Reference Guide - Hard Disk Drives  A Brief History of the Hard Disk Drive Construction and Operation of the Hard Disk Drive Hard Disk Operational Overview Hard Disk Platters and Media Hard Disk Read/Write Heads Hard Disk Head Sliders, Arms and Actuator Hard Disk Spindle Motor Hard Disk Connectors and Jumpers Power Connector Data Interface Connector IDE/ATA Configuration Jumpers SCSI Configuration Jumpers LED Connector Hard Disk Logic Board Hard Disk Cache and Cache Circuitry Hard Disk Form Factors Hard Disk Packaging and Mounting Hard Disk Geometry and Low-Level Data Structures Hard Disk Performance, Quality and Reliability Hard Disk BIOS and Capacity Factors Hard Disk Interfaces and Configuration Hard Disk Logical Structures and File Systems Author: Charles M. Kozierok  Hard Disk Connectors and Jumpers Several different connectors and jumpers are used to configure the hard disk and connect it to the rest of the system. The number and types of connectors on the hard disk depend on the data interface it uses to connect to the system, the manufacturer of the drive, and any special features that the drive may possess. Instructions for setting common jumpers are usually printed right on the drive; full instructions for all jumpers will be in the product's manual, or on the manufacturer's web site. Some of the connectors and jumper pins on a 3.5", 36 GB, 10,000 RPM SCSI Cheetah drive. Next: Power Connector

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