HP dx2420 Service Reference Guide: HP Compaq dx2420 Business PC - Page 4

SATA Data Cable ...17 SATA Power Cable ...17 PATA Device Information ...18 ATA SMART Drives ...18 Hard Drive Capacities ...18 5 Identifying the Chassis, Routine Care, and Disassembly Preparation Chassis Designation ...19 Microtower (MT) ...19 Electrostatic Discharge Information ...20 Generating Static ...20 Preventing Electrostatic Damage to Equipment 20 Personal Grounding Methods and Equipment 21 Grounding the Work Area 21 Recommended Materials and Equipment 21 Operating Guidelines ...22 Routine Care ...23 General Cleaning Safety Precautions 23 Cleaning the Computer Case 23 Cleaning the Keyboard ...23 Cleaning the Monitor ...24 Cleaning the Mouse ...24 Service Considerations ...24 Power Supply Fan ...24 Tools and Software Requirements 24 Screws ...25 Cables and Connectors ...25 Hard Drives ...25 Lithium Coin Cell Battery 26 6 Removal and Replacement Procedures Microtower (MT) Chassis Serial Number Location ...27 Preparation for Disassembly ...28 External Security Devices ...29 Cable Lock ...29 Padlock ...29 HP Business PC Security Lock 30 Computer Access Panel ...32 Front Bezel ...33 Removing Bezel Blanks ...34 Cable Management ...35 Cable Connections ...36 Memory ...37 iv