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 T640 Version 2.4.8

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.
Resolved an issue where the Sanitize All NVDIMMs option is not displayed in the Persistent Memory section of the System BIOS page when an NVDIMM-N memory is installed on the system. For more information about specific items added and resolved in this BIOS version, see the Fixes and New and enhanced features sections.
Recommended

Check compatibility

Enter your Dell Service Tag or model

Want to look up your product? Enter a product identifier. Show me how

This driver is not compatible

This driver is not applicable for the selected product. Choose another product to re-enter your product details for this driver or visit the Product Support page to view all drivers for a different product.

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

Fixes & Enhancements

Fixes
- The Sanitize All NVDIMMs option is not displayed in the Persistent Memory section of the System BIOS page when an NVDIMM-N memory is installed on the system.

Enhancements
- None for this release.
Read More

Version

2.4.8, 2.4.8

Release date

03 Dec 2019

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: BIOS_71D9H_WN64_2.4.8.EXE
File Size: 27.17 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:
b2160458a2a7c5d3a9b94962b5254389
SHA1:
8f0e35e61570b8fa5b6d947b1d994ff9664399df
SHA-256:
ef3e7eb571d85e71241e60ad8ec2964911b0f142389251fd2d52ba4ddf7bf657

File Format: A GnuPG file which contains a cryptographic signature
File Name: BIOS_71D9H_LN_2.4.8.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:
4337808ee2d61f11920d5ba782feeeeb
SHA1:
ed497a511dc42c9464f8d6ef0965f80a68e8f1c8
SHA-256:
47da15423fc6b286cf40e33b7029fed691b29743cac0ffc673df25075052b548

File Format: A self-extracting file for use in 64-bit machines
File Name: T640-020408.efi
File Size: 19.13 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:
219eb16c9cc6a54c268b327d3b52fa3f
SHA1:
0a3e03b9576fbce1f42b5151e82042e546699fcc
SHA-256:
6a6c29ad8e9d5ecb552637f67d8e3b1c4d042429000d2ef6b9ea6fe3e5069307

File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: T640_BIOS.2.4.8_RN.pdf
File Size: 239.2 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:
95f79b5c883654387822247334b94636
SHA1:
1b07259381c58b25f0dddd49cb89e40fdf72b4a2
SHA-256:
bc9b959e396e5c05535883a24f4785b28f3ebb7439b14d070f16628d426f0b8a

File Format: Update Package for Red Hat Linux
File Name: BIOS_71D9H_LN_2.4.8.BIN
File Size: 28.51 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:
67ff776318321ec2402fa852569191d9
SHA1:
b6419651664ca4b4608a06c74729365af0ad7db0
SHA-256:
470188397b8e9f4ae75f68993dff4455a8d757c8a4b492ddef61e907b9db6c1b

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

Additional details

Show All | Hide All
When updating a BIOS version either under OS (by using an Update Package (DUP)) or under UEFI Shell (a .efi file), the system may take more time to complete the BIOS update process (in case of a system having 14 TB memory, it takes around 30 minutes to complete the BIOS update process under Windows Server 2016). There are two ways to work around this issue:
- Use an out-of-band BIOS update method--IDRAC GUI or RACADM CLI command.
- Physically reduce the memory capacity by removing a few DIMMs (and thus improve the speed of the BIOS update process), and then try again.
PowerEdge BIOS
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 guide

Drivers help and tutorials