EVGA nForce 123-YW-E175 - Manual (Page 20)

EVGA
Connecting IDE Hard Disk Drives
The IDE connector supports Ultra ATA 133/100/66 IDE hard disk drives.
1. Connect the blue connector (the cable end with a single connector) to the motherboard.
2. Connect the black connector (the cable with the two closely spaced black and gray connectors)
to the Ultra ATA master device.
3. Connect the gray connector to a slave device.
If you install two hard disk drives, you must configure the second drive as a slave device by setting
its jumper accordingly. Refer to the hard disk documentation for the jumper settings.
Note: 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 may be reduced to that of the slowest drive.
Connector Pin Signal Pin Signal
1 Reset IDE 2 GND
3 Host Data 7 4 Host Data 8
5 Host Data 6 6 Host Data 9
7 Host Data 5 8 Host Data 10
9 Host Data 4 10 Host Data 11
11 Host Data 3 12 Host Data 12
13 Host Data 2 14 Host Data 13
15 Host Data 1 16 Host Data 14
17 Host Data 0 18 Host Data 15
19 GND 20 —-
21 DRQ 1 22 GND
23 Host IOW 24 GND
25 Host IOR 26 GND
27 IOCHRDY 28 Host ALE
29 DACK 1 30 Ground
31 IRQ 15 32 NC
33 Address 1 34 Ground
35 Address 0 36 Address 2
37 Chip Select 0 38 Chip Select 1
39 Activity 40 GND
v
Pin Assignments