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Driver Details

XPS 8500,VOSTRO 470 A09 BIOS for Windows 8
Release Date 10/12/2012
Importance: Optional
Version: A09

The following formats are available for the file you have selected

File Format: Non-Packaged Download File Download File
File Name:


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.
Download Type: HTTP
File Size: 7MB

Previous Versions

No previous version available.


XPS 8500,VOSTRO 470 A09 BIOS for Windows 8

Level of Importance:Optional

Dell recommends the customer review specifics about the update to determine if it applies to your system. The update contains changes that impact only certain configurations, or provides new features that may/may not apply to your environment.


Vostro 470 (Mid 2012)
XPS 8500 (Early 2012)
Operating Systems

Applies to

  • Dell XPS 8500 / Vostro 470

Fixes & Enhancements

1. Fix that BIOS will show no boot device when booting into Windows 8 without keyboard attached. 2. Update ePSA to 4220.10. 3. Fix M117N graphics card can't enable secure boot and UEFI boot menu show half logo in screen. 4. Fix RTC wakeup function will fail after AC lose. 5. Fix Some PCIE1X cards can't be detected 6. Update IvyBridge UEFI video BIOS to 7. Update SandyBridge UEFI video BIOS to

Installation instructions

1. Boot into Windows.
2. Copy A09.EXE onto your desktop.
3. Execute A09.EXE by double click it.
4. Click Update when BIOS Update Program dialogbox pop up.
5. Make sure you don't interrupt the update process.
6. Do not turn off power or disconnect AC power source before update complete.
7. Press Yes to confirm the BIOS version you want to update and to start BIOS Update process.
8. Press Yes and then system will restart after BIOS update complete.            


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