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,DSK PROG,BIOS,FLSH,M420,1.2.4,1.2.4

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 M420 BIOS 1.2.4
To view all drivers for your PowerEdge M420, go to Drivers and downloads.
Recommended
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M420_BIOS_RCRMR_WN32_1.2.4.EXE | 7.85 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 32-Bit
File Name: M420_BIOS_RCRMR_WN32_1.2.4.EXE
File Size: 7.85 MB
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:
783933a23fd083152ddf70d2c504de1a
SHA1:
08aed7623ec022f28e8a4299eb6911ba0093fa97
SHA-256:
Not available

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

Fixes & Enhancements

* Updated Authenticated Code Module (ACM)
* Updated memory reference code
* Updated processor reference code
* Updated chipset reference code
* Updated management engine firmware
* Enhanced mixed-stepping processors support
* Enhanced GPU power support
* Optimized System Profile Dense Memory mode support
* Updated the iDRAC UEFI driver
* Added ACPI5.0 error type structure support
* Added UEFI HII browser enhancements
* Updated memory POR speed support
* Updated Intel Xeon processor E5-2600 product family microcode for C1 stepping to 00000616
* Updated Intel Xeon processor E5-2600 product family microcode for C2 stepping to 0000070B
* Added IOAT feature
* Improved Direct IO support
* Improved SRIOV support
* Disabled DDR opportunistic self-refresh feature for the Max Performance mode
* Added NUMA IO support
* Added ACPI consistent device naming support for add-in cards
* Added CPLD firmware update capability for Lifecycle Controller
Read More

Version

1.2.4, 1.2.4

Release date

27 Jun 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.

File Format: A GnuPG file which contains a cryptographic signature
File Name: M420_BIOS_RCRMR_LN32_1.2.4.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:
1ed7c84db17ab1a4ea802cf60e3b79f8
SHA1:
685b80017d5a611c7f3ce8e63f1899cc9c739a3c
SHA-256:
Not available

File Format: A self-extracting file for use in 64-bit machines
File Name: M420-010204C.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:
dbbaf4d6630da95143d75dd0bad1b498
SHA1:
395f691072049d2f44e36065670bdda13ac189bb
SHA-256:
Not available

File Format: Flash BIOS executable
File Name: M420-010204C.exe
File Size: 2.97 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:
db461007b4bf0ab5ddb0f739c1bb0b3a
SHA1:
bbd7a10711affe2fcd6e92c8252ce9a57d9dff1b
SHA-256:
Not available

File Format: External release notes
File Name: M420-010204BIOS.txt
File Size: 5.62 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:
cd7a94a236bb53787c2444f6841cf180
SHA1:
ee537a3b96502b4ea20fd3821bddc9a508b9de3f
SHA-256:
Not available

File Format: Update Package for Red Hat Linux
File Name: M420_BIOS_RCRMR_LN32_1.2.4.BIN
File Size: 6.27 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:
1450fe099927c5f2a2d832f9e6d101c5
SHA1:
04febcae0fa1b6d0a26e4c807f393dbe1bc0f837
SHA-256:
Not available

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

Additional details

Show All | Hide All
2.1.803 Jun 2014
2.1.706 Mar 2014
2.0.2318 Dec 2013
2.0.2225 Nov 2013
1.6.623 Sep 2013
1.5.126 Mar 2013
1.4.618 Dec 2012
1.3.508 Oct 2012
1.0.122 May 2012
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" linkto 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 bythe 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.

Drivers help and tutorials