HP Dc7900 Service Reference Guide: HP Compaq dc7900 Business PC - Page 86
Cable Connections
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Cable Connections System board connectors are color-coded to make it easier to find the proper connection. System Board Connections System Board Connector P1 P3 P10 P9 P11 P5 P24 P23 P6 P52 P124 P125 P150 P126 P151 Connector Name PWR PWRCPU FLOPPY CHFAN CH FAN2 PB/LED FRONT USB FRONT AUD SPRK COMB HLCK HSENSE MEDIA PAR BOOST Connector Color White White Black White Brown Black Yellow Black White Black Black White Black Black Black Description Power supply, 24-pin Power supply, 4-pin Diskette drive Front chassis fan Rear chassis fan Front power button/LED Front I/O USB cable Front I/O audio Internal speaker Serial port Hood lock solenoid Hood sensor Media card reader Flying parallel port header ReadyBoost module Power Supply Cable Connections Power Supply Connector ID P1 P3 P4 P5 P9 P10 P11 Description Main power CPU power 1st Hard drive, SATA0 2nd HDD 1st ODD or 2nd HDD if no ODD present, SATA1 2nd ODD 3rd ODD 74 Chapter 7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis