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Introduction
Ultra ATA/33 introduc ed CRC (Cyclical Redundancy Check), a new feature of IDE that
provides data integrity and reliability. Ultra ATA/66 us es the same process. The CRC value
is calc ulated by both the host and the hard dr ive. After the host-request data is sent, the
host sends its CRC to the hard drive, and the hard drive compares it to its ow n CRC value.
If the hard drive reports errors to the host, then the host retries the command containing
the CRC error.
Ultra ATA/66 technology increases both performance and date integrity. How ever there
are basically fiv e requirements for your system to run in Ultra ATA/66 mode:
1.
The sy stem board must have a special Ultra ATA/66 detect circuit, s uch as
WinneX 3E mainboard.
2.
The s ystem BIOS must als o support Ultra ATA/66.
3.
The operating sy stem must be capable of DMA tr ansfers. Win95 (OSR2) and
Win98 are capable.
4.
An Ultra ATA/66 capable, 40-pin, 80-c onductor cable is required.
5.
Ultra ATA/66 compatible IDE device s uch as a hard drive or CD-ROM drive.
Manual for WinneX 3E
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