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 2.5.4
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:
- None.
Enhancements:
- Updated the followings:
* Intel processor and memory reference codes to UPLR3(Unified Post Launch Release 3) OOB.
* Intel processor microcode to version 0x622 in the 4th Generation Intel Xeon Scalable Processors Family.
* Intel processor microcode to version 0x3E0 in the Intel Xeon CPU Max Series.
* Intel processor microcode to version 0x292 in the 5th Generation Intel Xeon Scalable Processors Family.
- Upgraded the Integrated Remote Access Controller (iDRAC) HII settings engine to version 5.00.00.19.
- New UEFI messages have been added for various Driver Health Statuses:
* UEFI0457: "Configuration required"
* UEFI0458: "Repair required"
* UEFI0459: "Failed"
* UEFI0460: "Reconnect required"
* UEFI0461: "Reboot required"
- This product release contains security update DSA-2024-381, DSA-2025-038, DSA-2025-041, DSA-2025-042, and DSA-2025-046. Any security fix information will be accessible on the Dell Security Advisories and Notices website.
Read More- None.
Enhancements:
- Updated the followings:
* Intel processor and memory reference codes to UPLR3(Unified Post Launch Release 3) OOB.
* Intel processor microcode to version 0x622 in the 4th Generation Intel Xeon Scalable Processors Family.
* Intel processor microcode to version 0x3E0 in the Intel Xeon CPU Max Series.
* Intel processor microcode to version 0x292 in the 5th Generation Intel Xeon Scalable Processors Family.
- Upgraded the Integrated Remote Access Controller (iDRAC) HII settings engine to version 5.00.00.19.
- New UEFI messages have been added for various Driver Health Statuses:
* UEFI0457: "Configuration required"
* UEFI0458: "Repair required"
* UEFI0459: "Failed"
* UEFI0460: "Reconnect required"
* UEFI0461: "Reboot required"
- This product release contains security update DSA-2024-381, DSA-2025-038, DSA-2025-041, DSA-2025-042, and DSA-2025-046. Any security fix information will be accessible on the Dell Security Advisories and Notices website.
Version
2.5.4, 2.5.4
Release date
26 Feb 2025
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_K77XK_WN64_2.5.4.EXE
File Size: 36.94 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:
eacc683992e1510bacebbce2df19d502
SHA1:
7c01f8318de0923532631c95d3660f88778f2fcb
SHA-256:
43613f0747eb93489b91d3a4ab4d5cfd53a0035defc8cac2c21e9aa10b636686
File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_K77XK_LN64_2.5.4.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:
90438a3b07c5587159fcca228da6e0b2
SHA1:
037cc3e8fb722489592e4201d5c35a55c37eba37
SHA-256:
b1033c5750969e21448206712d9f88c73e7e22e938eb20da7c1f1ceceac79959
File Format: A self-extracting file for use in 64-bit machines
File Name: BIOS_K77XK_EFI_020504.efi
File Size: 15.04 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:
dfda78f417f5ebf94f91e8a05a4798bc
SHA1:
83d87b46406a64134b5a257633b5834506085150
SHA-256:
85ae3a08de53e04101da56cb5a7a55eddcb966b39cf55ac73e88974321319408
File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: R660_R760_C6620_MX760c_Prec7960_BIOS_2.5.4_ReleaseNote.pdf
File Size: 326.63 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:
ff4a4f7ebf7e48cfcf6b52c1b8e574ea
SHA1:
3fdff1d99ab0240610d78dffbb4d7110bba3bae7
SHA-256:
8fd16091e77f84c072f5a8c71b529f1a5f12ee5a139871378ad222b10afdeb10
File Format: Update Package for Red Hat Linux
File Name: BIOS_K77XK_LN64_2.5.4.BIN
File Size: 23.47 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:
67b969e1791f688469bc7a48be56aee0
SHA1:
417560057187c94566d740064d6af88f31463c09
SHA-256:
75b4bf77a7e63d99d1cfb19d7832225e1bb43857803700f0eee36389f1d6ef38
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,LCK,FW,2.5.4
PowerEdge BIOS
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.