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 BIOS PowerEdge R820 Version 2.0.20

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.
PowerEdge R820 BIOS Version 2.0.20
To view all drivers for your PowerEdge R820, go to Drivers and downloads.
Recommended
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This is the latest Dell validated version of this driver

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R820_BIOS_NK8XK_WN64_2.0.20.EXE | 22.69 MB
This is a large file. Depending on your connection speed, it may take some time to download.

File Format: Update Package for MS Windows 64-Bit.
File Name: R820_BIOS_NK8XK_WN64_2.0.20.EXE
File Size: 22.69 MB
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:
f758b84622f222e3b38a177153fe59d7
SHA1:
63a23e313df8e6511db4d9b4fdd3ed5d2d19116a
SHA-256:
aa6cd4961a5fe9737f5d4e369b9d6b1c6210ffd3ea453ba332f6a86147481e1b

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

What's New
===========
* Added support for Intel Xeon E5-4600 V2 family of processors.
* Updated Intel Authenticated Code Module (ACM) to Rev 2.4.
* Added 1866MHz memory DIMM support for Intel Xeon E5-4600 V2 processor.
* Added 64 GB LRDIMM memory support for Intel Xeon E5-4600 V2 family of processors.
* Updated iDRAC HII configurator UEFI driver to v1.55.55.05.
* Improved the System Setup user interface.
* Updated BIOS Copyright as 2014 Dell Inc.

Fixes
======
* Corrected an issue where UEFI vMedia device failed to boot through iDRAC when all USB ports were disabled under the F2 BIOS setup.

Important Notes
================
Back-flashing to BIOS versions earlier than 02.00.20 is not allowed if Intel Xeon E5-4600 V2 family processors are installed.
Read More

Version

2.0.20, 2.0.20

Release date

03 Mar 2014

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.

File Format: A GnuPG file which contains a cryptographic signature
File Name: R820_BIOS_NK8XK_LN_2.0.20.BIN.sign
File Size: 189 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:
7bcd96c99a1a644044b452444dec8f76
SHA1:
6c67ab35693f33d27785ffb7f51a4ea385d23cd2
SHA-256:
0cfdc88da3163594607f615aa9b16f5b1decccdf23219d7a5ea8b8f2917adf85

File Format: A self-extracting file for use in 64-bit machines
File Name: R820-020020C.efi
File Size: 8.08 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:
c3f4d310904e2605340fc9d9c888cf9a
SHA1:
4d17324a98301bc521806c7780b0621c76c05922
SHA-256:
b5ce9d2c4f1c230459086a218af88f25b466b54b1ae73d243b1c2d54958015a7

File Format: Flash BIOS executable
File Name: R820-020020C.exe
File Size: 3.14 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS-executable file. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
a9c5c09c1d57049d44a06e670becf82c
SHA1:
b38288ec64f6aaa91a71100a2d0ca5fbcda4fc5a
SHA-256:
1169c15bdfd618fbac5880907a4356c4fe6859fbbe4e2ddf12671989c7642b7d

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: R820_BIOS_02_00_20_Release_Notes.pdf
File Size: 256.21 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:
43b6f01095749b3ae6db931691516eb0
SHA1:
ab3e1859c4404fbfe0d6d393bcc239af3bd6e6d4
SHA-256:
1f56e854272acf082dffc6545559678dcdef3cb7bf820bbe16a21cef6008d289

File Format: External release notes
File Name: R820_BIOS_02_00_20_Release_Notes.txt
File Size: 14.11 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
MD5:
6ac000884167085f705ee0630e999403
SHA1:
0485d473661b09f29df9cbf4bf898f6f7ab2bcee
SHA-256:
564c97a2471200e5888564f780929ab04a2e80cea8497081b348c9406a3b0e5e

File Format: Update Package for MS Windows 32-Bit
File Name: R820_BIOS_NK8XK_WN32_2.0.20.EXE
File Size: 14.8 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
Dell Update Packages (DUP) in Microsoft Windows 32bit format have been designed to run on Microsoft Windows 64bit Operating Systems. Dell Update Packages (DUP) in Microsoft Windows 64bit format will only run on Microsoft Windows 64bit Operating Systems. When selecting a device driver update be sure to select the one that is appropriate for your operating system.
To ensure the integrity of your download, please verify the checksum value.
MD5:
6719dfbe74f51a98941c85f8b55e4539
SHA1:
ed291622f9f44d267e0fa21f2c39dad1af6bec86
SHA-256:
ffb4b9f95df9c80e08af1cc7bfc42a6fe72175aa3e6c583ace518b18e1bd9f39

File Format: Update Package for Red Hat Linux
File Name: R820_BIOS_NK8XK_LN_2.0.20.BIN
File Size: 10.09 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:
85b96712b12ee4fa6e5a49668da735c9
SHA1:
7f656c1e4a02d84f78adbe0cb8d6b072a3fbc3ce
SHA-256:
35e67f93484e8909d1bdd66b19f2f52cf41a1a2d5c73cd122290f040fcd21ec8

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

Additional details

Show All | Hide All
2.7.020 Jan 2020
2.6.024 Sep 2019
2.5.028 Jun 2018
2.4.107 Mar 2018
2.3.207 Apr 2015
2.2.314 Oct 2014
1.7.206 Dec 2013
Server BIOS 12G
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

Reboot will be required

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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