Download Files
File Format: 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.
File Name: OptiPlex_7440_1.5.8.exe
File size: 8.2 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 23df627484aae91a3b37c6a21acff49b
SHA1: d677011738361eec9a6ad6b6d8591b332dc63b14
SHA-256: b9f782a3a3d11bd34461836693577e29f83ac0b30707d40ab119d91f83cc08e2
Fixes & Enhancements
Fixes:
- Fixed system remotely execute storage secure format twice via Dell remote control.
- Fixed system encounter abnormal power cycle reset while setting System/ Administration password via Dell remote control.
Enhancements:
- Updated CPU microcode to 0x8A.
- Enhanced Memory Overwrite Request Control Lock.
- Modified BIOS recovery LED error code behaviors.
- Optimized Hyper Threading function with high performance CPU.
- Released unnecessary occupied memory while loading BIOS default.
Important Information
1. Intel Graphics Driver 4274 or greater version is needed to install from 1.1.4 BIOS to avoid screen blurred.
2. BIOS prior to 1.2.7 have not supported Windows Update. Please use the executable file to update BIOS instead.
3. For platform stability, BIOS is restricted to downgrade to 1.1.5 and previous BIOS, and be recovered from 1.2.7 and previous BIOS recovery file.
Supported Operating Systems
Installation instructions
BIOS Update Executable for Windows/DOS
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.
Perform the BIOS update from the BIOS Boot Menu, independent of operating system, if BIOS supported
1. Copy the downloaded file to a USB flash device. It does not need to be bootable.
2. Insert the USB flash device into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one time boot menu.
5. Select "BIOS Flash Update" in the "Other Options" section.
6. Click on the "..." button to browse the USB flash device to locate the downloaded file.
7. Select the file and click "Ok"
8. Confirm the Existing System BIOS Information and the BIOS Update Information are as expected.
9. Click "Begin Flash Update"
10. Reviewing the Warning message and click "Yes" to proceed with the update.
11. The system should restart and show a Flash Progress bar on the Dell logo screen as the BIOS update is being performed.
12. The system will restart once again when the Flash update is complete.
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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