Presentation onAssembling a Computer

Presenting By:Neeraj Dhiman

Safety Procedures

Clean work area free of dust and food Never open a monitor Remove jewelry and watches Turn power off and remove power plug Fire extinguisher available Use anti static mat and wrist strap Hold cards by edges/avoid touching chips Put components on non conductive surface Do not use magnetized screw drivers

Electrostatic Discharge

If you notice it, it’s at least 2000 volts Charge of 200 volts can damage components Keep all components in anti-static bags Humidity above 50% Use grounded mats (workbench and floor) Use wrist straps Periodically touch unpainted grounded metal

computer parts to lower the body’s static energy

Keeping an Inventory

Document all components, parts purchased Use an inventory checklist May be difficult to recall later Will be helpful in locating and downloading device

drivers Note specific warranty info

Save specifics about installation and maintenance requirements so warranties will be valid

Use small box to hold all manuals and disks Label box for specific computer Store in secure place

Choosing a computer case and system unit

Case Allows easy access to

internal components Provides room for expansion ATX form factor Available desk top space LED indicators on front Dust filters if area where

computer to be used is dusty

Power supply Minimum 250

watts ATX

Single 20 pin Fan pulls air

through case from front to back

Preparing to install Motherboard

Review the motherboard location map Configure the motherboard

Install the CPU, heat sink and fan, RAM Connect power supply cables to

motherboard power connectors and misc. connectors to correct switches and lights

Set the system BIOS

Configuring the processor

Set jumper settings for appropriate frequency

Ensure the CPU used supports the BUS speed and the CPU clock speed of Motherboard

Installing the CPU

ZIF (Zero Insertion Force) trait on nearly all socket 7 and similar types

Inspect pins for damage Locate pin 1 on both chip and socket Open the ZIF socket (raise lever) Insert processor (should easily slide on) Make sure there is not a gap between bottom of chip and

socket Push lever down Set CPU voltage jumper settings if necessary (Pentium II

and later CPU’s adjust automatically to voltage)

Install Heat Sink and Fan

Attach fan to heat sink if not already attached

Apply thin layer of compound to chip surface

Attach heat sink by placing squarely on top of processor and press down gently

Bend clips in place to hold sink Make sure there is good contact

between sink and Chip surface Wipe off any excess compound Plug power cord from fan to fan

power pins on motherboard

Install RAM

Two types RAM used on most PC’s DDR1 DDR2

Look at motherboard map to determine which bank to place DIMM 1 module in

Orient the Dimm chip over the slot (keyed) and insert into slot

Lock in place by closing levers

Installing the Motherboard

Position case for easy access, locate holes on motherboard and corresponding holes on case

Insert spacers that came with motherboard into holes on case and install plastic standoffs into holes on motherboard

Carefully slide the board into the case, lining up holes Tighten board to case with screws Verify that the back of the motherboard is not

touching the case, all slots and connectors line up properly, board is securely held in place, and board does not bend when pressed

Attaching LEDs, key lock and speaker

Use motherboard manual as a guide for proper placement Turbo LED (mainly legacy item) Power LED Hard drive activity LED Key lock switch (common with older

systems, rare now; prevented BIOS meddling)

PC speaker

Connect power supply cables

AT motherboard Locate two large wire leads from power supply

(P8 and P9) Locate 12 pin power connector on motherboard Plug P8 and P9 into connector Be sure black wires are in the middle beside one

another ATX motherboard

Attach the connector that is keyed to fit only one way into the motherboard connector

Attach hard drive and CD-ROM

Use separate IDE cables if possible and set both jumpers to Master (or single on the hard drive if available)

If sharing an IDE cable, set the hard drive to Master and the CD-ROM to slave

Install hard drive away from power supply which can act like a magnet and destroy data

Keep hard drive near front of case to benefit from air drawn into case and keep away from other hardware

Slide drive into selected drive rail and screw drive into place Attach ribbon cable to the primary controller of the motherboard

and attach power cord Follow with CD-ROM installation and attach to secondary

controller of the motherboard

Installing a video card

Use AGP expansion slot if available, otherwise use PCI or ISA

Remove slot insert and insert video card by aligning pins and gently applying pressure

Secure to case with a screw Some motherboards have built-in

video. If you want to install an external card then you must disable the built in video in the CMOS

                    

AGP VIDEO CARD

Post Assembly Checklist

All expansion cards are fully inserted CPU fan is attached to power The 110/220 volt switch is configured properly Drives are connected to power Ribbon cables are attached correctly Fans are free from interference from wires CPU voltage settings are correctly configured Power switch is off and power supply connectors are

connected properly to motherboard All connections are tight Pins are properly aligned Close the case before booting Connect keyboard, mouse and monitor and plug in AC power

cord

We've successfully assembled a computer

THANK YOU

ANY QUERY