Toshiba A45 - Manual (Page 221)

221 If Something Goes Wrong
Resolving a hardware conflict
5.375 x 8.375 ver 3.1
6 Double-click the Secondary IDE Channel.
The Secondary IDE Channel Properties window appears.
Sample Secondary IDE Channel Properties window
7 Click the Advanced Settings tab.
8 Look at Device 0. The current transfer mode should be
Ultra DMA Mode 2. If it is not, select Ultra DMA Mode
2 from the pull-down menu and click OK.
Sound system problems
You do not hear any sound from the computer.
Adjust the volume control.
If you are using external headphones or speakers, check that
they are securely connected to your computer.