| These connectors are used for all IDE devices including Ultra/66 hard disks.
When connecting the IDE cables to the IDE connectors, maintain pin 1 orientation. In this illustration, pin 1 is highlighted on the left side. The connectors are also keyed, although some cables may not be. The primary IDE controller is located near the edge of the motherboard, and the secondary IDE controller is located near the DIMM sockets. |
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The motherboard provides two independent bus-mastering PCI IDE interfaces that support PIO Mode 3, Mode 4, Advanced Technology Attachment Packet Interface (ATAPI), and Ultra Advanced Technology Attachment (ATA) Interface (synchronous DMA mode transfer) devices.
The motherboard BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes.
The BIOS Setup Utility automatically detects the IDE device transfer rate and translation mode. This motherboard includes LS-120 support.
Normally, programmed I/O operations require a substantial amount of CPU bandwidth. In true multi-tasking operating systems, the CPU bandwidth, which is freed up by using bus-mastering IDE, can be used to complete other tasks while disk transfers occur. When used in conjunction with the appropriate driver, the IDE interface can operate as a PCI master capable of supporting Ultra ATA devices with transfer rates of up to 66 megabytes per second (MBps).
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