Biostar P4M900-M4 Bios Setup - Page 24

P4M900-M4 Primary/Secondary Master/Slave UDMA Ultra DMA function can be implemented if it is supported by the IDE hard drives in your system. As well, your operating environment requires a DMA driver (Windows 95 or OSR2may need a third party IDE bus master driver). If your hard drive and your system software both support Ultra DMA, select Auto to enable BIOS support. The Choices: Auto (default), Disabled. IDE HDD Block Mode Block mode is also called block transfer, multiple commands, or multiple sectors read / write. If your IDE hard drive supports block mode (most new drives do), select Enabled for automatic detection of the optimal number of block mode (most new drives do), select Enabled for automatic detection of the optimal number of block read / write per sector where the drive can support. The Choices: Enabled (default), Disabled. VIA OnChip PCI Device Highlight the "Press Enter" label next to the "VIA OnChip PCI Device" label and press the enter key will take you a submenu with the following options: „ Figure 5.2: VIA OnChip PCI Device Azalia HDA Controller This option allows you to control the onboard HD audio. The Choices: Auto (default), Disabled. 23