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 C6420 Version 1.2.11

Restart required AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This release provides continued code optimization to improve stability & performance. This release contains BIOS firmware version 1.2.11 for Dell EMC Server PowerEdge C6420.
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Fixes & Enhancements

Fixes
- Whenever a fabric CPU is populated, skipped the uncore frequency of both CPUs which is locked at the maximum frequency. This improved the performance test result of Intel HPL (Highly Parallel Linpack) benchmark under the mixed CPU configuration such as:
- CPU0 - Intel Xeon Gold 6148
- CPU1 - Intel Xeon Gold 6148F (fabric)
- Mitigated the security vulnerability CVE-2017-5706 (http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5706 ) details anticipated to be published November 20, 2017.
- Mitigated the security vulnerability CVE-2017-5709 (http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5709 ) details anticipated to be published November 20, 2017.

Enhancements
- Updated the Intel Trusted Execution Technology (Intel TXT) BIOS Authenticated Code Module (ACM) to version 1.3.3.
- Updated the Intel Processor and Memory Reference Code to PLR2.
- Updated the Intel Xeon Processor Scalable Family Processor Microcode to version 0x2C.
Read More

Version

1.2.11, 1.2.11

Release date

20 Nov 2017

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_9CCND_WN64_1.2.11.EXE
File Size: 26.11 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:
3f77290538290bf3d10121e484b29bd4
SHA1:
aa8276d564fbb7ae16311e70de7171a4919950af
SHA-256:
b33305079a4903802a6fd171d4da40ce45be615f09592ac23b257988bad847d1

File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_9CCND_LN_1.2.11.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:
802fa4a02c4f867367428e21998c4640
SHA1:
41bb3251277ffc649b86cf3919f3a392da7fe88b
SHA-256:
fd46dd50c7c3999eb6893a25b023ee02472acc82d36184f8ac3bee4292fd2abe

File Format: A self-extracting file for use in 64-bit machines
File Name: C6420-010211.efi
File Size: 17.91 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:
0e7a3032e9f0a100dac7b23c9e269397
SHA1:
3b6cf22a6614d7080cc81389d2550dafcb979de3
SHA-256:
6b8f26562401733ce87cfbad51e6e43dade0a9fcade6b1e62a245c5059c89926

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: C6420_BIOS.1.2.11.pdf
File Size: 309.65 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:
12aab75439b16ac9b774d239f11c8b37
SHA1:
40bccc99fed62f61007f30635b3f26038f7d7adc
SHA-256:
01c98926c191c81603f306743aba055235b96a6c30c3047fd811f0be8cb6df45

File Format: Update Package for Red Hat Linux
File Name: BIOS_9CCND_LN_1.2.11.BIN
File Size: 26.52 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:
247a28bddd0994b5ceacbe87451d808c
SHA1:
f602d87f88507ba4cbf9f48e9436ce324a77ddce
SHA-256:
cc2b75856cffae309712ae9c9fc3e63e782fc338b1e0cf2abbab146f465a960f

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

Additional details

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If the BIOS in system has not been updated for over a year, it is high suggested to update the BIOS to the latest version.
PowerEdge BIOS
Dell Update Package Instructions for DRMK
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
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 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 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 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 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 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 and usage guide.

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