Manual for WinneX 5
6
Ultra ATA/33 introduced CRC (Cyclical Redundancy Check), a new feature of IDE
that provides data integrity and reliability. Ultra ATA/66 uses the same process. The
CRC value is calculated by both the host and the hard drive. After the host-request
data is sent, the host sends its CRC to the hard drive, and the hard drive compares
it to its own 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. However
there are basically five requirements for your system to run in Ultra ATA/66 mode:
1. The system board must contain a special Ultra ATA/66 detect circuit, such as
WinneX 5 mainboard.
2. The system BIOS must also support Ultra ATA/66.
3. The operating system must be capable of DMA transfers. W in95 (OSR2) and
W in98 are capable.
4. A capable Ultra ATA/66 , 40-pin, 80-conductor cable is required.
5. Ultra ATA/66 compatible IDE device such as a hard drive or CD-ROM drive.
Introduction
