ATA/ATAPI (IDE) Standard Drive Cable
Connector
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
4
Reset
Ground
DD7
DD8
15
16
17
18
DD1
DD14
DD0
DD15
29
30
31
32
DMAK
Ground
INTRQ
IOCS16
5
6
7
8
DD6
DD9
DD5
DD10
19
20
21
22
Ground
(Key)
DMARQ
Ground
33
34
35
36
DA1
PDIAG (cable detect)
DA0
DA2
9
10
11
12
DD4
DD11
DD3
DD12
23
24
25
26
DIOW
Ground
DIOR
Ground
37
38
39
40
CS1FX
CS3FX
DASP
Ground
13
14
DD2
DD13
27
28
IORDY
CSEL
24-Pin Power
Connector
24
12
13
1
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
4
5
6
+3.3V
+3.3V
GND
+5V
GND
+5V
7
8
9
10
11
12
GND
POK
+5 Vaux
+12V
+12V
+3.3V
13
14
15
16
17
18
+3.3V
-12V
GND
PSON
GND
GND
19
20
21
22
23
24
GND
open
+5V
+5V
+5V
GND
ATA/ATAPI (IDE) Standard Drive Cable
63