HP Dc5750 HP Compaq dc5750 Business PC Service Reference Guide, 1st Edition - Page 147
ATA/ATAPI IDE Standard Drive Cable, Pin Power CMT and MT models, Connector, Signal
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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 24-Pin Power (CMT and MT models) Connector 24 13 Pin Signal 1 +3.3 V 2 +3.3 V 3 GND 4 +5 V 5 GND 6 +5 V 12 Pin Signal 7 GND 8 POK 9 +5 Vaux 10 +12 V 11 +12 V 12 +3.3 V 1 Pin Signal 13 +3.3 V 14 -12 V 15 GND 16 PSON 17 GND 18 GND Pin Signal 19 GND 20 open 21 +5 V 22 +5 V 23 +5 V 24 GND Service Reference Guide, dc5750 437963-001 A-5