HP Dc7700 HP Compaq dc7700 Business Desktop PC Service Reference Guide, 1st Ed - Page 197

ATA/ATAPI (IDE) Standard Drive Cable Connector Connector Pin Assignments Pin Signal 1 Reset 2 Ground 3 DD7 4 DD8 5 DD6 6 DD9 7 DD5 8 DD10 9 DD4 10 DD11 11 DD3 12 DD12 13 DD2 14 DD13 Pin Signal 15 DD1 16 DD14 17 DD0 18 DD15 19 Ground 20 (Key) 21 DMARQ 22 Ground 23 DIOW 24 Ground 25 DIOR 26 Ground 27 IORDY 28 CSEL Pin Signal 29 DMAK 30 Ground 31 INTRQ 32 IOCS16 33 DA1 34 PDIAG (cable detect) 35 DA0 36 DA2 37 CS1FX 38 CS3FX 39 DASP 40 Ground CD-ROM 50-Pin Connector Connector Pin Signal Pin Signal 1 Audio L-ch 14 DD12 2 Audio R-ch 15 DD3 3 Audio GND 16 DD13 4 GND 5 RESET- 17 DD2 18 DD14 6 DD8 7 DD7 8 DD9 9 DD6 10 DD10 19 DD1 20 DD15 21 DD0 22 DMARQ 23 GND 11 DD5 12 DD11 13 DD4 24 DIOR25 DIOW26 GND Pin Signal 27 IORDY 28 DMACK29 INTRQ 30 IOCS1631 DA1 32 PDIAG33 DAO 34 DA2 35 CS1FX36 CS3FX- 37 DASP38 +5V 39 +5V Pin Signal 40 +5V 41 +5V 42 +5V 43 GND 44 GND 45 GND 46 GND 47 CSEL 48 GND 49 Vendor-specific 50 Vendor-specific Service Reference Guide, dc7700 433612-001 A-5