4
Serial and Parallel ATA Drive Guidelines
and Features
NOTE:
Serial ATA = SATA
Parallel ATA = PATA
HP only supports the use of SATA hard drives on these models of computer. No PATA drives are
supported.
SATA Hard Drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable
7/7
Number of pins in power cable
15
Maximum data cable length
39.37 in (100 cm)
Data interface voltage differential
400-700 mV
Drive voltages
3.3 V, 5 V, 12 V
Jumpers for configuring drive
N/A
Data transfer rate
3.0 Gb/s
SATA Hard Drive Cables
SATA Data Cable
Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5
Gb/s drives.
Current HP desktop products ship with SATA 3.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never
bend it tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive. As shown
in the table, each cable has 3 grounds, and 4 transmit/receive pins.
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
SATA Hard Drives
17
Summary of Contents for Compaq dx2290
Page 1: ...Service Reference Guide HP Compaq dx2290 Business PC ...
Page 4: ...iv About This Book ...
Page 8: ...viii ...