Sam B's CSC231 2014 Page
Sam Behrens Lab Report
October 7, 2014
The purpose of this lab was to take apart a computer and identify all the parts of the computer. We were using a Dell Model DHM computer. After dissembling it we put the parts back together and closed the computer.
The picture above shows the case that holds all the major components of the computer. On the side of the case had a sticker with the make and model number. In order to open the case we had to push down on two buttons on the top and the bottom of the case and also had to unscrew one screw at the back of the case. In the front and back of the case it had a cd-rom reader, usb ports, ethernet connection, and a 1/8 inch female headphone jack input.The case opened in a swivel motion in which the two sides of the case opened at one center point.
On one side of the computer there was the motherboard that was hooked up to the power and also to other components like the CD-Rom drive. In order to remove the motherboard we had to lift up and out to detach it from the case. The motherboard has lines that are visible. These lines are bus lines that connect the different components of the motherboard. On the motherboard there many different components including the processor, RAM, and the Crystal. On the motherboard you will also find a small battery on it. This battery is used to power the clock also located on the motherboard.
What is interesting about the hard disks of this computer is that there are two of them and it seems like you can switch between them. The front panel of the case has a button in which you can indicate which drive you would like to use. The disk runs at 7200rpm and has a capacity of 80GB. It is made by Hitachi. The inside of the drives contain what looks like a CD and it has an arm that writes to the disk.
The RAM (Random Access Memory) in this computer contains 512 MB. It is made by infineon. It is located between the processor and the heat sink on the motherboard. The RAM comes in these very thin plates that stand up perpendicularly from the motherboard. There were 2 different plates.
The crystal seen above is the small oval cap on the motherboard. It is used to keep time for the computer. These crystals are usually quartz crystals. On the user manual it says the system clock functions at 400 MHz. Without this crystal the computer wouldn't able to operate correctly.
The processor is an Intel processor. The processor is the brain of the computer and is also known as the CPU. We can remove the processor and is also located on the motherboard near the RAM and also the heat sink. The processor number is FW82801E8 or L3510146 I am not sure which is the model number and which is the serial number.
The Cooling System
The cooling system is a large fan that is located next to motherboard. There also is a large heat sink on the motherboard. Without this cooling system, the computer would overheat and damage components on the motherboard. Sometimes when people fry their motherboard it means it overheats and no longer works. Often when the system gets too hot the computer lags or shuts down.
The CD-Rom Drive
The CD-Rom drive is located in the front of the case so it is easily accessible to users. It is a CD drive and connected to the motherboard with various cables.
The Power Supply
This is the power supply. The power supply converts AC to DC voltage. With the many cables that exist on the power supply it is is obvious that the power supply connects to a multitude of places within the computer. It connects to many places on the motherboard, the CD-Rom, and many other parts
The Cabling System
There was two types of cabling systems. One which connected the power supply to the mother board and other components like the CD-Rom drive and the other which connected the components to each other. These are the grey cables that send information from the components to the motherboard and visa versa. The power cables were red and and orange.