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 Server PowerEdge R660/R760/C6620/MX760c/7960R/R860/R960/HS5610/HS5620/R760xa/R660xs/R760xs/XR7620/R760xd2/T560 BIOS Version 1.5.6
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.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:
- Fixed the issue where the user cannot enter the BIOS SETUP (with F2) with wrong setup password entered under 3 times when the setup is under lockdown (read only) mode.
- Fixed a system timing issue with the 4th Generation Intel Xeon Scalable Processors Medium Core Count (MCC) CPU under certain conditions. It may result in a Caching Home Agent (CHA) Table Of Request (TOR) timeout potentially leading to a system hang. An extra cold reboot will be performed after the BIOS update to let the fix take effect.
- Better NVMeo-F Discovery Service error handling. For example, fixed the crash that occurs when NVMe-oF is configured to use IPv4 but received IPv6 addresses from Discovery Service.
- System with Intel Xeon CPU Max Series under HBM-only mode configuration doesn't reset the system when trusted boot failed due to the customized policy. An example for this would be when setting a minimum allowable version of ACM to prevent from using previous ACM revisions.
Enhancements:
- Added Intel Optimized Power Mode under BIOS SETUP "System Profile Settings" page.
- Added Intel Xeon CPU Max Series Flat Mode
- Supported "Optimizer Mode" feature under BIOS setup "Processor Settings" page to have better performance for the following platforms. The iDRAC version needs to be 6.10.85.00 or a higher one:
* Added MX760c with air cooling / liquid cooling.
* Added R660 with air cooling.
- Added pre-defined Secure Boot Policies for various operating systems. For example, when the Secure Boot Policy setting in BIOS Setup is set to Windows(R) Boot, the Secure Boot policy includes only those certificates necessary to boot Windows(R) operating systems. These pre-defined policies help reduce the system's attack surface by removing certificates in the Secure Boot Policy that are not needed for the chosen operating system. See F2 System Setup > System BIOS > System Security > Secure Boot Policy.
- Added the "UEFI CA Certificate Scope" setting in F2 System Setup > System BIOS > System Security. This setting controls how the Secure Boot feature uses the industry standard UEFI CA certificate in the Authorized Signature Database (db). For example, system administrators can configure this setting to use the UEFI CA certificate only for verifying boot device firmware (such as RAID controller firmware or NIC firmware) and not for verifying operating system loaders. This is useful in preventing attacks that exploit vulnerable operating system loaders signed by the UEFI CA certificate.
- Added a "Memory Paging Policy" item under the "Memory Setting" page in the BIOS SETUP for latency fine-tuning. Two options are available. "Adaptive Paging" and "Closed Paging". The default is "Closed Paging". which is the same setting as the previous BIOS.
- Proper NVMe over Fabrics (NVMe-oF) setup page design. For example, when IPv6 is selected, suppress DHCP field since NVMeoF utilize IPv6's address autoconfiguration.
- Better NVMe-oF Discovery Service support. For example, when Discovery Service is used with the multiple targets discovered, BIOS will now boot to the first discovered and connectable NVMeoF target. Also, the list of discovered targets can be listed in BIOS F11 menu.
- Supported the M.2 Riser for "Redundant OS Control" feature like booting from the redundant OS on the M.2 SSD if there is such a riser on the system.
- Suppressed all PCIe VDM type 1 errors with DMTF vendor ID, so that the system does not crash because of improper PCIe VDM implemented PCIe devices.
* For examples: Fixed the system hang with Yellow Screen on Display (YSOD) since a PCIe switch in synthetic mode will generate VDM Type 1 error when no NVMe device is installed.
- This product release contains security updates. Once available, information will be accessible on the Dell Security Advisories and Notices website.
- See the release note for details about the updated ingredients in this version.
Read More- Fixed the issue where the user cannot enter the BIOS SETUP (with F2) with wrong setup password entered under 3 times when the setup is under lockdown (read only) mode.
- Fixed a system timing issue with the 4th Generation Intel Xeon Scalable Processors Medium Core Count (MCC) CPU under certain conditions. It may result in a Caching Home Agent (CHA) Table Of Request (TOR) timeout potentially leading to a system hang. An extra cold reboot will be performed after the BIOS update to let the fix take effect.
- Better NVMeo-F Discovery Service error handling. For example, fixed the crash that occurs when NVMe-oF is configured to use IPv4 but received IPv6 addresses from Discovery Service.
- System with Intel Xeon CPU Max Series under HBM-only mode configuration doesn't reset the system when trusted boot failed due to the customized policy. An example for this would be when setting a minimum allowable version of ACM to prevent from using previous ACM revisions.
Enhancements:
- Added Intel Optimized Power Mode under BIOS SETUP "System Profile Settings" page.
- Added Intel Xeon CPU Max Series Flat Mode
- Supported "Optimizer Mode" feature under BIOS setup "Processor Settings" page to have better performance for the following platforms. The iDRAC version needs to be 6.10.85.00 or a higher one:
* Added MX760c with air cooling / liquid cooling.
* Added R660 with air cooling.
- Added pre-defined Secure Boot Policies for various operating systems. For example, when the Secure Boot Policy setting in BIOS Setup is set to Windows(R) Boot, the Secure Boot policy includes only those certificates necessary to boot Windows(R) operating systems. These pre-defined policies help reduce the system's attack surface by removing certificates in the Secure Boot Policy that are not needed for the chosen operating system. See F2 System Setup > System BIOS > System Security > Secure Boot Policy.
- Added the "UEFI CA Certificate Scope" setting in F2 System Setup > System BIOS > System Security. This setting controls how the Secure Boot feature uses the industry standard UEFI CA certificate in the Authorized Signature Database (db). For example, system administrators can configure this setting to use the UEFI CA certificate only for verifying boot device firmware (such as RAID controller firmware or NIC firmware) and not for verifying operating system loaders. This is useful in preventing attacks that exploit vulnerable operating system loaders signed by the UEFI CA certificate.
- Added a "Memory Paging Policy" item under the "Memory Setting" page in the BIOS SETUP for latency fine-tuning. Two options are available. "Adaptive Paging" and "Closed Paging". The default is "Closed Paging". which is the same setting as the previous BIOS.
- Proper NVMe over Fabrics (NVMe-oF) setup page design. For example, when IPv6 is selected, suppress DHCP field since NVMeoF utilize IPv6's address autoconfiguration.
- Better NVMe-oF Discovery Service support. For example, when Discovery Service is used with the multiple targets discovered, BIOS will now boot to the first discovered and connectable NVMeoF target. Also, the list of discovered targets can be listed in BIOS F11 menu.
- Supported the M.2 Riser for "Redundant OS Control" feature like booting from the redundant OS on the M.2 SSD if there is such a riser on the system.
- Suppressed all PCIe VDM type 1 errors with DMTF vendor ID, so that the system does not crash because of improper PCIe VDM implemented PCIe devices.
* For examples: Fixed the system hang with Yellow Screen on Display (YSOD) since a PCIe switch in synthetic mode will generate VDM Type 1 error when no NVMe device is installed.
- This product release contains security updates. Once available, information will be accessible on the Dell Security Advisories and Notices website.
- See the release note for details about the updated ingredients in this version.
Version
1.5.6, 1.5.6
Release date
28 Aug 2023
Download Type
System BIOS
Category
BIOS
Importance
UrgentDell 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_TTCN0_WN64_1.5.6_02.EXE
File Size: 22.5 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:
2c5c1e49e63caf14cee0eb2476f1a9a3
SHA1:
3dd4aba2a518b9f161ce42610aeeea0689dc5616
SHA-256:
e61bdc2dfad6e6fa1da06f9e10917649af130340db27d8d40ec5044bdf36147e
File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_TTCN0_LN64_1.5.6_02.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:
af5c15e5f6d0febc8a59a8eb7c48f9c6
SHA1:
83fa493746b1c106dd22b0138bc21e310f9d16da
SHA-256:
c9ced75221c25a72c8d5b403456946bd47ee93ee40b8d630d43ab06ffd3d0d1d
File Format: A self-extracting file for use in 64-bit machines
File Name: BIOS_TTCN0_EFI_010506.efi
File Size: 14.04 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:
e08694f6b188e2c3a1abc0d7ae2bbed3
SHA1:
155e3a92434fa5590c730d2119071e0a45fe3748
SHA-256:
78b18b16db7c50a44264b067c47fc80d680fb752e1136530daeb9d9c16373396
File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: R660_R760_C6620_MX760c_Prec7960_BIOS_1.5.6_ReleaseNote.pdf
File Size: 187.91 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:
908b503cd631a3b3723356773eb6d3fc
SHA1:
297cf46638e0f738a3974548f58b8ba66e975bd4
SHA-256:
57b2b73a736b96e3610f2e57794778fb03ad480bac212aff9e104a461b82f457
File Format: Update Package for Red Hat Linux
File Name: BIOS_TTCN0_LN64_1.5.6_02.BIN
File Size: 17.59 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.
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:
2b311345e6cf09bd8874539d9f72fa1e
SHA1:
8e4c8dc7856cc8486460414df3a1dc6ffd640d0c
SHA-256:
1398673cd6fe2efc22271ed0b5fa07fefcf0ff0f10241371a2380c48af1e4de4
By downloading, you accept the terms of the Dell Software License Agreement.
Important Information
- When upgrading the BIOS from version 1.0.1 to 1.2.1 or a newer version, encountering the UEFI0074 message during the initial BIOS POST and in the Lifecycle (LC) log is a normal occurrence.
- Please use DUP file to update BIOS in OS or iDrac GUI if Intel Xeon CPU Max Series is installed on the system. The BIOS update cannot be performed using .efi utility due to a CPU limitation.
- Please use DUP file to update BIOS in OS or iDrac GUI if Intel Xeon CPU Max Series is installed on the system. The BIOS update cannot be performed using .efi utility due to a CPU limitation.
Supported Operating Systems
Not Applicable
Applies to
INFO,BIOS,LCK,FW1.5.6
PowerEdge BIOS
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.
-------------------------------------------------------------------------------
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.
--------------------------------------------------------------------------------
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.
--------------------------------------------------------------------------------
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.
---------------------------------------------
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
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.
-------------------------------------------------------------------------------
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.
--------------------------------------------------------------------------------
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.
--------------------------------------------------------------------------------
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.
---------------------------------------------
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
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting guideDrivers help and tutorials
For more downloads go to the Drivers and downloads. For help on using the information on this page, please visit Driver Help and Tutorials.