HP DX2250 manual 100

ATA/ATAPI (IDE) Standard Drive Cable

Connector

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

24-Pin Power

Connector
24							13￿
12				1
Pin		Signal		Pin		Signal		Pin	Signal	Pin	Signal
1		+3.3V	7			GND		13	+3.3V	19	GND
2		+3.3V	8			POK		14	–12V	20	open
3		GND	9			+5 Vaux		15	GND	21	+5V
4		+5V	10			+12V		16	PSON	22	+5V
5		GND	11			+12V		17	GND	23	+5V
6		+5V	12			+3.3V		18	GND	24	GND

94 Appendix A Connector Pin Assignments ENWW