HP Dc7700 HP Compaq dc7700 Business Desktop PC Service Reference Guide, 1st Ed - Page 57

4 Serial and Parallel ATA Drive Guidelines and Features ✎ Serial ATA = SATA Parallel ATA = PATA HP only supports the use of SATA hard drives on these models of computer. The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model. 4.1 SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable Number of pins in power cable Maximum data cable length Data interface voltage differential Drive voltages Jumpers for configuring drive Data transfer rate 7/7 15 39.37 in (100 cm) 400-700 mV 3.3 V, 5V, 12 V N/A 3.0 Gb/s SATA connectors on the system board are color coded to make identification easier. SATA Identification Primary channel, device 0 Primary channel, device 1 Secondary channel, device 0 Secondary channel, device 1 Color Dark blue Light Blue White Orange Port SATA 0 SATA 2 SATA 1 SATA 3 Attachment Sequence 1 4 2 3 ✎ If there is an error on the application of the attach rules, a POST error message may be displayed. Service Reference Guide, dc7700 433612-001 4-1