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3: Microprocessors
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Always handle a CPU chip like a fragile old photograph: very gently, holding it only by the edges Make sure you take complete ESD precautions because even a tiny amount of static electricity can harm a CPU!
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Step 5 Reinsert the CPU with the correct orientation, lock down the ZIF lever, and reattach the fan Now remove the fan assembly and the CPU again Practice this a few times to become comfortable with the process When you re nished practicing, reinsert the CPU for the last time Be sure to apply a thin lm of fresh thermal compound onto the square in the center of the top of the CPU before you place the fan Now reattach the fan assembly Don t forget to plug the fan back in!
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If this were a production system with RAM and other components installed, this would be an ideal time to turn the system back on and make sure you had the CPU seated properly In real life, you should always test your hardware before you put the case back on!
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Step 6 You may leave your CPU/fan assembly installed on the motherboard and place the motherboard on your anti-static mat Optionally, if you reinstalled the motherboard in the case, you may leave it assembled
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Lab Exercise 304: Exploring CPU Specifications with CPU-Z
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Joe is very impressed with your knowledge and expertise and he s relieved that the CPU he purchased on eBay happened to work out You explain that not only did it work out, but he has really improved the performance of his system with the upgraded CPU In fact, to further display the characteristics of the CPU Joe has just purchased, you download a utility known as CPU-Z from wwwcpuidcom This utility reads the speci cations of different PC components from information embedded in those components You launch the utility to display the parameters of the new CPU for Joe
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Learning Objectives
In this lab, you ll identify various CPU speci cations At the end of this lab, you ll be able to
Run the CPU-Z utility Recognize key characteristics of CPUs
Lab Exercise 304: Exploring CPU Speci cations with CPU-Z
Lab Materials and Setup
The materials you need for this lab are
Access to a working computer with Internet access, to facilitate downloading and running the CPU-Z utility A notepad and pencil to document the speci cations Optional: A word processor or spreadsheet application to facilitate the documentation
This lab is more informative if you have access to different types of systems with different classi cations of CPUs
Getting Down to Business
In the following steps, you ll download a reference utility known as CPU-Z and use it to further explore the characteristics of the CPU Step 1 Log on to a computer with Internet access and point your browser to the following Web site: wwwcpuidcom Follow the directions to download the current version of CPU-Z (the current version at this writing is 137) Unzip the le and launch CPU-Z Step 2 The CPU-Z utility displays a number of tabs across the top of the window (Figure 3-5) At this time you are only concerned with the CPU and Cache tabs Using the data gathered by CPU-Z, record some of the pertinent information here: Name _________________________ Code Name _____________________ Package ________________________ Core Speed ______________________ Multiplier ______________________ Bus Speed ______________________ L2 Cache _______________________
Hint
Because of variations in CPUs, chipsets, BIOS, and motherboards, CPU-Z may not be able to display all of the information about your CPU In some cases, the information may actually be erroneous The CPUID Web site has good documentation on some of the common incompatibilities
Step 3 If possible, launch CPU-Z on various machines to compare the characteristics of different CPUs Save the utility for use in future lab exercises
3: Microprocessors
Figure 3-5 The CPU-Z utility
Lab Analysis Test
1 2 3
James has an AMD Duron CPU motherboard and has bought a faster Intel Pentium D 820 from an eBay auction He asks you to install the new CPU What is your rst reaction Joanna called you to say that ever since you installed her new CPU, the PC gives intermittent problems when it runs Sometimes it just quits and freezes up What could possibly be wrong Theresa has a Socket 462 motherboard with an AMD Duron 800-MHz processor and would like to put in a faster CPU Can she install an AMD Athlon Thunderbird 14-GHz processor Why or why not Lindsey runs CPU-Z on her system and notices that the processor s core speed is 21912 and the displayed multiplier is x22 What is the speed of the system clock in Debbie s machine How would the industry display this system clock speed David has been reading the trade magazines and keeps seeing all the hype over the dual-core processors David decides, since he is a power gamer, that he will upgrade to a dual-core CPU to improve the performance of his system when playing his favorite game Will a dual-core processor improve the performance in this scenario Explain
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