Hardware and Software

ch01_review.docx.docx-Reviewing the Basics 1. List six

Remove and Replace a CPU Questions 1. Why shouldn’t you use a screwdriver to remove a heat sink? Answer: you can damage the heat sink and processer 2. What is the minimum voltage of an electrostatic discharge (ESD) that you can feel? Answer:3000 volts 3. What is the voltage range in which ESD can affect components? Answer: it can affect components from a shock as low as 10 volts 4. What was the operating temperature of the CPU? Answer: 36.5 C 5. Why is it important to double-check the bottom of the heat sink before attaching it to the CPU socket? Answer: to check for any plastic wrap that protects the CPU cooler contact point 1 Lab 4.2 Burn-in Test and Benchmark a CPU 1 Review Questions 1. Why do you place a system under a load when you are testing for errors? Answer: to test if the system can handle a heavy load and not fail 2. Why shouldn’t a technician simply put the lowest-price CPU into a machine to save costs? 1 Answer: a lower cost cpu cannot work well with components of higher cost and will in general make the pc run slower 3. What is the purpose of benchmarking a CPU? Answer: it is a system that shows the performance of the CPU 4. It seems that for the best performance, you could simply choose the fastest model in each category. Why isn’t this method a good way to choose a CPU? Answer: you may not need to have the best performing CPU, it will cost a lot of money, and may not support cheaper components properly 5. Why is it important to back up data on a computer before you burn-in test the CPU? Answer: the burn test could cause the pc to damage its self or over heat so backing up your file is needed in case the computer gets damaged Lab 4.3 Explore How CPUs Work Review Questions 1. What are the primary components found within a CPU? Answer: Control unit, Internal memory cache, ALU, Registers, I/O unit 2. Which component of the CPU performs the actual calculations? Answer: ALU 1 3. Which device inside the computer case stores information after power is turned off? Answer: ROM & Flash 4. Which component inside the CPU directs the processor’s activities? Answer: Control Unit Research a RAM Upgrade on the Web Questions 1. Why might you want to upgrade RAM on a system? Answer: to improve the performance 2. Why is it important to match the latencies of the older modules to the newer modules? Answer: the newer modules need to match the older modules latencies because if they are running a different speed then it will make the computer run slower 3. What must be true before a motherboard can take advantage of the triple memory channels on the board? Answer: it must support triple channeling, it must use DDR3 modules, and you cannot have a 4 th module installed as that would make the computer not use triple channeling. 4. Explain the following description of a memory module: DDR3 PC10600 1333MHz. 1

IT CLS | 120 | Hardware and Software | lab | Remove and Replace a CPU Quest

ch03_Lab_Review.docx.docx-Use the HWiNFO Hardware Information Utility

components on the motherboard), control signals (to coordinate acvity), and memory addresses (for one program to tell another program where to ﬁnd data or instrucons). 16. What is a ZIF socket and what is its purpose? A ZIF socket is a zero inseron force socket. When a processor is installed in a socket, extreme care must be taken to protect the socket and the processor against ESD and from damage caused by bending the pins or scratching the socket holes during the installaon. So that even force is applied when inserng the processor in the socket, all current processor sockets have one or two levers on the sides of the socket. These sockets are called zero inseron force (ZIF) sockets 17. What is a device driver and what is the role of motherboard drivers when you update a motherboard or install a new motherboard? Device drivers are small programs stored on the hard drive and installed in Windows that tell Windows how to communicate with a speciﬁc hardware device such as a printer, network port on the motherboard, or scanner. The CD that comes bundled with the motherboard contains a user guide and drivers for its onboard components, and these drivers need to be installed in Windows. You can inially install the drivers from CD, and you can also update the drivers by downloading them from the motherboard manufacturer's web site. 18. What is the design of the Accelerated Hub Architecture? This hub has a fast and slow end, and each end is a separate chip on the motherboard. The fast end of the hub, called the North Bridge, contains the graphics and memory controller, and connects directly to the processor by way of a 64-bit bus, called the Front Side Bus (FSB), system bus, or host bus. The slower end of the hub, called the South Bridge, contains the I/O controller hub (ICH). All I/O (input/output) devices, except video, connect to the hub by using the slower South Bridge. 19. What is the purpose of the CMOS RAM on a motherboard? CMOS RAM is a convenient method to store conﬁguraon data. CMOS (complementary metal- oxide semiconductor) is a method of manufacturing microchips, and CMOS RAM is a small amount of memory stored on the motherboard used to hold motherboard sengs. This CMOS RAM retains the data even when the computer is turned oﬀ because it is charged by a nearby baery. A program in BIOS, called BIOS setup or CMOS setup, can easily make changes to the sengs stored in CMOS RAM. 20. What is the purpose of the chipset on a motherboard? A chipset is a set of chips on the motherboard that works closely with the processor to collecvely control the memory, buses on the motherboard, and some peripherals. The chipset must be compable with the processor it serves. 21. Ivy bridge uses more power than Nehalem chipsets. T/F F

IT CLS | 120 | Hardware and Software | lab | components on the motherboard)

Chapter_9_Review_Qs.docx.docx-Chapter 9 Solutions Reviewing the Basics

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