Lesson 10 System Maintenance Core Hardware Fundamentals

Objectives Explain the importance of regular preventive maintenance. Identify common cleaning materials and procedures. Describe the appropriate disposal procedures for potentially hazardous components. Describe desktop removal and replacement procedures. Describe portable system removal and replacement procedures.

Preventive Maintenance Materials Lint-free cloths Foam swabs Cleaning solution Alcohol Soft brush Vacuum cleaner Compressed air Antistatic spray Screwdrivers, etc. IC puller Tweezers Flashlight and mirror

Excessive Dust

Components Requiring Preventive Maintenance Computer/system boards Power supply Hard disk drive Floppy disk drive CD-ROM/DVD drive Display monitor Keyboard Mouse/pointing device Impact printer Ink jet printer Laser printer

Daily Activities Back up user data Check for obstruction Back up network data

Weekly Activities Clean and dust Disk checks Update virus signatures Review error logs

Quarterly or Half-Yearly Activities External cleaning Internal cleaning Internal checks Mouse and keyboard maintenance Disk maintenance Peripheral tests Cable checks Antistatic treatment

Annual Activities Disk reformat  MFM, RLL and ESDI only! Clean floppy diskette drives Clean CD-ROM drives Voltage checks

Recyclable Materials Paper Packaging Toner cartridges Ink cartridges Batteries

Environmental Concerns Heat Humidity Ventilation Dust/smoke Line voltage concerns Magnetic fields Electrostatic discharge (ESD) Water/liquids Fire protection devices Device/component storage

Desktop Replaceable Modules Mouse Keyboard Monitor Power supply Expansion boards Hard disk drive Floppy disk drive Memory Processor Motherboard

Portable Replaceable Modules External peripherals AC adapter Disk modules Memory LCD panel System board