103b-bg PC Lab

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This is a picture of me after we put all the parts back into the box at the end of lab.

Demolition Lab

  • February 7, 2011
  • Partner: Kayla Kim

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Dell GX620

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This is the picture of our computer before the lab. We can see the CD/DVD ROM on the top left, power supply on the top right, hard disk on the bottom left, the processor is hidden under the black box (heat sink and fan), RAM (green cards) under the power supply and the graphics card (red) on the bottom right.


First, we had to remove the black box.

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Then, we found where it is!

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This is the processor also known as CPU (Central Processing Unit). This is the brain of the computer. This computer has Pentium 4.

Random Access Memory (RAM)

RAM stores temporary information. It is the two green cards near where CPU was found.

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This is the RAM removed from the motherboard. This was manufactured by Samsung.

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Power Supply

Power supply is the energy source for the computer. So there are many colored cables that comes out to supply energy to different parts of the computer. The output of this power supply is 305 Watts.

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Hard Disk

Hard disk stores the permanent information. This hard disk can hold 250GB.

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We did not have the tools to open the hard drive but a disk is inside.


This is also known as optical drive. We could not isolate the CD/DVD ROM.

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This is a picture of the motherboard which is the heart of the computer. The lines on the motherboard are electric wires that transfers information. The blue cables are connected to the hard disk to receive and transfer information. This is also known as SATA.

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There is a small battery on the mother board. This small battery has a long life time and is needed to supply constant energy even when the power is off so that the computer can remember the dates, time, etc.

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There is also the crystal. This gives beat or rhythm to the motherboard. It is like the pacemaker of the heart.

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