Filter
Top Products
Motherboard Description SY-6IWM
12
1-7.2 IDE Support
The motherboard has two independent bus-mastering PCI IDE interfaces. These
interfaces support PIO Mode3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), and
Ultra DMA/66 synchronous-DMA mode transfers. The BIOS supports logical
block addressing (LBA) and extended cylinder head sector (ECHS) translation
modes. The BIOS automatically detects the IDE device transfer rate and translation
mode.
Programmed I/O operations usually require a substantial amount of processor
bandwidth. However, in multitasking operating systems, the bandwidth freed by
bus mastering IDE can be devoted to other tasks while disk transfers are occurring.
The motherboard also supports laser servo (LS-120) drives. LS-120 technology
allows the user to perform read/write operations to LS-120 (120MB) and
conventional 1.44MB and 720KB diskettes. An optical servo system is used to
precisely position a dual-gap head to access the diskett’ s 2,490 tracks per inch (tpi)
containing up to 120 MB of data storage. A conventional diskette uses 135 tpi for
1.44 MB of data storage.
LS-120 drivers are ATAPI-compatible and connect to the motherboard’ s IDE
interface. (LS-120 drives are also available with SCJSI and parallel port
interfaces.) Some versions of Windows 95 and Windows NT operating systems
recognize the LS-120 drive as a bootable device in both 120 MB and 1.44 MB
mode.
Connection of an LS-120 drive and a standard 3.5-inch diskette drive is allowed.
The LS-120 drive can be configured as a boot device if selected as Drive A in the
BIOS setup program.
¿
Note
If you connect at LS-120 drive to an IDE connector and configure it as the :boot:
drive and configure a standard 3.5-inch diskette drive as a “B” drive, the standard
diskette drive is not seen by the operating system. When the LS-120 drive is
configured as the “boot: device, the system will recognize it as both the A and B
drive