HP Dc7100 HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 60
ATA Cables, 4.2.1 SATA Data Cable - p4
UPC - 829160356877
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Serial and Parallel ATA Drive Guidelines and Features 4.2 ATA Cables 4.2.1 SATA Data Cable 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. 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. Pin Number Usage P1 Ground P2* A+ P3* A- P4 Ground P5** B- P6** B+ P7 Ground *P2 and P3 differential signal pair **P5 and P6 differential signal pair 4.2.2 SATA Power Cable Device Plug Ground Transmit data Transmit data Ground Receive data Receive data Ground Host Plug Ground Receive data Receive data Ground Transmit data Transmit data Ground Pin Usage Notes P1 V3.3 3.3 V power P2 V3.3 3.3 V power P3 V3.3 3.3 V power P4 Ground P5 Ground P6 Ground P7 V5 5 V power P8 V5 5 V power Pin Usage Notes P9 V5 5 V power P10 Ground P11 Reserved P12 Ground P13 V 12 12 V power P14 V12 12 V power P15 V12 12 V power 4-2 361288-003 Service Reference Guide, dc7100