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Installing and Replacing Desktop Board Components
47
Connecting the IDE Cable
The Intel
®
boxed desktop board package includes two IDE cables. Both are capable of connecting
two drives to the desktop board. The 40-contact cable supports the Ultra DMA-33 transfer
protocol. The 40-contact 80-conductor cable supports ATA-66 and ATA-100 transfer protocols
and is backward compatible with drives using slower IDE transfer protocols.
✏
NOTE
ATA-66/100 compatible cables are backward compatible with drives using slower IDE transfer
protocols. If an ATA-66/100 disk drive and a disk drive using any other IDE transfer protocol are
attached to the same cable, the maximum transfer rate between the drives can be reduced to that of
the slowest drive.
✏
NOTE
Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device. For
example, do not connect an ATA hard drive as a slave to an ATAPI CD-ROM drive.
For the cable to function correctly:
• Attach the cable end with the single connector (A), which is blue and labeled P1, to the
desktop board as shown in Figure 25.
• Attach the cable end with the two closely spaced connectors (B), which are gray and black and
are labeled P2 and P3, to the drives.
• If connecting only one IDE drive, be sure to connect the drive to the black connector (P3).
OM11159
A
B
Figure 25. Connecting the IDE Cable (the D815EEA2 Board Is Shown)