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.
BIOS Sustaining version R4040U3
File name: EP0000600102.exe
File size: 5.71 MB (5981064 bytes)
- To install BIOS Sustaining version R4040U3
- 5.71 MB
- 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