HP dx5150 4.2 PATA Hard Drive Information, 4.1.2 SATA Power Cable, Pin, Pin, PATA, Usage, Usage, Notes, Usage, Notes, Host Plug, Pin Number, Device Plug, Characteristic

Serial and Parallel ATA Drive Guidelines and Features

Pin Number	Usage	Device Plug	Host Plug
P1	Ground	Ground	Ground
P2*	A+	Transmit data	Receive data
P3*	A-	Transmit data	Receive data
P4	Ground	Ground	Ground
P5**	B-	Receive data	Transmit data
P6**	B+	Receive data	Transmit data
P7	Ground	Ground	Ground

*P2 and P3 differential signal pair **P5 and P6 differential signal pair

4.1.2 SATA Power Cable

Pin	Usage	Notes	Pin	Usage	Notes
P1	V3.3	3.3 V power	P9	V5	5 V power
P2	V3.3	3.3 V power	P10	Ground
P3	V3.3	3.3 V power	P11	Reserved
P4	Ground		P12	Ground
P5	Ground		P13	V 12	12 V power
P6	Ground		P14	V12	12 V power
P7	V5	5 V power	P15	V12	12 V power
P8	V5	5 V power

4.2 PATA Hard Drive Information

Characteristic	PATA
Number of pins/conductors in data cable	40/80
Number of pins in power cable	4
Maximum data cable length	18 in (45.7 cm)
Data interface voltage	5 V
Drive voltages	5 V, 12 V
Jumpers for configuring drive	Required
Data transfer rate	up to 1.0 Gb/s

4–2 361685-001 Service Reference Guide, dx5150