Dell Support Drivers & Downloads Driver File Formats

Driver Details

PineValley/Sunrise A07 BIOS.
For Windows 8 support.
Release Date 10/1/2012
Importance: Recommended
Version: PS-A07

The following formats are available for the file you have selected

File Format: Windows/DOS Download File Download File
File Name:


Description: This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from Windows XP, Windows 2000, NT, Windows 9X, Windows ME or a MS DOS environment.
Download Type: HTTP
File Size: 12MB

Previous Versions

No previous version available.


For Windows 8 support.

Level of Importance:Recommended

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).


Inspiron 660s
Vostro 270s (Late 2012)
Operating Systems

Applies to

  • Dell Inspiron 660s/Vostro 270s

Fixes & Enhancements

X28: 1. BITS026557 Prompt twice msg when boot up from ODD and w/o press any key. 2. Change Deep sleep mode to support both S4 and S5 for Win 8. 3. Change Secure Boot load default behavior to meet spec. 4. Forbidden user to change boot mode to legacy when Secure Boot is enabled by BBS/BBS64 tools. X29: 1. Change Deep sleep mode to support both S4 and S5 for Win 8. 2. Updated ePSA to 4220.10 3. Add PBK's workaround: SUT cannot enter S3 via power button after second time.

Installation instructions

Please execute PS-A07.EXE under DOS or Windows to update system BIOS. Do not remove adaptor or shutdown computer during update process. You need to restart your computer when the update is completed.            


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