Chapter 4 Overview of Preventive Maintenance Flashcards
What is Preventive Maintenance? 4.0.1.1
Preventive maintenance is the regular and systematic inspection, cleaning, and replacement of worn parts, materials, and systems.
What is the result of Preventive Maintenance? 4.0.1.1
Effective preventive maintenance reduces part, material, and system faults, and keeps hardware and software in good working condition.
How do you remove dust from a computer? 4.1.1.3
Remove the majority of the dust with a small brush and a piece of paper, use a combination of compressed air, a low-air-flow ESD vacuum cleaner, and a small lint-free cloth
What is the optimal operating temperature for a computer? 4.1.1.5
7 to 32 degs C or 45 to 90 degs F
What is the optimal humidity for a computer? 4.1.1.5
10 to 80%
What must you do BEFORE any troubleshooting begins on any computer? 4.2.1.1
BACK UP THE DATA
What are the 6 steps of troubleshooting?
4.2.1.2 to 4.2.1.7
1) identify the problem
2) theory of probable cause
3) Test the Theory to Determine Cause
4) Establish a Plan of Action to Resolve the Problem and Implement the Solution
5) Verify Full System Functionality and, If Applicable, Implement Preventive Measures
6) Document Findings, Actions, and Outcome
What maybe the cause of Storage Device Errors? 4.2.2.1
Problems are often related to loose or incorrect cable connections, incorrect drive and media formats, and incorrect jumper and BIOS settings
What maybe the cause of Motherboard and internal components? 4.2.2.1
incorrect or loose cables, failed components, incorrect drivers, and corrupted updates
What maybe the cause of Power Supply Problems? 4.2.2.1
caused by a faulty power supply, loose connections, and inadequate wattage
What maybe the cause of CPU and Memory? 4.2.2.1
caused by faulty installations, incorrect BIOS settings, inadequate cooling and ventilation, and compatibility issues
