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Computer Repair & Maintenance. Ainsley Smith. Tel: 0161 953 5995 Ex 3374 Ainsley_smith@mancat.ac.uk. Dismantle & Assemble a PC Today you will :-. Prepare a log of available hardware Prepare a risk assessment Draw a diagram of how ports & cables are connected

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ainsley smith
Ainsley Smith

Tel: 0161 953 5995 Ex 3374

Ainsley_smith@mancat.ac.uk

dismantle assemble a pc today you will
Dismantle & Assemble a PCToday you will :-
  • Prepare a log of available hardware
  • Prepare a risk assessment
  • Draw a diagram of how ports & cables are connected
  • Assemble a pc from a range of available parts
  • Learn how to store and pack ICT equipment
  • Perform safety checks
  • Test for PC functionality
dismantle assemble a pc risk assessment safety factors
Dismantle & Assemble a PCRisk Assessment & Safety factors

Main Hazards ?

  • Electrical
    • Electrical shock or Burns - Students are not permitted to work alone in laboratories
    • Someone electrocuted and still attached to a supply is still `live'.
    • Current over 10mA passing through the body is painful; current in excess of 100mA passing through the body is lethal.
    • Death has been caused by as little as 40 Volts
    • Never dismantle the actual PSU in your PC. This unit contains potentially lethal mains voltages, even when it is disconnected from the supply. They are not user-repairable. If it fails, replace it with a new one.
dismantle assemble a pc risk assessment safety factors1
Dismantle & Assemble a PC Risk Assessment & Safety factors

In practical terms the following points should be noted: -

  • Do not attempt to modify or service electrical equipment unless it is disconnected from the supply
  • Fuses of the correct rating must be fitted to all electrical equipment
  • Electrical switches have a live side even in the switched off position
  • The outer cover of any mains cable must always be securely held by the cable grips on the plug.
dismantle assemble a pc risk assessment safety factors2
Dismantle & Assemble a PCRisk Assessment & Safety factors

Main Hazards ?

  • Electrical
  • ESD –
    • Wear an anti-static wristband
    • If the PC is grounded, touching its frame will ground you
    • The average person can carry up to 25,000 volts of static charge at any given time
    • CPUs and memory chips of any kind are highly vulnerable to ESD
    • you may soon start to notice random memory errors, blue screens
    • Try not to open up computers on thick carpets

Electrostatic Discharge

dismantle assemble a pc risk assessment safety factors3
Dismantle & Assemble a PCRisk Assessment & Safety factors

Main Hazards ?

  • Electrical
  • ESD – Electrostatic Discharge
  • Sharp Edges
    • Beware of sharp edges inside PC Cases and the small solder pins on boards. A harmless-looking case edge can be as sharp as a razor, and remove large chunks of flesh if accidentally nudged with a slipping hand.
dismantle assemble a pc risk assessment safety factors4
Dismantle & Assemble a PCRisk Assessment & Safety factors

Main Hazards ?

  • Electrical
  • ESD – Electrostatic Discharge
  • Sharp Edges
  • Manual Handling
    • PC devices/peripherals are generally very delicate in nature. Handle them with extreme care and always employ some method to disperse static electricity.
dismantle assemble a pc risk assessment safety factors5
Dismantle & Assemble a PCRisk Assessment & Safety factors
  • Manual Handling
    • PC devices/peripherals are generally very delicate in nature. Handle them with extreme care and always employ some method to disperse static electricity.
    • Can I lift it?  - Is it stable?  - Are there any sharp edges?
    • Have I any injuries that could impede my lifting?
    • Is the floor untidy or too slippery?
common installation problems
Common Installation Problems
  • Damaged Parts
  • Wrong Parts
  • Software Issues
  • Interface cards Not Seated
  • Loose Connectors
  • Parts not connected correctly.
handling of components
Handling of Components
  • Hard disk
    • Do not drop or Bang
    • Do not expose to water / liquid
    • Do not take apart
  • Expansion cards
    • Try not to touch the copper track
    • Try not to touch the components
  • Ram
    • Take ESD measures
    • Do nor force into slots
    • Do not bend the modules