下载文件
文件格式： Microsoft Windows 32位格式中的戴尔更新包(DUP)设计为可以在Microsoft Windows 64位操作系统上运行。Microsoft Windows 64位格式中的戴尔更新包(DUP)仅可在Microsoft Windows 64位操作系统上运行。选择设备驱动程序更新时，请务必选择适合您的操作系统的更新。
文件名: M420_BIOS_RCRMR_WN32_1.2.4.EXE
文件大小: 7.85 MB
为确保下载的完整性，请验证校验和值。
MD5： 783933a23fd083152ddf70d2c504de1a
SHA1： 08aed7623ec022f28e8a4299eb6911ba0093fa97
文件格式： Red Hat Linux更新包的GnuPG签名可用于验证戴尔在相关Red Hat Linux更新包中的身份。
文件名: M420_BIOS_RCRMR_LN32_1.2.4.BIN.sign
文件大小: 194 Bytes
为确保下载的完整性，请验证校验和值。
MD5： 1ed7c84db17ab1a4ea802cf60e3b79f8
SHA1： 685b80017d5a611c7f3ce8e63f1899cc9c739a3c
文件格式： 此文件包含可以从EFI外壳或EFI引导管理器执行的压缩内容。将文件下载到可移动介质设备上的EFI分区。插入可移动介质，然后重新启动系统，并从EFI外壳或EFI引导管理器运行该程序。
文件名: M420-010204C.efi
文件大小: 8.08 MB
为确保下载的完整性，请验证校验和值。
MD5： dbbaf4d6630da95143d75dd0bad1b498
SHA1： 395f691072049d2f44e36065670bdda13ac189bb
文件格式： 此文件格式包含BIOS可执行文件。要更新系统，请下载文件并将其保存到桌面或硬盘，然后运行该可执行文件。要更新BIOS，您的系统必须连接交流电源并具有至少10 %的电池电量。
文件名: M420-010204C.exe
文件大小: 2.97 MB
为确保下载的完整性，请验证校验和值。
MD5： db461007b4bf0ab5ddb0f739c1bb0b3a
SHA1： bbd7a10711affe2fcd6e92c8252ce9a57d9dff1b
文件格式： 此文件格式包含纯文本，您可以采用标准文本编辑器进行查看。
文件名: M420-010204BIOS.txt
文件大小: 5.62 KB
为确保下载的完整性，请验证校验和值。
MD5： cd7a94a236bb53787c2444f6841cf180
SHA1： ee537a3b96502b4ea20fd3821bddc9a508b9de3f
文件格式： 适用于Linux 的戴 尔更新包是在 满足特定的标准系统环境下使用的独立应用程序。，然后应用更新。<br /><b>注意：</b>Linux的更新包是开源的。查看适用于Linux 的戴 尔更新包自述以了解 详情，了解详情。
文件名: M420_BIOS_RCRMR_LN32_1.2.4.BIN
文件大小: 6.27 MB
为确保下载的完整性，请验证校验和值。
MD5： 1450fe099927c5f2a2d832f9e6d101c5
SHA1： 04febcae0fa1b6d0a26e4c807f393dbe1bc0f837
补丁和增强功能
* 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
安装说明
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.
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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.
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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.
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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.
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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