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 T420 Version 2.5.1

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 T420 BIOS Version 2.5.1
Recommended

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Fixes & Enhancements

Fixes:
- Removed the unnecessary Serial Peripheral Interface (SPI) Opcodes.

Enhancements:
- Updated the Intel Xeon Processor Microcode to address CVE-2017-5715 (http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715).
- Updated the Intel Xeon Processor E5-2600 v2 Product Family Processor Microcode to version 0x42C.
- Updated the Intel Xeon Processor E5-2600 Product Family Processor (C-1 Stepping) Microcode to version 0x61C.
- Updated the Intel Xeon Processor E5-2600 Product Family Processor (C-2 Stepping) Microcode to version 0x713.
- CVE-2017-5753 and CVE-2017-5754 are addressed by Operating System & Hypervisor updates. For more information, visit http://www.dell.com/support/article/SLN308588.
Read More

Version

2.5.1, 2.5.1

Release date

07 Mar 2018

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: T420_BIOS_H2FG9_WN64_2.5.1.EXE
File Size: 12.61 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:
16e8ae1bf4a2dd8a55093bcc79ff2a4e
SHA1:
91007255de9830bb03b0e37a8313bb4ad02ebfec
SHA-256:
96026f33355445560c24613b03a69c09ffa6717cfb05c451905f8c8bafb40284

File Format: A GnuPG file which contains a cryptographic signature
File Name: T420_BIOS_H2FG9_LN_2.5.1.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:
cade076a6c59a24eba0f3d5bcb5f5990
SHA1:
a00c6eaa681970c3519aa8b4f65b23785d1708c3
SHA-256:
19fe6cb9077abfd29a85e97472679c208860698160a4b12461915f487f493f20

File Format: A self-extracting file for use in 64-bit machines
File Name: T420-020501C.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:
25b10a2f941b174da76b767464c64b13
SHA1:
d695b6bb05bbbdbc30c012c03d81bcc711dca5ef
SHA-256:
c14df00434a910c5e967e77a643b809941beb9b07bbb1c0181b722e8a79bdfc4

File Format: Flash BIOS executable
File Name: T420-020501C.exe
File Size: 3.21 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:
aae4ccb5390b013c4a154b30297b0821
SHA1:
a2b76f5ecbfa5758e92a13a0a1356e2acfaea5f5
SHA-256:
062a6659a4725d4bd29a0b2576fec93aefa76fad9d908a1a05b3565cd8a6f8e8

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: T420_BIOS_02_05_01_Release_Notes.pdf
File Size: 520.05 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:
04583d241c704330e08395e9e51d04b7
SHA1:
c94bda2b3d68173fd0cc984f6e2ff4a20d3bb03b
SHA-256:
14c85d05e954343306e909a3b95ea94a1414e8ea8bffd04789cd7edadf6d6acc

File Format: Update Package for MS Windows 32-Bit
File Name: T420_BIOS_H2FG9_WN32_2.5.1.EXE
File Size: 11.18 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:
e21293a42522ed95a3f2a0829eda8f51
SHA1:
11c5a75d8d6ea14f3737eda6173129e8981dc36b
SHA-256:
f0a3f508e9b6e09d71e4fb50f14a9908a04247a7c5bc08c122f70264f54663d7

File Format: Update Package for Red Hat Linux
File Name: T420_BIOS_H2FG9_LN_2.5.1.BIN
File Size: 60.64 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:
f5ab73ca5c74cfe45f321520af7b5a51
SHA1:
275277780352c18b0b29221384a6e66bf95d4f92
SHA-256:
a8fbf3db1d20893b44644708d4a90e96a00f1bdbd662ee4b764ae3084056502d

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

Additional details

Show All | Hide All
PowerEdge T420 BIOS
SWB,BIOS,12G,T420,Q1FY16
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?

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