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 PowerEdge BIOS R740/R740xd/R640/R940/7920R 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 the Intel Speed Select Technology - Base Frequency (SST-BF) feature.
- Updated the "Processor and Memory Reference Code" to 0595.D.04.
- Added the option to enable or disable Correctable Error Logging in the Memory Settings of the System BIOS Settings.
- Enhanced the Lifecycle error messages due to correctable memory errors. You will need to upgrade both the BIOS and iDRAC firmware to make sure that the new messages display correctly 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_004Y7_WN64_2.5.4.EXE
File Size: 27.45 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:
c57b80c2d7bd782d4e100fb772ed1c02
SHA1:
7b9b9aa08657470145e2ee7367e7e93eb6802b4b
SHA-256:
dc176d12b2c080c078a2c0b15ff52b0ecea3f7862ee6bc88220ad81e7700655b

File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_004Y7_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:
a1c79ca8c5178c9f1e783dc1525b3e4b
SHA1:
779f94628c95ea1a8856e4b65ac5a8b894bc5ce2
SHA-256:
803cddb3e40c45fa7c06663cd06b9a488232f00584378c384210c5de4df21a42

File Format: A self-extracting file for use in 64-bit machines
File Name: R740-020504.efi
File Size: 19.41 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:
aadbbef8220ac1565e2a746a53d359f5
SHA1:
0f6c91b2c84c0ad981c75aaac9a928d1faa00bf4
SHA-256:
ec806a7061557f1cccd909a264c58f77eb735091ee6a7b27baf9358a2a2289bb

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: R740_R740XD_R640_R940_Prec7920_BIOS.2.5.4.pdf
File Size: 211.94 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:
f3a0c870bcaeec86d90891542efe11b2
SHA1:
c728df2fc3746f61a9e72b15c2144748491b8657
SHA-256:
8668b8df62394a2fc0dc3fec47943bb2e8c81cf41cd7f6f3f91d6659c420c148

File Format: Update Package for Red Hat Linux
File Name: BIOS_004Y7_LN_2.5.4.BIN
File Size: 28.79 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:
4ac1f5d89daf61e51e2080033d9950c4
SHA1:
3395e72daee4255b161e23472b0271edd7ef6a88
SHA-256:
b3d418a1aca8793c92d50ea8be486dcc9e12f4b4424c7389fab230c6a827f29a

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

Additional details

Show All | Hide All
INFO,BIOS,LCK,FW,2.5.4
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.
--------------------------------------------------------------------------------
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.
-----------------------------------------------------
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.
-----------------------------------------------------
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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