Service Reference Guide, dc7100 361288-003 4ā1
Serial and Parallel ATA Drive Guidelines and Features
4
Serial and Parallel ATA Drive Guidelines and
Features
ā
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
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