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 OptiPlex 9020 AIO System BIOS
Restart requiredInstalledThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package provides the Dell System BIOS update and is supported on Dell OptiPlex 9020 AIO for Windows and DOS Operating Systems.
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Fixes & Enhancements
Fixes: 1. Fixed Ubuntu Linux Audio malfunction after S3 resume. 2. Fixed "Enable UEFI Network Stack" option can't load default via set CMOS jumper. 3. Fixed Can't change BIOS setting remotely,when BIOS set password by Grasslake. 4. Fixed After chang HDD Protection, the first time change BIOS attribute would fail by Grasslake. 5. Fixed CPU Will spike when Wake On Lan packet is sent to the system with Intel LOM while on. 6. Fixed Can not get a reserved IP address for PXE boot. 7. Fixed Cannot resume from S4 first time after set SSD password in legacy mode in BIOS setup menu. 8. Fixed Boot list should not show "windows boot manager" this option after exchange HDD. 9. Fixed NUM key still work during POST after locked keyboard via AMT remote control. 10.Fixed SUT hang on memory test in text-based ePSA when SUT on UEFI mode. 11.Fixed Enumerate boot order were incorrect on first time reboot by Grasslake. 12.Fixed There is AT-p option in IMSS when service Menu select No TLS option. 13.FixedSK hynix SH920 SSD run Remote wipe,SUT don't display remaining time and model name. 14.Fixed DNS IP Address is greyed-out after client address set as Static IP and Reboot SUT. 15.Fixed Lack of UEFI network stack help string information in BIOS menu. 16.Fixed Boot Sequence cannot auto defaults after load defaults with legacy mode. 17.Fixed system cannot wake from WLAN on S3 status. 18.Fixed Boot mode(legacy/UEFI) cannot be changed via BIOS boot menu. 19.Fixed system hang at black screen when enter S3 with specific config.
Enhancements: 1. Add RC1.6.2 SATA RX Equalization Optimization. 2. Update PXE OROM from v1.5.40 to v1.5.50. 3. Update ePSA from 4228.17(4228A11) to 4228.26(4228A19). 4. Update AMD VBIOS to 15.30.00.02.044492.AB293158. 5. Disabled ASPM L0s disable for Intel WLAN card because it does not support L0s. 6. Set Admin & System password minimum length to be 4 characters.
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.
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.
A00 BIOS does not support C2 stepping chipset that was cut in after A00 released. It is blocked to downgrade to A00 BIOS if the chipset is C2 stepping.
Download 1. Click "Download File", to download the file. 2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment 1. Browse to the location where you downloaded the file and double-click the new file. 2. Windows System will auto restart and update BIOS while system startup screen. 3. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment, if Legacy Boot mode (Non-Windows users) 1. Copy the downloaded file to a bootable DOS USB key. 2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt. 3. Run the file by typing copied file name where the executable is located. 4. DOS System will auto restart and update BIOS while system startup screen. 5. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment if UEFI Boot Mode (Non-Windows users) 1. Copy the downloaded file to a bootable DOS USB key. 2. Power on the system, then go to BIOS Setup by pressing F2 and go to "General > Boot Sequence > Boot List Option". 3. Change "UEFI" to "Legacy" of Boot List Option. 4. Click "Apply", "Exit" to save changes and reboot system. 5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt. 6. Run the file by typing copied file name where the executable is located. 7. After BIOS update finished, system will auto reboot . 8. Go to BIOS Setup by pressing F2 and go to "General > Boot Sequence > Boot List Option". 9. Change "Legacy" to "UEFI" Boot Option. 10. Click "Apply", "Exit" to save changes and reboot system.
-------------------------------------------------------------------------------- Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files. Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system. If you don't enable BitLocker on your system you can ignore it.
Reboot will be required
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting guide