CHS 2 - PC Maintenance

PC MaintenanceThe practice of keeping computers in a good state of repair.

4 Steps of PC Maintenance

1. PC Hardware Cleaning2. PC Anti-Virus Protection3. Safety Precaution4. Eliminating Hazard

1. PC Hardware Cleaning

To make your computer free of dirt, marks, or mess, especially by washing, wiping, or brushing.

Steps in PC Hardware Cleaning

1. Gather the tools and cleaning supplies needed• Screwdriver• Paint Brush• Spray cleaner designed for external computer

parts• Vacuum designed for electronics• Denatured alcohol• Cotton swabs• Clean dry lint-free cloths• Air compressor

2. Shut down and unplug your computer

3. Disconnect the LAN cable and all peripherals, such as monitors, scanners, printers, keyboards, mice and speakers.

4. Move to a suitable work area. If you haven't cleaned your computer in a while, a suitable work area is suggested. While you can clean your computer where it sits, it is not recommended. The job can be very messy and you'll want to work somewhere where you can adequately ventilate dust.

5. Open your computer. - Make sure you unplug the computer and

remove all peripherals- Remove screws using appropriate screwdriver

6. Prepare to clean. - Unplug the PC and remove peripherals

- Cables, keyboard, mouse and power cord- Wear a dust mask if necessary- Discharge by touching the metal frame of PC

7. Begin Dusting. - A lot of dust can be raised; try not to breathe it. - If the PC is very dusty, take it out of doors.

8. Make sure the heatsink fan is clean. The heat sink sits over the processor, and it is a collection of metal ridges that stick up away from the motherboard. If this fan does not function properly, the processor will overheat, resulting in degraded performance or permanent damage.

9. Look around the entire inside and outside for any dust you may have missed. Once you are sure it is cleaned thoroughly, carefully replace the sides. Do not try to force them into place.

10. Clean up your work space. - It is necessary to clean the work space after

cleaning your PC- Apply 5S-Japanese way of Housekeeping

Steps in PC Hardware Cleaning1. Gather the tools and cleaning supplies needed2. Shut down and unplug your computer3. Disconnect the LAN cable and all peripherals, such as

monitors, scanners, printers, keyboards, mice and speakers.

4. Move to a suitable work area5. Open your computer6. Prepare to clean.7. Begin dusting8. Make sure the heatsink fan is clean9. Look around the entire inside and outside for any dust

you may have missed10. Clean up your work space11. Close your computer.

Application

Cleaning a Monitor• Use smooth and

clean dry lint-free cloths on screen

• Do not use regular glass cleaner

• Use glass cleaner designed for monitors

• Do not spray while monitor is turned on

Cleaning a Keyboard

• Turn off the PC before cleaning keyboard• Turn keyboard upside-down and shake gently

to remove loose particles• Get between the cracks with a cotton swab or

a bit of folded paper towel• Clean keys with a cloth dampened with spray

cleaner designed for PCs• Use paint brush to clean the edges

Cleaning a Mouse1. Remove panel on

the bottom2. Remove the ball3. Clean inside with

alcohol and cotton swab

4. Clean ball with soap and water

5. Use lint cloth in wiping out dirt/dust

Cleaning Circuit Boards• Use soft bristles paint brush to remove dust

that has caked up in areas such as the fans, power supply, intake vents and between RAM modules.

• Use alcohol if liquid is necessary• Put thermal paste if necessary• You may use water but make sure to dry it

quickly and thoroughly.• Use air blow or soft towel for quick drying

Thermal Paste

Known as thermal grease, a thermal compound, is a substance used to promote better heat conduction between two surfaces and commonly used between a microprocessor and a heatsink .

Watch video for the steps of applying thermal paste.

2. Anti-Virus Protection

Anti- Virus ProtectionAn act of protecting your Pc through the use of Anti-virus software.

Anti-Virus software is a program or set of programs that are designed to prevent, search for, detect, and remove software viruses, and other malicious software like worms, trojans, adware, and more.Examples: Avast, Kaspersky, Bitdefender,

Norton, Avira

Basic Functions of Anti-Virus• Scan specific files or directories for any malware or

known malicious patterns.• Allow you to schedule scans to automatically run.• Allow you to initiate a scan of a specific file or of your

computer, or of a CD or flash drive at any time.• Remove any malicious code detected –sometimes you

will be notified of an infection and asked if you want to clean the file, other programs will automatically do this behind the scenes.

• Show the ‘health’ of your computer.

3. Safety Precaution

An action taken in advance to protect against possible danger, failure, or injury.

General Safety Guidelines• All users of the laboratory are to follow the directions of

Academic/Laboratory Technician staff member.• Food or drink is not permitted at any time in the laboratory. • Students should not attempt to repair, open, tamper or

interfere with any of the computer, printing, cabling, air conditioning or other equipment in the laboratory.

• Students should be aware of office ergonomic guidelines for correct posture when using computer equipment.

• Please treat fellow users of the laboratory, and all equipment within the laboratory, with the appropriate level of care and respect.

4. Eliminating Hazard• To remove the hazard completely.

Steps on Eliminating Hazard• Avoid twisting body.• Bend knees if it is needed.• Use a ladder when reaching for hard-to-reach

materials or object.• Ask for help from someone if the task cannot

be done by one person.• SAFETY FIRST

4 Steps of PC Maintenance

1. PC Hardware Cleaning2. PC Anti-Virus Protection3. Safety Precaution4. Eliminating Hazard

Activity: PC Cleaning

1. Follow the steps in PC hardware Cleaning (11 points)

2. Proper assembling and disassembling of peripherals (4 points)

3. Observe OHS and 5S (5 points)