BIOS Update R0190X5
This BIOS Update fixes following issue :
Fan control: Always On at constant medium speed (Much More Silent)
1. Download Instructions
1. Download the file "PHBSYS-00965927-UN.exe", and save it to a download directory (ex. C:\Download).
1. Close all running applications.
2. Click Browse. Specify the directory C:\Download\.
3. Select the file PHBSYS-00965927-UN.exe. Click Open.
4. A Window will appear. Please follow the instructions on this window.
5. Click on the Update-button to start the BIOS-update
6. Wait while BIOS is being updated. PLEASE DO NOT INTERRUPT THE PROCESS!
7. Please shutdown the computer when the update is finished.
8. Turn on the computer.
3. How to check the BIOS version :
Turn on the computer.
2. Press F2 to enter BIOS Setup when Sony Logo appears
3. See "BIOS Version" item in main menu.
4. Please verify that the BIOS Version is R0190X5.
5. Press the F9 key to load default BIOS configuration. "Yes" is highlighted. Press Enter to confirm.
6. Press the F10 key to save changes and exit. "Yes" is highlighted. Press Enter to confirm.
7. After this your system will boot again and start up Windows.