ENGINEERING

Engineering



Engineering

Task 1

Pre-installation Precautions

Take note of the following precautions before you install motherboard components or change any motherboard settings.

Unplug the power cord from the wall socket before touching any component.

To avoid damaging the motherboard components due to static electricity, NEVER place your motherboard directly on the carpet or the like. Also remember to use a grounded wrist strap or touch a safety grounded object before you handle components.

Hold components by the edges and do not touch the ICs.

Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that comes with the component

Question 2

This motherboard is equipped with 1155-Pin socket that supports Intel 1155-PinCPU. Please adopt the type of heat sink and cooling fan compliant with Intel 1155-Pin CPU to dissipate heat. Before you installed the heat sink, you need to spray thermal interface material between the CPU and the heat sink to improve heat dissipation. Ensure that the CPU and the heat sink are securely fastened and in good contact with each other (Cerf, 1997, 33). Then connect the CPU fan to the CPU_FAN connector. For proper installation, please kindly refer to the instruction manuals of your CPU fan and heat sink. Below is an example to illustrate the installation of the heat sink for 1155-Pin CPU.

Step 1. Apply thermal interface material onto centre of IHS on the socket surface.

Step 2. Place the heat sink onto the socket. Ensure fan cables are oriented on side closest to the CPU fan connector on the motherboard

Step 3. Align fasteners with the motherboard through-holes.

Step 4. Rotate the fastener clockwise, then press down on fastener caps with thumb to install and lock. Repeat with remaining fasteners.

Question 3

The typical 32 bit or 64 bit CPU weighs a couple of ounces. (A CPU is an integrated circuit - it plugs into a socket on the motherboard.) A small 8 bit CPU can weigh well under an ounce (like the one in your cell-phone). A server (or desktop - they're the same computer, just being used for different purposes) can weigh anywhere from a couple of pounds to many pounds, depending on the weight of the power supply, how many drives are in it, what other cards are in it, etc. CPU's are very light weight, like less than 1/4 lb. Servers range greatly since there are several different makes and models so there really isn't an average (Ferreira, 1996, 159).

Question 4

At about 25% (by mass), silicon is the second most frequent chemical in the earth's crust (behind oxygen). Sand has a high percentage of Silicon Dioxide (SiO2), which is the base ingredient for semiconductor manufacturing. Silicon is purified in multiple steps to reach the Electronic Grade Silicon used in semiconductors. It ultimately arrives in mono crystal ingots about 12? in diameter (300mm today, the older ingots were 8? or 200mm in diameter and smaller — the first wafers in the 1970s were 2? in diameter, or 50mm). The purity at this level of refinement is about one part per ...