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 C6420 Version 1.4.9
Restart requiredAUTO INSTALLEDThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
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 contains new Intel Xeon Processor Scalable Family Processor Microcode to address CVE-2018-3639 and CVE-2018-3640.
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Fixes & Enhancements
Enhancements: - Updated the Intel Xeon Processor Scalable Family Processor Microcode to version 0x4D to address the following issues: - Enhancement to address security vulnerability CVE-2018-3639 (https://cve.mitre.org/cgibin/cvename.cgi?name=CVE-2018-3639). - Enhancement to address security vulnerability CVE-2018-3640 (https://cve.mitre.org/cgibin/cvename.cgi?name=CVE-2018-3640).
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.
File Format:A self-extracting file for use in 64-bit machines
File Name:C6420-010409.efi
File Size:17.98 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.
File Format:An archive of PDF files to provide help and procedural information to the customers
File Name:C6420_BIOS.1.4.9_RN.pdf
File Size:273.25 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.
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.
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
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.