Rainey Endowed School

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ICT workshop
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This workshop covers workshop practices
maintenance

• Activity 1 - Review basic rules of electrical
  safety including ESD

• Activity 2 Practice taking readings using a
  multimeter

• Activity 3 Identify, remove and match parts
  with labels fit them back into the PC as a Team

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Electricity kills! Electrical safety in the
workshop is paramount 1 - Do not work on a piece
of equipment unless you have been trained to do
so. 2 Disconnect all equipment from its power
source before removing any covers 3 Never work
alone where there is no-one to help in an
emergency 4 Never assume that an electrical
item is safe to use without checking all power
leads, insulation and safety covers.
Electrical safety
For example Is there any current running
through disconnected parts of a PC?
Basic rules of safety.
visual one
Answer Yes - certain items such as the PC Power
supply are still a shock risk some time after
they have been disconnected from their Power
source.
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ESD precautions
Reducing the risk? 1- Use an antistatic kit
i.e. a mat and/or and wrist strap This will
ensure that both the equipment and the wrist
strap wearer are at the same electrical
potential.
For example What is ESD? This is potentially
dangerous.
visual 2
We all build up static electricity because we
often wear synthetic material, such as nylon.
Synthetic materials act as an insulated layer and
assist static build up. Damp air helps dissipate
static charges.
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Electrical measuring
Practice taking Readings
For example What do we use? We use a multi
meter.
In the IT world we usually check the voltage
and the resistance.
visual 3
Now, READ the simple steps to taking a Reading
and WRITE down your readings starting with the
batteries AND then, TRY a few parts on the
motherboard.
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Identifying parts
For example Lets start with the
motherboard?
visual 4
The motherboard is the heart and soul of a PC.
Its circuit board is central to hosting
components such as the processor, memory, sockets
and keyboard controller. The motherboard also
dictates the type of processor you can use.
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PC Parts
For example What is it?
visual 5
There are three different types which are
IDE/ATA, SCSI, SATA (Serial ATA). Majority of
home PCs are equipped with IDE ones.
It stores all your data including operating
system, applications, user files and documents.
It is a non-volatile storage, which means its
content is not lost if the PC is switched off.
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PC parts
For example What is it?
visual 6
My name is given to silicon chips that stores
volatile computer data. Volatile means that its
content will be lost if the power of the computer
is switched off.
This part comes in many form. The older systems
use SDRAM, while the current systems use DDR2 or
DDR3 SDRAM (Double Data Rate Synchronous Dynamic
Random Access Memory).
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PC parts
For example What is it?
visual 7
Check your back plate on the PC.
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PC parts
For example What is it?
My fan has a power connector which needs to be
connected to a power socket on the motherboard as
shown on the image to the right.
visual 8
Locate the processor socket and your CPU fan on
your motherboard.
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Let us see
CPU USB DDR/SDRAM ElectroStatic
Discharge IDE/SCSI HDD COM1/COM2 Silicon
chips active terminal () common terminal (com
or -)
Hard drive types Universal Serial Bus Black lead
Types of Memory Red lead Memory
modules ESD Computer Processing Unit Serial
communication Ports
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Rainey Endowed School
ICT
Activity Week
13
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