Applicable Models

This information is for the following models:
  • VGN-P35TK
  • VGN-P33TK
  • VGN-P35MK
  • VGN-P35GK
  • VGN-P33GK

About this download

This program will update BIOS version to R4040U3 and will resolve the following symptoms:

- The CPU Performance setting has been optimized.
- For XP downgrade pre-installed model, HDD recovery does not run.

Available Downloads:

BIOS Sustaining version R4040U3

File name: EP0000600102.exe

File size: 5.71 MB (5981064 bytes)

File Info

File Name

  • To install BIOS Sustaining version R4040U3

File Version

  • R4040U3

File Size

  • 5.71 MB

Release Date

  • 2010-01-04

System Requirements

  • Windows 7 32bit
  • Windows XP



1. Download the file to a temporary or download directory (Please note this directory for reference later).
2. Go to the directory where the file was downloaded and double-click EP0000600102.exe.
3. Follow the instructions displayed in the installation wizard.
4. After installation is completed, please restart the computer

To check if installation is successful:

1. Open VAIO Control Center -> System Information
2. Confirm BIOS Version is R4040U3