Download Files
File Format: Dell Update Packages in native Microsoft Windows 64-bit format do not require that Microsoft WOW64 be installed on the Microsoft Windows Server.
File Name: BIOS_TD6CK_WN64_2.24.0.EXE
File size: 39.69 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 386e8b54c58c54021b86e5ebb03a0e7f
SHA1: 98594daf8965576523dfef36d4e3177c7baab767
SHA-256: b9aeb719126bf710b7076d9a23858d9ea3488f1c291ed88d9b21db172ae84e2f
File Format: 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.
File Name: BIOS_TD6CK_LN64_2.24.0.BIN.sign
File size: 842 Bytes
To ensure the integrity of your download, please verify the checksum value.
MD5: 9dbbc9a79949e7e15150f0fa06e964a5
SHA1: 9850d8191d8ee99822fcf0ece3591e7109475b22
SHA-256: 8efb6f0dcb23ac6830c96d4426f8a5bc3f301d468c050252dc71bb0b2a7943ce
File Format: 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.
File Name: MX740c-022400.efi
File size: 19.46 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 3f87a3fa2c33a70172edb62ad3c8c553
SHA1: 1d27aa91e8cb4382b82438099618cba172186666
SHA-256: c64a3344ddfcbbf28cac0341e907bb17c5858906fcd4e457c0531e79baf98cd9
File Format: 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.
File Name: MX740c_BIOS.2.24.0.pdf
File size: 252.16 KB
To ensure the integrity of your download, please verify the checksum value.
MD5: b4108f3abee486c85eec9eeeccf4f04f
SHA1: 0183d0c01ecd8e3522c58c2edc8dc3a080438cfe
SHA-256: 38091724af5f8a0af81b4eafb8019e4671b572a84d4b45b7fc0d2b205b409e2f
File Format: 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.
File Name: BIOS_TD6CK_LN64_2.24.0.BIN
File size: 29.19 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 08c42b7e3e4704611f3a8fe2959fc700
SHA1: 1cfe57a10a02c5c8c661b2e87859be63bbeb21b2
SHA-256: f9d122a5c1692891b96d1c8333f64c1c1cef18c6b3853bef99f54a3719e93423
Fixes & Enhancements
Fixes:
- Resolved an issue with UEFI iSCSI Boot where the absence of a "NOP in" response was causing disconnects and boot failures from the SAN.
Enhancements:
- Updated the following:
* Processor and Memory Reference Code for the second-generation Intel Xeon Processor Scalable Family to IPU 2025.2.
* Processor Microcode to version 0x3901 for the second-generation Intel Xeon Processor Scalable Family.
* Correct UEFI0305 message as below, which should be "disable" TXT if unable update BIOS.
+ Unable to update BIOS firmware in the previous boot. (Reason: System is in TXT boot environment. To flash the BIOS, disable TXT in BIOS setup and reboot the system.).
- This product release contains security update DSA-2025-156. Any security fix information will be accessible on the Dell Security Advisories and Notices website.
Important Information
- Due to a sighting, Dell has demoted BIOS 2.22.1 for PowerEdge R740, R740xd, R640, and R940, and Precision 7920 Rack Workstation.
- Rolling back to a previous BIOS from 2.14.2 will cause a TXT trusted boot failure with TXT enabled. Since the Intel ACM's SVN (Security Version Number) was increased in BIOS 2.14.2 to address the Security Vulnerabilities CVE-2021-0559, CVE-2021-33123, CVE-2021-33124. The purpose of incrementing the SVN is to prevent executing an older ACM with the vulnerabilities.
* The INTEL ACM's SVN was also increased in the BIOS 2.9.4 since the 1st BIOS revision of this platform as well.
- When using an Update Package (DUP) file or the UEFI Shell command (an EFI file) to update the BIOS version, the process takes longer duration. To resolve this issue, do one of the following:
* Update the BIOS version using an Out-of-Band (OoB) tool such as iDRAC--use GUI or run the RACADM command. See the iDRAC User's Guide or RACADM CLI Reference Guide available on the support site.
* Reduce the system memory capacity by physically removing the memory modules and perform the BIOS update and retry the operation.
- When one or more PCIe devices are installed on the system and if the cards require more of limited legacy I/O resources, the system might modify the I/O resources causing it to restart automatically. The UEFI0256 error message is logged, and the system does not allocate the PCIe resources required. To resolve this issue, do one of the following:
* Remove the PCIe cards from the system that are not used to free up the legacy I/O allocation and provide more I/O allocation space.
* From the System Setup menu, disable to PCIe cards that are not used to free up the legacy I/O allocation.
- When one or more PCIe devices are installed on the system and if the cards require more of Memory-Mapped I/O (MMIO) resources, the system might modify the MMIO resources causing it to restart automatically. The UEFI0256 error message is logged, and the system does not allocate the required PCIe resources required. To resolve this issue, do one of the following:
* Remove the PCIe cards from the system that are not used to free up the MMIO allocation.
* From the System Setup menu, enable the Memory Mapped I/O above 4GB option to free up the MMIO allocation.
NOTE: Before working inside your system, follow the safety guidelines listed in the Safety Instructions topic in the Installation and Services Manual of your respective server model available on the support site.
Supported Operating Systems
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.
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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.
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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.
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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.
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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