Service Reference Guide, dc5100
376220-001
4–1
Serial and Parallel ATA Drive Guidelines and Features
4
Serial and Parallel ATA Drive Guidelines and
Features
✎
Serial ATA = SATA
Parallel ATA = PATA
HP does not support the use of PATA (IDE) hard drives when SATA hard drives are installed on
the computer.
4.1 SATA and PATA Device Information
SATA connectors on the system board are color coded to make identification easier.
Characteristic
SATA
PATA
Number of pins/conductors in data cable
7/7
40/80
Number of pins in power cable
15
4
Maximum data cable length
39.37 in (100 cm)
18 in (45.7 cm)
Data interface voltage differential
600 mV
5 V
Drive motor voltages
3.3 V, 12 V
5 V, 12 V
Jumpers for configuring drive
N/A
Required
Data transfer rate
150 MB/s
up to 100 MB/s
SATA Identification
Color
Primary channel, device 0
Dark blue
Primary channel, device 1
Light Blue
Secondary channel, device 0
White
Secondary channel, device 1
Orange