Dell EMC Server BIOS PowerEdge MX740c Version 2.8.2

Restart required

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.

Driver Id : C5R5K

Importance : Urgent

Version : 2.8.2, 2.8.2 Latest version Recommended version Latest and Recommended version

Release Date : 09 Sept 2020

Download Type : System BIOS

Category : BIOS

- Fixed an industry-issue seen on BIOS versions 2.6.4 through 2.8.1 where the system may reset during power-on at the time "Configuring Memory" is displayed on the boot screen. The issue is applicable to DDR4 and NVDIMM-N memory configurations.
- Updated the "Processor and Memory Reference Code" for the second-generation Intel Xeon Processor Scalable Family to IPU 2020.1.
- Enhancement to address the security vulnerabilities (Common Vulnerabilities and Exposures-CVE) such as CVE-2020-0545, CVE-2020-0548, and CVE-2020-0549.
For more information about specific items added and resolved in this BIOS version, see the Fixes and New and enhanced features sections.

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_C5R5K_WN64_2.8.2_02.EXE

File size: 27.39 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: fa6cc7623c3f9c29ef82b6ba2b7c5ba7

SHA1: a3930e9ccce8d515523548503bd0ae823b2d3398

SHA-256: 18f3d3f05052ac3e2fbce67e2613eeb56edae372659724034f5eba3d3a7d5262

Download .EXE

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_C5R5K_LN_2.8.2_02.BIN.sign

File size: 226 Bytes

To ensure the integrity of your download, please verify the checksum value.

MD5: e9275eedb186df41fef5ac57a71f3bb0

SHA1: c0b68a583bfdbaaf673cf58603118af5935dd95b

SHA-256: 74caeacd7605148dd821e9765c186736a6f45e739ff7a750d78de9cdfe2cf64c

Download .SIGN

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-020802.efi

File size: 19.35 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: c45663cba215c3d7be6a14602943051b

SHA1: 40e47e8702c2f9950dc50cadcddc8c0a7e37cb1f

SHA-256: 3474e46e18069f4af4b495e0a4d78711459907d8e02efc1307829b6e523c240d

Download .EFI

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.2.8.2_RN.pdf

File size: 155.72 KB

To ensure the integrity of your download, please verify the checksum value.

MD5: 7cbe2d403b18b22eac8ad0e2ad9844e7

SHA1: a2726ab1b7639e1284d5765c49ef9b77cd84a242

SHA-256: 258f1433bc119d43f33ff4149a3fc3133112586c4ab3837b92a6a735128deeb9

Download .PDF

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_C5R5K_LN_2.8.2_02.BIN

File size: 28.75 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: 684ed800dd6a13f65655ee498d43ccdb

SHA1: db8226a1759d8c470bebb263f065778a3b037a36

SHA-256: 3f8fe1080f1313361c0fcb49903d74be3286bd4c4273df1d61fe86b738136db3

Download .BIN

Fixes & Enhancements

Fixes:
Fixed an industry-issue seen on BIOS versions 2.6.4 through 2.8.1 where the system may reset during power-on at the time "Configuring Memory" is displayed on the boot screen. The issue is applicable to DDR4 and NVDIMM-N memory configurations.
The following are included in 2.8.2 that were released in previous BIOS versions that are no longer available for download.
- Issue with the "Monitor/MWait" option in System Profile Settings on 2-socket servers, remaining enabled after selecting disable.
- Issue with "CPU Domain Power Limiting" not capping to target values.
- Issue with MSR 0x1AD which interfered with the new Turbo Ratio Limits has been fixed, without impacting the factory default settings.
- Added the "Balanced Memory Mode" option under "Intel Persistent Memory Performance" in System Profile setting.
- Issue with the memory capacity changing when "Node Interleaving" or "Sub NUMA Cluster" is enabled.
- Fixed an issue with Maximum Payload size because it resulted in a Purple Screen of Death (PSoD) in VMware ESXi when an NVMe drive is hot plugged in certain configurations.
- Fixed an issue where there was an improper functioning of the MSR 0x1AD (TURBO_RATIO_LIMITS_RATIOS) register.
- Fixed other miscellaneous issues.

Enhancements:
The following are included in 2.8.2 that were released in previous BIOS versions that are no longer available for download.
- Added an option in "DRAM Refresh Delay" in Memory Settings, to disable refresh postponement.
- Updated the "Processor and Memory Reference Code" for the second-generation Intel Xeon Processor Scalable Family to IPU 2020.1.
- The S140 firmware is updated to 5.5.2-0006.
- The memory self-healing feature is added to perform memory self-healing after an uncorrectable error (MEM 0001) or burst of correctable errors (MEM 8000). Memory self-healing for a MEM 0001 event will execute automatically, but for a series of MEM 8000 events, self-healing is initiated after a system restart.
- Updated the Processor Microcode to version 0x2F00 for the second-generation Intel Xeon Processor Scalable Family.
- Updated the Processor Microcode to version 0x69 for the Intel Xeon Processor Scalable Family.
- Updated the Intel Management Engine firmware to version 04.01.04.381.
- Updated the BIOS ACM (authenticated code module) to version 1.7.3.2019.07.12.
- Updated to support the Apache Pass (Optane DC Persistent Memory) version to 1.0.0.3497.
- Enhancement to address the security vulnerabilities (Common Vulnerabilities and Exposures-CVE) such as CVE-2020-0545, CVE-2020-0548, and CVE-2020-0549.

Important Information

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 (and thus improve 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.

Installation instructions

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.

Dell EMC Server BIOS PowerEdge MX740c Version 2.8.2

Download Files

Fixes & Enhancements

Important Information

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to