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 EMC Server BIOS PowerEdge MX740c 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.
- Added the Intel Speed Select Technology - Base Frequency (SST-BF) feature.
- Updated the "Processor and Memory Reference Code" to 0595.D.04.
- Updated a few BIOS Setup help messages.
For more information about specific items added and resolved in this BIOS version, see the Fixes and New and enhanced features sections.
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Fixes & Enhancements

Fixes
- Updated a few BIOS Setup help messages
- Fixed a potential BIOS Recovery failure.
- Issues that were not reported by the Dell EMC customers at the time of current release.

Enhancements
- Added Intel(R) Speed Select Technology - Base Frequency (SST-BF) feature.
- Updated the "Processor and Memory Reference Code" to 0595.D.04.
- Added "Correctable Error Logging" Enable/Disable to System BIOS Settings -> Memory Settings.
- Enhanced LifeCycle Error Messages regarding Correctable Memory Errors. Please upgrade both BIOS and iDRAC firmware to ensure the correct display of the new messages in the LifeCycle logs.
- Changed the default setting of Native tRFC Timing for 16 Gb DIMMs to Enabled.
- In some cases, the memory space-indicated by OS as reserved for hardware-is reduced.
Read More

Version

2.5.4, 2.5.4

Release date

21 Feb 2020

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats View Important Information
File Format: Update Package for MS Windows 64-Bit.
File Name: BIOS_V02PK_WN64_2.5.4.EXE
File Size: 27.35 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:
7ad922f89d7c63cc4c1d4cafa3e14610
SHA1:
7d9861e8ece34658eaa2bd2c21afe8e16d5aa910
SHA-256:
82dce9a99d035b1da957442da02d2dbc82a0777515a01fc30121cfb8b81a0441
File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_V02PK_LN_2.5.4.BIN.sign
File Size: 226 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:
692118ac322f412de8329d6193df705a
SHA1:
e34685a40fe16321f4bbc55b5f3f2713358e0ed3
SHA-256:
a54e2ba75747389d19c16f5a7fab5d50a316efbe9db6ca72145d4df333437e85
File Format: A self-extracting file for use in 64-bit machines
File Name: MX740c-020504.efi
File Size: 19.3 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:
8a19367da5d2f85921dcbdc66d279475
SHA1:
1c37100d631cfaaa02b1cbce6b8080d6cec25fce
SHA-256:
fb06463445f46a08848505b4769a8ec24994f28a8a3d0f48ac2cf2122bcd20e6
File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: MX740c_BIOS.2.5.4_RN.pdf
File Size: 178.66 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:
f0d88d26226b4bd730668e89f850aa86
SHA1:
53f6e40b1fcf46474e39d31e4eae498ebd5749ad
SHA-256:
fb755edd5b3ae0a3713d16369971c30d6a2ba27915d5f33fa4889360a1fe471d
File Format: Update Package for Red Hat Linux
File Name: BIOS_V02PK_LN_2.5.4.BIN
File Size: 28.69 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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
70621820c6588ecc390fdd7267d4fcef
SHA1:
8a2cdf4ad4cdd9682433d2e8f8bc91a0726328b4
SHA-256:
26bd67b7ab67f1855d286db6a7d3b2f19f516b0b77f4a22b20e5837864346e2f

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

Additional details

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When you try updating a BIOS version either under OS (by using an Update Package (DUP)) or under UEFI Shell (a .efi file), the system may take more time to complete the BIOS update process (in case of a system that has 14 TB memory, it takes around 30 minutes to complete the BIOS update process under Windows Server 2016). There are two ways to work around this issue:
- Use an out-of-band BIOS update method--iDRAC GUI or RACADM CLI command.
- Physically reduce the memory capacity by removing a few DIMMs (and thus improve the speed of the BIOS update process), and then try again.
PowerEdge BIOS
Dell EMC Update Package Instructions for EFI
Download
1. Click the "Download Now" 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 EMC Update Package Instructions for Linux DUP:
Download
1. Click the "Download Now" 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 EMC Update Package Instructions for Windows Dup:
Download
1. Click the "Download Now" 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 EMC Update Package Instructions:
Download
1. Click the "Download Now" 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 EMC public key. (You only need to do once on your system.)
2. Verify the Dell EMC Update Package by using its signature file, [model]_BIOS_LX_[version].BIN.sign.

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