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 T20 Version A20

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 T20 BIOS Version A20
Recommended

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Fixes & Enhancements

Fixes
- None for this release

Enhancements
- Enhancement to address the security vulnerabilities (Common Vulnerabilities and Exposures--CVE) such as CVE-2018-12126,
CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091.
- Updated the Intel Xeon Processor E3-1200 v3 Product Family Processor Microcode to version 0x27
- Updated the Desktop 4th Generation Intel Core Processor Family Processor Microcode to version 0x27
Read More

Version

A20, A20

Release date

06 Sep 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
File Format: CPG BIOS Executable for Windows/DOS
File Name: PET20A20.exe
File Size: 9.29 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. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
923de066ab20ee98d9d8434f07836239
SHA1:
85143f0826ed0d1734f62d1d8a79edeef41bc039
SHA-256:
3d14961681ec6ecd930f75c7b5426ac271bac735a2553b962baaf2e8f66a6ca8
File Format: An archive of PDF files to provide help and procedural information to the customers
File Name: T20_BIOS.A20_RN.pdf
File Size: 205.37 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:
263c30fbc7e693a0f0711d7c8644712a
SHA1:
9d63124c1032948f82497ab76fbe816f0b61de7d
SHA-256:
18a8ce7b2b53349a8df6c05d0df36c8327476a1de9d255d4215be70bb04b5297

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

Additional details

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Precision T1700 System BIOS
The file PET20A20.exe is using the Universal (Windows/ DOS) format and is designed to be directly executed from Windows environment.
1. Click Download now.The File Download window appears.
2. Click the Save button.The Save As window appears.
3. Select Desktop using the drop-down menu to the right of Save in.
4. Click the Save button.A progress meter moves as the download is completed.
5. If necessary, click X in the upper right-hand corner of the Download Progress Window to close it upon completion.

NOTE: Shut down all other applications prior to running the BIOS update utility. The update utility reboots your system in order to
get the new BIOS loaded.
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Run the BIOS update utility from Windows environment
1. Double click the Icon on your desktop labeled PET20A20.exe.The Dell BIOS Flash window appears
2. Click the Continue button.The message Pressing OK will close all applications, shut down Windows,
Flash the BIOS, then reboot. appears.
3. Click the OK button.The system will restart and the BIOS Flash will be completed.

Run the BIOS update utility from DOS environment (Non-Windows users)
NOTE: You will need to provide a bootable DOS diskette. This executable file does not create the DOS system files.

1. Copy the file PET20A20.exe to a bootable USB key.
2. Boot from the USB key to the DOS prompt.
3. Run the file by typing Y:\PET20A20.exe (where Y is the drive letter where the executable is located).

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Note: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you doesn't enable BitLocker on your system you can ignore it.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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