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 2.9.4

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.
Enhancement to address the security vulnerabilities (Common Vulnerabilities and Exposures - CVE) such as CVE-2020-0587, CVE-2020-0588, CVE-2020-0590, CVE-2020-0591, CVE-2020-0592, CVE-2020-0593, CVE-2020-8705, CVE-2020-8738, CVE-2020-8739, CVE-2020-8740, CVE-2020-8755 and CVE-2020-8764.
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Fixes & Enhancements

Fixes
- Updated the "Processor and Memory Reference Code" for the second-generation Intel Xeon Processor Scalable Family to IPU 2020.2.
- Removed the Logical Processor requirement for Monitor/MWait.
- Fixed other miscellaneous issues.

Enhancements:
- Updated the "Processor and Memory Reference Code" for the second-generation Intel Xeon Processor Scalable Family to IPU 2020.2.
- Updated the Processor Microcode to version 0x3003 for the second-generation Intel Xeon Processor Scalable Family.
- Updated the Processor Microcode to version 0x6A08 for the second-generation Intel Xeon Processor Scalable Family.
- Updated the Intel Optane persistent memory 100 series UEFI driver to version 1.0.0.3506.
- Updated the Intel Management Engine firmware version to 04.01.04.423.
- Enhancement to address the security vulnerabilities (Common Vulnerabilities and Exposures - CVE) such as CVE-2020-0587, CVE-2020-0588, CVE-2020-0590, CVE-2020-0591, CVE-2020-0592, CVE-2020-0593, CVE-2020-8705, CVE-2020-8738, CVE-2020-8739, CVE-2020-8740, CVE-2020-8755 and CVE-2020-8764.
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Version

2.9.4, 2.9.4

Release date

20 Nov 2020

Download Type

System BIOS

Category

BIOS

Importance

Urgent
Dell 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_7K4YC_WN64_2.9.4.EXE
File Size: 27.42 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:
152d4d49d7f17799b3534e71a200cb05
SHA1:
0d739a970d82d3f6c72274238d30579f19f9830a
SHA-256:
0762d6f5cc6df836ff7b1d309197026f52b882d7f6a2a903825060c9c124062c

File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_7K4YC_LN_2.9.4.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:
f102c18dafcc3168cc6c76e651224936
SHA1:
895eab99a0fbcca9b86faac04876505aee74ff06
SHA-256:
4438f49bea4f800b9d2232cb329ba49afcd5b4637ceb40a790f9bcc3b2e48dbc

File Format: A self-extracting file for use in 64-bit machines
File Name: MX740c-020904.efi
File Size: 19.4 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:
b9c9a0306ae21b043c47d71b2a696ec8
SHA1:
9b5fa0bba5b749452a5a9a7c14aaad3aeb51a3ee
SHA-256:
e560e23aa85267d250a6d2c7a059c6a0922b6be37901b1abedfc0067a708a354

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: MX740c_BIOS.2.9.4.pdf
File Size: 157.1 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:
16752b272f253eb892e927d5f1d3a295
SHA1:
ea0f09d4488dc7b04e9ce93e1193b405f2cdb196
SHA-256:
195c3e0b52f92a0711c231145c764a3465e83858f45ac6d210651a5b00e01984

File Format: Update Package for Red Hat Linux
File Name: BIOS_7K4YC_LN_2.9.4.BIN
File Size: 28.8 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:
405f54c53714e3b91e37be55f978bf36
SHA1:
fad6398249527c1d42516b03b46a25ae2af6c223
SHA-256:
e0eaba2862262abbbad4a16620d6a86c43bb557b5accdbe2adeec13ea47f741e

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 Graphical User Interface (GUI) or RACADM Command Line Interface (CLI) command.
- Physically reduce the memory capacity by removing a few memory modules (improves the speed of the BIOS update process), and then try again.

When you try installing one or more PCIe devices on the system and if the cards require more limited legacy I/O resources, then the system may adjust the legacy I/O resources between the stack and the reboot system automatically. If the system fails during the allocation of PCI resources, then a UEFI0256 error message is logged. You can perform one of the following actions and retry the operation:
- Remove unused PCIe card to free up legacy I/O space.
- Go to System Setup and disable unused PCIe card to free up legacy I/O space.
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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