Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

Before updating the BIOS, please suspend BitLocker encryption. If it is not enabled on your system, you can skip this step. Learn more

Dell EMC Server BIOS PowerEdge T20 Version A18

Restart required
The Intel Management Engine (ME) is updated to, and also updated both the Intel Xeon Processor E3-1200 v3 Product Family Processor and the Desktop 4th Generation Intel Core Processor Family Processor Microcode to version 0x25.

Get the latest driver

Please enter your product details to view the latest driver information for your system.

This driver is not compatible

This driver is up-to-date

The driver information is up-to-date. To view all drivers for your PowerEdge T20, go to Drivers & Downloads.

Fixes & Enhancements

- Updated the CPU microcode to address security advisory Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 and CVE-2018-3640)
- Updated the Intel ME Firmware to address security advisories INTEL-SA-00112 (CVE-2018-3628 CVE-2018-3629 CVE-2018-3632) and INTEL-SA-00118(CVE-2018-3627)

- Not applicable


Version A18, A18



Release date

09 Jul 2018

Last Updated

09 Jul 2018


Available formats

File Format: Windows/DOS
File Name: PET20A18.exe
Download Type: HTTP
File Size: 9.29 MB
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.
File Format: Rel-Notes-PDF
File Name: T20_BIOS_A18_RN.pdf
Download Type: HTTP
File Size: 379.75 KB
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.

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

Precision T1700 System BIOS
The file PET20A18.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.
Run the BIOS update utility from Windows environment
1. Double click the Icon on your desktop labeled PET20A18.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 PET20A18.exe to a bootable USB key.
2. Boot from the USB key to the DOS prompt.
3. Run the file by typing Y:\PET20A18.exe (where Y is the drive letter where the executable is located).

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.
None for this release

Drivers help and tutorials