User Guide
Page 180
... the speaker volume at startup. To boot your computer and press the F11 key when the VAIO logo appears. Hiding the VAIO animation logo will hear the startup sound at the specified volume level. ✍ You can I cannot boot my computer from the USB floppy disk drive, you will also ...turn off the startup sound. To change the boot device. Your computer restarts...
... the speaker volume at startup. To boot your computer and press the F11 key when the VAIO logo appears. Hiding the VAIO animation logo will hear the startup sound at the specified volume level. ✍ You can I cannot boot my computer from the USB floppy disk drive, you will also ...turn off the startup sound. To change the boot device. Your computer restarts...