MSI 975X PLATINUM User Guide - Page 57

MS-7246 Mainboard ECP Mode Use DMA The ECP mode has to use the DMA channel, so choose the onboard parallel port with the ECP feature. After selecting it, the following message will appear: "ECP Mode Use DMA." At this time, the user can choose between DMA channel [3] or [1]. IDE Devices Configuration Press to enter the sub-menu and the following screen appears: IDE HDD Block Mode Block mode is also called block transfer, multiple commands, or multiple sector 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 read/ writes per sector the drive can support. Setting options: [Enabled], [Disabled]. PCI IDE BusMaster Set this option to [Enabled] to specify that the IDE controller on the PCI local bus has bus mastering capability. Settings options: [Disabled], [Enabled]. OnChip Primary PCI IDE The integrated peripheral controller contains an IDE interface with support for the IDE channel. Choose [Enabled] to activate the channel. Setting options: [Enabled], [Disabled]. IDE Primary Master/Slave PIO The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of the four IDE devices that the onboard IDE interface supports. Modes 0 through 4 provide successively increased performance. In [Auto] mode, the system automatically determines the best mode for each device. Setting options : [Auto], [Mode 0], [Mode 1], [Mode 2], [Mode 3], [Mode 4]. IDE Primary Master/Slave UDMA Ultra DMA/33 implementation is possible only if your IDE hard drive supports it and the operating environment includes a DMA driver (W indows 95 OSR2 or a third-party IDE bus master driver). If your hard drive and your system software both support Ultra DMA/33, Ultra DMA/66 and Ultra DMA/100, select Auto to enable BIOS support. Setting options: [Auto], [Disabled]. 3-14