Abit BP6 User Manual download pdf (Page 27)

Installing the Motherboard 2-15

User’s Manual

Figure 2-11. Photo of an

Ultra ATA/66 Conductor

IDE3 and IDE4: ATA 66/Connectors

The BP6 supports the Ultra ATA/66 (Also

known as Ultra DMA/66) specification. It

enhances existing Ultra ATA/33 technology

by increasing both performance and data

integrity. This new high-speed interface

doubles the Ultra ATA/33 burst data transfer

rate to 66.6 Mbytes/sec. The result is

maximum disc performance using the

current PCI local bus environment. Figure

2-10 shows you the different between the

Ultra ATA/33 and Ultra ATA/66 Conductor Cable.

Figure 2-10. The difference between Ultra ATA/33 and Ultra ATA/66 Conductor Cables

Figure 2-11 shows you a photo of an Ultra ATA/66

Conductor Cable. An Ultra ATA/66-capable cable is a

40-pin, 80-conductor cable with a black connector on

one end, a blue connector on the other end and a gray

connector in the middle. In addition, line 34 on the cable

should be notched or cut (this may be difficult to see).

Ultra ATA/66 is backwards compatible with all Ultra

ATA/33 systems, but it will be limited in its transfer

mode to the Ultra ATA/33 (Ultra DMA Mode 2 - 33

Mbytes/sec) or PIO Mode 4 (16.6 Mbytes/sec). Ultra

ATA/66 hard drives are 100 percent backward

compatible with both Ultra ATA/33 and DMA and with

existing ATA (IDE) hard drives, CD-ROM drives, and

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Abit BP6 User Manual Page 27