The document provides instructions for assembling the main components of a computer system, including the motherboard, CPU, RAM, power supply, video card, hard drives, and cabling. It describes installing the motherboard standoffs and I/O shield. For the CPU, it emphasizes reading instructions carefully due to the difficulty of installation. RAM modules insert into slots by pushing levers to the side. The power supply mounts to the case bracket or other location depending on case design. Hard drive jumpers must be set before installing drives to configure them as master or slave on each IDE channel. Cables connect SATA and IDE hard drives to motherboard ports.

1. Assemblyof computer system
Motherboard: Find the motherboard standoffs (spacers) that should have come with the case. They are
screws, usually brass, with large hexagonal heads that are tapped so you can fasten screws into the top.
These hold the motherboard up off the case preventing a short-circuit. Set these aside. Remove the I/O
Shield from the back of the case where the ports on the back of the motherboard will fit, and put in the I/O
Shield that came with your motherboard. There may be small metal tabs on the inside of this face plate, if
so you may have to adjust them to accommodate the ports on the back of the motherboard.
CPU: Installing the CPU, and the CPU’s heat-sink and fan, are by far the most difficult steps you’ll have to
complete during your build. Here, more than anywhere else, it will pay to read the instructions carefully,
look at the parts, study the diagrams that came with your CPU and/or third party cooling solution, and
make sure you thoroughly understand what you are going to do before you try to do it. During the
process, if anything does not seem to fit or make sense, put the parts down and look things over carefully
before you proceed
Memory solts: Next, you will need to install your RAM (random access memory). Find the RAM slots on
your motherboard; they will look something like the picture on your left. To install the RAM modules, first
push on the levers (white plastic in the picture) on either side of the DIMM socket, so that they move to
the sides. Do not force them, they should move fairly easily
Power supply: Installing your power supply is pretty straightforward, if it came with your case it was pre-
installed and if you took it out earlier to get the motherboard in, now is the time to put it back. Otherwise a
few moments of screwdriver work will get the job done. Generally there will be a bracket on the top of

2. case where the power supply is mounted and a few screws used to fix it in place. Some cases place the
Power Supply differently; see the documentation that came with yours.
Video card: If you have an AGP video card: Install the video card into the AGP socket. This is always the
top expansion slot near the back of the computer. AGP slots are often brown, but can also be strange
colors
Such as fluorescent green. Check the motherboard for levers (or similar devices) that are part of the AGP
slot to help hold the card in place. These must be retracted before insertion of the card. Check the
motherboard's manual for information on how to use these devices (if your motherboard has one).
Jumper setting: before you install IDE/ATA (PATA) drives; you will need to set the drives jumpers. Each
IDE/ATA channel can handle two drives, a master and a slave. Consult your drive's instructions on how to
set the jumpers. The jumper configurations are usually either printed on the back, or on the top of the
drive. Drives can be configured in 2 ways: Drive Select or Cable Select.
VGAPORTS: Monitors will either have a VGA, DVI, or a new HDMI plug (see picture, as they are
a lot less apparent than PS/2 / USB by comparison). Most monitors use VGA connectors, and
so most graphics cards have VGA output. If you have one type of plug and the graphics card
has another, you can easily buy an adapter. Some cards even come with one.

3. IDE (integrated drive electronics) hard disk drivers:the ide interface specifies that the hard disk
controller is bulit on the motherboard these drives are also called (parallel ata) drives as if uses
parallel communication. The ATA (advanced technology attachment) transfers data between
the hard disk and system using 16 bits bus width with speeds of up to 133MB per second.
IDE cable: IDE/PATA hard disks are connected to the IDE port on the motherboard using a
40/80 pin conductorcable.
SATA(serial ATA)hard disk dries: serial ata uses serial communications transfers data bit at a
time with the speed of upto 600mb per second.SATA hard disk a smaller 7-wire cable to
connect to the system this cables can have a maximum length of 1 meter