Ah - sorry, it's the Alienware M15x

What model PC? 

Here is the Dell install instructions that are on the BIOS listing for the 530.  Substitute your PC model number and the instructions should be the same.

Dell Inspiron Desktop 530b/530Sb System BIOS << return to results Release Date: 2/16/2009 Version: 1.0.2 Download Type: BIOS File Format: Windows/DOS File Size: 628 KB Download Add To Download List Sign In to View My Saved Downloads   Description 1.0.2 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). Compatibility Systems Operating systems Inspiron Desktop 530 Inspiron Desktop 530S BIOS Fixes and Enhancements FAN control enhancement Installation Instructions Custom Instructions for 530b-102.EXE: Installation Instructions for the Universal (Windows/ DOS) format Download file to Desktop Use one of the methods below to flash the Bios. Run the BIOS update utility from Windows environment Run the BIOS update utility from DOS environment (Non-Windows users) Download file to Desktop The file 530b-102.EXE is using the Universal (Windows/ DOS) format and is designed to be directly executed from Windows environment. Click Download now. The File Download window appears. Click the Save button. The Save As window appears. Select Desktop using the drop-down menu to the right of Save in. Click the Save button. A progress meter moves as the download is completed. If necessary, click X in the upper right-hand corner of the Download Progress Window to close it upon completion. NOTE: Shut down all other applications prior to running the BIOS update utility. The update utility reboots your system in order to get the new BIOS loaded. Run the BIOS update utility from Windows environment Double click the Icon on your desktop labeled 530b-102.EXE. The Update BIOS window appears Click the Update button. The message Updating BIOS. Please DO NOT POWER OFF! appears. BIOS update will begin. After BIOS update complete, the WinFlash window appears to tell you "Update successful". Click Yes button. The system will restart and the BIOS Flash will be completed.

Hi fireberd - Thanks for the reply. Was hoping there was a windows installer but I'll try the DOS boot from CD.

rgds

OK.  Here is the Dell instructions for your specific BIOS upgrade:

Custom Instructions for M15xA09.iso:

1. Bootable Flash Drive = Unzip M15xA09.zip and execute f.bat in DOS.
2. Bootable CD = Create CD from the included iso image. Boot to CD, BIOS and EC will automatically update.

Hard Drive Installation (via WinZip) of DOS Utility for R293649.exe

Download

1.Click the location, e.g. Americas, from which you want to download the file.
2.When the File Download window appears, click Save this program to disk and click OK. The Save In window appears.
3.From the Save In drop-down menu, click to select Desktop and then click Save. The file will download to your desktop.
4.If a Download Complete window appears, click Close. A new icon appears on your desktop.

Install

1. Double-click the new icon on the desktop labeled R293649.exe.
2. The Self-Extractor window appears and prompts you to extract or unzip to C:\DELL\DRIVERS\R293649. If you did not print these instructions, write down this path. The WinZip Self-Extractor window appears.
3. Click OK.
4. If the Self-Extractor window is still open, close it.
5. Create a DOS boot disk. For more information, refer to Dell Knowledge Base Article TT1014475 – “What can I use for a boot disk with CD-ROM support?”
6. Insert the floppy disk into the floppy drive and reboot the computer.
7. At the A:/> prompt, type C: and then press the [ENTER] key.
8. Type C:\DELL\DRIVERS\R293649 and then press [ENTER].
9. Follow the on-screen instructions.

1. Bootable Flash Drive = Unzip M15xA09.zip and execute f.bat in DOS.
2. Bootable CD = Create CD from the included iso image. Boot to CD, BIOS and EC will automatically update.