feb 2026
Download Type
System BIOS
Category
BIOS
Importance
UrgentDell 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: Update Package for MS Windows 64-Bit.
File Name: BIOS_457WM_WN64_2.9.4.EXE
File Size: 33.97 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
Dell Update Packages in native Microsoft Windows 64-bit format do not require that Microsoft WOW64 be installed on the Microsoft Windows Server.
To ensure the integrity of your download, please verify the checksum value.
MD5:
a6115817b9dac1b315c17880f2a92531
SHA1:
8dfe1070cf0af9f18ce0eeb9764c810ce930b765
SHA-256:
e3793d8190be3055e09477bfb757051a9ea8ba1ecaebbcdd0401a16030d6585b
File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_457WM_LN64_2.9.4.BIN.sign
File Size: 842 Bytes
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
The GnuPG signature for Red Hat Linux Update Package can be used to authenticate Dell's identity in the correlated Red Hat Linux Update Package.
To ensure the integrity of your download, please verify the checksum value.
MD5:
eb680ce5fae0d6265ff1e2bac749bdf9
SHA1:
c3971e1dab2f014b0adf72d0a8d4c7495d1333a7
SHA-256:
f74caf06ae76f9333902f74a7f64c55a14da62407c3a5b5b62c787f47d00f353
File Format: A self-extracting file for use in 64-bit machines
File Name: BIOS_457WM _EFI_020904.efi
File Size: 15.22 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file contains compressed content that can be executed from the EFI Shell or EFI Boot Manager. Download the file to the EFI partition on a removable media device. Insert the removable media, then reboot the system and run the program from the EFI Shell or EFI Boot Manager.
To ensure the integrity of your download, please verify the checksum value.
MD5:
8c0f5ba7ecccfaa8b1d0ea2c64fb8a86
SHA1:
4a7f9fea41f9cd34f4c6f6445584309b2825b62b
SHA-256:
8cfcc366cd73fb8c565e1f2f7947067e44efd3fb0ba321e510936b63d54107e6
File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: R660_R760_C6620_MX760c_Prec7960_BIOS_2.9.4_ReleaseNote.pdf
File Size: 378.76 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This format consists of an archive of PDF files used to provide help and procedural information to the customer. It is necessary to install the Adobe Acrobat Reader first to view the files in this archive.
To ensure the integrity of your download, please verify the checksum value.
MD5:
4ff3eef131401028280df18faaa2af78
SHA1:
734af31d653f47da14f86866f219e91e1b9eda2e
SHA-256:
967afc5bd7361bf1558c15876f12084ac6f20259e6c74f69e11ae4ab617998db
File Format: Update Package for Red Hat Linux
File Name: BIOS_457WM_LN64_2.9.4.BIN
File Size: 25.45 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
Dell Update Packages for Linux can be used as stand-alone applications that ensure that specific validation criteria are met, then apply an update.
Note: Update Packages for Linux are open source. See the Dell Update Packages for Linux Readme for details.
Note: Update Packages for Linux are open source. See the Dell Update Packages for Linux Readme for details.
To ensure the integrity of your download, please verify the checksum value.
MD5:
91636e5522c0fbeeda34620d3b598b4c
SHA1:
d56cec83dbb4f8c2699d0d6cfc507b1d768eaac0
SHA-256:
59422a41eb373e49106f3a09b6fb7c9771994fa482baa3ed020a60423a86429e
By downloading, you accept the terms of the Dell Software License Agreement.
Important Information
- For PowerEdge R660, R760, and R760xa servers, if you update BIOS from v2.4.4 or earlier to v2.5.4, you could experience a PCI bus number shifts symptom. If your applications/script requires a fixed PCI bus number, please skip BIOS version v2.5.4.
- For PowerEdge R760 running BIOS v2.4.4 or later, if you are using the 24 x 2.5" NVMe BP, it is necessary to update BP firmware to versions 3.32 or newer. For more information, refer to this link: PowerEdge 16G: 24x2.5" NVMe switch backplane upstream link showing PCIe Gen4 | Dell US
- BIOS v2.3.5 optimizes the naming of certain PCIe cards (e.g., some NIC, channel card) to display partition number. Due to the naming change, it's expected to observe one-time PR7/PR8 message in LC log on system containing these PCIe cards, after updating BIOS to this version. (Note: PR7 - New device detected / PR8 - Device not detected)
- Please use DUP file to update BIOS in OS or iDRAC GUI if Intel Xeon CPU Max Series is installed on the system. The BIOS update cannot be performed using .efi utility due to a CPU limitation.
- For PowerEdge R760 running BIOS v2.4.4 or later, if you are using the 24 x 2.5" NVMe BP, it is necessary to update BP firmware to versions 3.32 or newer. For more information, refer to this link: PowerEdge 16G: 24x2.5" NVMe switch backplane upstream link showing PCIe Gen4 | Dell US
- BIOS v2.3.5 optimizes the naming of certain PCIe cards (e.g., some NIC, channel card) to display partition number. Due to the naming change, it's expected to observe one-time PR7/PR8 message in LC log on system containing these PCIe cards, after updating BIOS to this version. (Note: PR7 - New device detected / PR8 - Device not detected)
- Please use DUP file to update BIOS in OS or iDRAC GUI if Intel Xeon CPU Max Series is installed on the system. The BIOS update cannot be performed using .efi utility due to a CPU limitation.
Supported Operating Systems
Not Applicable
Applies to
INFO,BIOS LOCK,R660XL,MARFY27
INFO,BIOS LOCK,R660XS,XL,MAR27
INFO,BIOS LOCK,R760XL,MARFY27
INFO,BIOS LOCK,R760XS,XL,MAR27
INFO,BIOS,LCK,FW,2.9.4
PowerEdge BIOS
XE9680L
Installation instructions
Dell Update Package Instructions for DRMK
Download
1. Click the "Download" link to download the file.
2. If the Export Compliance Disclaimer window appears, click the "I agree" link if you accept the agreement.
3. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
NOTE: You must provide a DOS bootable media, such as a USB key. This executable file does not create the DOS system files.
1. Browse to the location where you downloaded the file.
2. Update the name of the file to DOS recognizable format (8.3). If you do not update the filename to 8.3 format, the filename will be truncated to 8.3 format.
3. Copy the file to the bootable device.
4. Boot the system to DOS by using the bootable device.
5. Run the executable under DOS. Follow the instructions provided by the flash utility.
-------------------------------------------------------------------------------
Dell Update Package Instructions for EFI
Download
1. Click the "Download" link to download the file.
2. If the Export Compliance Disclaimer window appears, click the "I agree" link if you accept the agreement.
3. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
You can update the BIOS using a UEFI shell bootable media, such as a USB key.
1. Copy the file to the bootable device with UEFI shell.
2. Boot the system to UEFI shell by using the bootable device.
3. Run the executable (.efi) under the UEFI shell. Follow the instructions provided by the flash utility.
You can also load this executable directly from BIOS Boot Manager without a UEFI shell bootable media.
1. Copy the file to a USB device
2. Plug in the USB device and press F11 during POST to enter BIOS Boot Manager
3. Navigate to the System Utilities menu and select BIOS Update File Explorer
4. Select the USB device and navigate through the directory contents to find the executable (.efi)
5. Launch the executable and follow the instructions provided by the flash utility.
--------------------------------------------------------------------------------
Dell Update Package Instructions for Linux DUP:
Download
1. Click the "Download" link to download the file.
2. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
1. Read over the release information presented by executing the "./[model]_BIOS_LX_[revision].BIN --version" command from the shell.
2. Download and install any prerequisites identified in the above step before proceeding.
3. Install any necessary Embedded Systems Management firmware prior to this BIOS update.
4. Run the update by executing "./[model]_BIOS_LX_[version].BIN" from the shell.
5. Follow the remaining prompts to perform the update.
--------------------------------------------------------------------------------
Dell Update Package Instructions for Windows Dup:
Download
1. Click the "Download" link to download the file.
2. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
1. Browse to the location where you downloaded the file and double-click the new file.
2. Read over the release information presented in the dialog window.
3. Download and install any prerequisites identified in the dialog window before proceeding.
4. Install any necessary Embedded Systems Management firmware prior to this BIOS update.
5. Click the Install button.
6. Follow the remaining prompts to perform the update.
---------------------------------------------
GnuPG Signature of Dell Update Package Instructions:
Download
1. Click the "Download" link to download the file.
2. When the "File Download" window appears, click "Save" to save the file to your hard drive.
Installation
1. Import the Dell public key. (You only need to do once on your system.)
2.Verify the Dell Update Package by using its signature file, [model]_BIOS_LX_[version].BIN.sign
Download
1. Click the "Download" link to download the file.
2. If the Export Compliance Disclaimer window appears, click the "I agree" link if you accept the agreement.
3. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
NOTE: You must provide a DOS bootable media, such as a USB key. This executable file does not create the DOS system files.
1. Browse to the location where you downloaded the file.
2. Update the name of the file to DOS recognizable format (8.3). If you do not update the filename to 8.3 format, the filename will be truncated to 8.3 format.
3. Copy the file to the bootable device.
4. Boot the system to DOS by using the bootable device.
5. Run the executable under DOS. Follow the instructions provided by the flash utility.
-------------------------------------------------------------------------------
Dell Update Package Instructions for EFI
Download
1. Click the "Download" link to download the file.
2. If the Export Compliance Disclaimer window appears, click the "I agree" link if you accept the agreement.
3. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
You can update the BIOS using a UEFI shell bootable media, such as a USB key.
1. Copy the file to the bootable device with UEFI shell.
2. Boot the system to UEFI shell by using the bootable device.
3. Run the executable (.efi) under the UEFI shell. Follow the instructions provided by the flash utility.
You can also load this executable directly from BIOS Boot Manager without a UEFI shell bootable media.
1. Copy the file to a USB device
2. Plug in the USB device and press F11 during POST to enter BIOS Boot Manager
3. Navigate to the System Utilities menu and select BIOS Update File Explorer
4. Select the USB device and navigate through the directory contents to find the executable (.efi)
5. Launch the executable and follow the instructions provided by the flash utility.
--------------------------------------------------------------------------------
Dell Update Package Instructions for Linux DUP:
Download
1. Click the "Download" link to download the file.
2. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
1. Read over the release information presented by executing the "./[model]_BIOS_LX_[revision].BIN --version" command from the shell.
2. Download and install any prerequisites identified in the above step before proceeding.
3. Install any necessary Embedded Systems Management firmware prior to this BIOS update.
4. Run the update by executing "./[model]_BIOS_LX_[version].BIN" from the shell.
5. Follow the remaining prompts to perform the update.
--------------------------------------------------------------------------------
Dell Update Package Instructions for Windows Dup:
Download
1. Click the "Download" link to download the file.
2. When the File Download window appears, click "Save" to save the file to your hard drive.
Installation
1. Browse to the location where you downloaded the file and double-click the new file.
2. Read over the release information presented in the dialog window.
3. Download and install any prerequisites identified in the dialog window before proceeding.
4. Install any necessary Embedded Systems Management firmware prior to this BIOS update.
5. Click the Install button.
6. Follow the remaining prompts to perform the update.
---------------------------------------------
GnuPG Signature of Dell Update Package Instructions:
Download
1. Click the "Download" link to download the file.
2. When the "File Download" window appears, click "Save" to save the file to your hard drive.
Installation
1. Import the Dell public key. (You only need to do once on your system.)
2.Verify the Dell Update Package by using its signature file, [model]_BIOS_LX_[version].BIN.sign
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting guideDrivers help and tutorials
For more downloads go to the Drivers and downloads. For help on using the information on this page, please visit Driver Help and Tutorials.