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.

PowerEdge T420,BIOS

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.
PowerEdge T420,BIOS
Recommended

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Fixes & Enhancements

See Release Notes
Read More

Version

1.4.6, 1.4.6

Release date

18 Dec 2012

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.
Available formats View Important Information
File Format: Update Package for MS Windows 32-Bit
File Name: T420_BIOS_D5H82_WN32_1.4.6.EXE
File Size: 11.65 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:
5da199a5cf7cd50d646f54a83cbcd7e2
SHA1:
023602e0505c9e37e524b89bd6f63e82af18c4a6
SHA-256:
0c9ad2050deee90224a0cfa0e1dfc93696534c704aa84067c2ed1b9bacf05a37
File Format: A GnuPG file which contains a cryptographic signature
File Name: T420_BIOS_D5H82_LN32_1.4.6.BIN.sign
File Size: 194 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:
b4237ad842ad4677b2f21e899224f802
SHA1:
048aa668e51f6c4c1ea3ecc3ba431372411602de
SHA-256:
3933ab4d2f9f47e0f4cad2ed6000b83e36cb11f889353cc6d701aec2c299538c
File Format: A self-extracting file for use in 64-bit machines
File Name: T420-010406C.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:
fe345e35b696716ee439002f89968ccc
SHA1:
b3a3068ff166ec7c194f57d93f6f0167974ae14e
SHA-256:
3453973b27c47ffc51a5e888450cc71f5a66c3ab83c6b909bd3b4fece3eca9ee
File Format: Raw BIOS executable file - will NOT be repackaged regardless of Repackaging Options
File Name: T420-010406C.exe
File Size: 3.01 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:
0ed42d6b03594d7b0e8ff2ffcdaedaae
SHA1:
c5365de2c003d95223b81daf70bcd78f43be04a0
SHA-256:
0bcb190de6b4bbb2f2552f48b11c7c596f356d55672166899cce01a0d11172d8
File Format: External release notes
File Name: T420-010406BIOS.txt
File Size: 8.3 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:
15a3d4dc054b9e913057044dcd4ae970
SHA1:
74a107605d48d2a3348f5009aa56c94b56a70b18
SHA-256:
2907ebd890be8365dd9dcb24bc70ada3e886eb52c5bd214cbf39a5b36972d6a2
File Format: Update Package for Red Hat Linux
File Name: T420_BIOS_D5H82_LN32_1.4.6.BIN
File Size: 9.95 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:
e91226942660d78e6b8acc8f05f489bd
SHA1:
25c6a965ffb88711ec2b773a4cb7a60e7e8846bd
SHA-256:
c5bf1dc59ff668849ee56d0ace3eb46c20e5266287f174db94a42023a1ad6b16

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

Additional details

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None
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.

Reboot will be required

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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