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Driver Details

Dell Dell XPS L511Z System BIOS, A06
Dell XPS L511Z System BIOS
Release Date 10/13/2011
Importance: Recommended
Version: A06

The following formats are available for the file you have selected

File Format: Hard-Drive Download File Download File
File Name:


Description: This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
Download Type: HTTP
File Size: 3MB

Previous Versions

No previous version available.


Dell XPS L511Z System BIOS

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).

Important Information

(1) After upgrading to A06, never downgrade Bios to A05 or older version, otherwise system BIOS will crash and can't boot again. (2) Upgrading to A06 will cause Setup Menu load-default


XPS 15Z (L511Z, Mid 2011)
Operating Systems

Applies to

  • Dell XPS L511Z System BIOS

Fixes & Enhancements

*Important Warning: 1. After upgrading to A06, never downgrade Bios to A05 or older version, otherwise system BIOS will crash and can't boot again. 2. Upgrading to A06 will cause Setup Menu load-default *Issues fixed or function upgrade: 1. Intel Rapid Start Technology (iRST) is enabled for systems which have: (1)SSD Storage (2)8G iRST partition 2. Fix DP audio & Array MIC will loss function after resume from iFFS mode 3. Fix Boot menu disorder and F2/F12 no function to Setup/Boot Option. 4. Fix a battery will pop up warning message symptom. 5. Removed a patch to prevent SUT hang during POST: XHCI HandOff code change for Win 8

Installation instructions

Hard Drive Installation (via WinZip) with Setup.exe File for R314767.EXE


1.Click Download Now, to download the file.
2.When the File Download window appears, click Save (Windows XP 
users will click Save) this program to disk and click OK.  The Save In: 
window appears. 
3.From the Save In: field, click the down arrow then click to 
select Desktop and click Save.  The file will download to your desktop.
4.If the Download Complete window appears, click Close.  The file 
icon appears on your desktop.


1.Double-click the new icon on the desktop labeled R314767.EXE.
2.The Self-Extracting window appears and prompts you to extract or 
unzip to C:\DELL\DRIVERS\R314767. Write down this path so the executable (I.e. 
Setup.exe) file can be found later.
3.The Self-Extractor window appears.
4.Click OK.
5.After completing the file extraction, if the Self-Extractor 
window is still open, close it.
6.Click the Start button and then click Run.
7.Type C:\DELL\DRIVERS\R314767 in the Open textbox and then click OK.
8.Follow the on-screen installation instructions.            


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