Computer diagnosing, also known as computer diagnostics, refers to the process of identifying and troubleshooting issues with a computer system. This typically involves analyzing various components of the computer, such as hardware, software, and network connections, to determine the cause of any problems or malfunctions. Computer diagnosing can encompass a range of tasks, including: Hardware diagnostics: Checking the hardware components of the computer, such as the CPU, RAM, hard drive, graphics card, etc., for any faults or failures. This may involve running diagnostic tests provided by the manufacturer or using third-party diagnostic tools. Software diagnostics: Identifying and resolving issues related to software applications, drivers, operating system errors, or conflicts between different software components. Network diagnostics: Troubleshooting network-related problems, such as connectivity issues, slow internet speeds, or configuration problems with routers or modems. Virus and malware detection: Scanning the computer for viruses, malware, and other malicious software that may be causing performance issues or compromising security. System performance analysis: Monitoring and analyzing system performance metrics to identify bottlenecks, resource usage issues, or other factors affecting overall system performance. Computer diagnosing is an essential part of computer maintenance and troubleshooting, allowing users to identify and resolve issues to ensure their systems operate smoothly and efficiently. Diagnostic Tools: There are various diagnostic tools available for different aspects of computer diagnosing. These tools can be built into the operating system, provided by hardware manufacturers, or third-party applications. Examples include Windows Diagnostic Tools, Memtest86 for RAM testing, CrystalDiskInfo for hard drive diagnostics, and Wireshark for network analysis. Diagnostic Procedures: When diagnosing a computer issue, it's important to follow systematic procedures to isolate the problem. This often involves a process of elimination, testing individual components or software elements to identify the source of the problem. For example, if a computer won't boot, steps might include checking power connections, testing the power supply, examining RAM modules, and so on. Logging and Error Messages: Computers often generate error messages or log files when problems occur. Analyzing these messages can provide valuable clues about the nature of the issue. Error messages might indicate specific hardware failures, software conflicts, or configuration problems. Event Viewer in Windows and syslog in Unix-like operating systems are examples of tools for accessing system logs. Remote Diagnostics: In some cases, computer diagnosing can be performed remotely, especially in enterprise environments or with the help of technical support services. Remote diagnostic tools allow technicians to access and analyze a computer's system remote.

1. ICT 9: COMPUTER HARDWARE
SERVICING
MODULE 4, LESSON 1: PLAN AND PREPARE FOR
DIAGNOSIS OF COMPUTER SYSTEMS
ERRORS
DIAGNOSING COMPUTER SYSTEMS

2. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
 Probably the most frustrating problem
computer users run into are startup problems,
where your computer won’t boot. Equally
annoying are error messages you constantly
run into during your computer’s startup
process.
11/27/2017
Prepared by LMCadapan KNHS 2017
2

3. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
 In this module you will be given a few tips on
how you can avoid some of the most common
problems that happen right after your
computer is turned on.
11/27/2017
Prepared by LMCadapan KNHS 2017
3

4. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Trial and error: When you find a faulty
component in your computer, check it with the
other computers so that you can make sure
whether the fault is in the component or not.
11/27/2017
Prepared by LMCadapan KNHS 2017
4

5. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Check cables: In case of any device failure,
check all the cables of your computer such as
data cables, power cable, internal circuitry
cables and make sure that all these are
plugged in and working fine.
11/27/2017
Prepared by LMCadapan KNHS 2017
5

6. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Hardware settings: Check the hardware
settings in the CMOS and in the device
manager of the system and make all the
device drivers up to date and all the cards are
plugged in properly.
11/27/2017
Prepared by LMCadapan KNHS 2017
6

7. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Notice changes: When you notice a software
or hardware error in your computer, determine
what was changed before the problem
occurred.
11/27/2017
Prepared by LMCadapan KNHS 2017
7

8. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Event viewer: In the event viewer, you will find
the error or warning messages associated with
any faulty hardware or software.
11/27/2017
Prepared by LMCadapan KNHS 2017
8

9. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Make notes: Troubleshooting is a big learning
option and we can learn a lot when we face
any kind of troubleshooting in our computer.
11/27/2017
Prepared by LMCadapan KNHS 2017
9

10. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
PC Diagnosing
Basic Troubleshooting.
 Make notes: This include the error messages
and their solutions, so that you have a record
on how a certain problem occurred and how
did you solve it.
11/27/2017
Prepared by LMCadapan KNHS 2017
10

11. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
You are working away at your computer when
suddenly, up comes an error message – or
worse, your computer comes to a screeching
halt.
Here are the common computer problems and
solutions that can help you.
11/27/2017
Prepared by LMCadapan KNHS 2017
11

12. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
1. Check the POST. POST stands for Power On
Self-Test. This is generally the first or second
thing that appears on a computer after turning
on the power. This appears before the
operating system begins to load.
11/27/2017
Prepared by LMCadapan KNHS 2017
12

13. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
1. Check the POST. POST will display any
problems found with hardware that makes the
computer unable to boot, POST may also
display problems with hardware that allow the
computer to boot, but not operate at its full
capacity during operation. 11/27/2017
Prepared by LMCadapan KNHS 2017
13

14. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
2. Notice the load time of the OS (operating
system). A longer than usual load time may
indicate errors in the hard drive.
11/27/2017
Prepared by LMCadapan KNHS 2017
14

15. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
3. Notice any graphics problems once the OS
has loaded. Reduced graphics may indicate
driver failures or hardware failures with
graphic cards.
11/27/2017
Prepared by LMCadapan KNHS 2017
15

16. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
4. Perform an auditory test. An auditory test is
an unorthodox, but still effective way of
judging how a computer is working. With the
computer on and running, play any decent
length audio file (usually above 30 sec).
11/27/2017
Prepared by LMCadapan KNHS 2017
16

17. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
4. Perform an auditory test. If the audio is
choppy or slow, it usually means that the
processor is working at an elevated level, or
there is not enough RAM to run all programs
loading.
11/27/2017
Prepared by LMCadapan KNHS 2017
17

18. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
4. Perform an auditory test. Changing the
startup sound is a great way to apply this test.
Another issue associated with choppy sounds
is PIO (Programmed Input/Output) Mode.
11/27/2017
Prepared by LMCadapan KNHS 2017
18

19. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
4. Perform an auditory test. This affects how
the hard drive reads and writes data from a
drive. Switching to Direct Memory Access
(DMA) allows for faster reads and writes, and
can sometimes repair choppy audio.
11/27/2017
Prepared by LMCadapan KNHS 2017
19

20. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
5. Check any newly installed hardware. Many
operating systems, especially Windows, can
conflict with new drivers. The driver may be
badly written, or it may conflict with another
process.
11/27/2017
Prepared by LMCadapan KNHS 2017
20

21. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
5. Check any newly installed hardware.
Windows will usually notify you about devices
that are causing a problem, or have a
problem.
11/27/2017
Prepared by LMCadapan KNHS 2017
21

22. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
5. Check any newly installed hardware. To
check this use the Device Manager, this can
be accessed by entering the Control Panel,
clicking the System icon, clicking the
Hardware tab, and clicking on Device
Manager. 11/27/2017
Prepared by LMCadapan KNHS 2017
22

23. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
5. Check any newly installed hardware. Use
this to check and arrange the properties of
hardware.
11/27/2017
Prepared by LMCadapan KNHS 2017
23

24. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
6. Check any newly installed software.
Software may require more resources than
the system can provide.
11/27/2017
Prepared by LMCadapan KNHS 2017
24

25. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
6. Check any newly installed software.
Chances are that if a problem begins after
software starts, the software is causing it. If
the problem appears directly upon startup, it
may be caused by software that starts
automatically on boot. 11/27/2017
Prepared by LMCadapan KNHS 2017
25

26. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
7. Check RAM and CPU consumption. A
common problem is a choppy or sluggish
system. If a system is choppy it is good
practice to see if a program is consuming
more resources than the computer can
provide. 11/27/2017
Prepared by LMCadapan KNHS 2017
26

27. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
7. Check RAM and CPU consumption. An
easy way to check this is to use the Task
Manager, right click on the taskbar select Task
Manager, and click the Processes tab.
11/27/2017
Prepared by LMCadapan KNHS 2017
27

28. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
7. Check RAM and CPU consumption. The
CPU column contains a number that indicates
the percentage of CPU the process is
consuming. The Memory Usage column
indicates how much memory a process is
consuming. 11/27/2017
Prepared by LMCadapan KNHS 2017
28

29. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
8. Listen to the computer, if the hard drive is
scratching or making loud noises, shut off
the computer and have a professional
diagnose the hard drive.
11/27/2017
Prepared by LMCadapan KNHS 2017
29

30. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
8. Listen to the CPU fan, this comes on a high
speed when the CPU is working hard, and
can tell you when the computer is working
beyond its capacity.
11/27/2017
Prepared by LMCadapan KNHS 2017
30

31. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
9. Run a virus and malware scan.
Performance problems can be caused by
malware on the computer. Running a virus
scan can unearth any problems. Use a
commonly updated virus scanner (such as
Norton Antivirus or Avast! Antivirus)
11/27/2017
Prepared by LMCadapan KNHS 2017
31

32. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common PC Problems and Solutions
Steps
10. Check for the problem in safe mode. To
enter safe mode, tap F8 repeatedly during
POST (this works on most systems). If the
problem persists in safe mode, it is a fair bet
that the operating system itself is to blame.
11/27/2017
Prepared by LMCadapan KNHS 2017
32

33. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common Trouble shooting for Computer
Units
1. Double check the power connections.
2. Voltage Regulator and power supply could
cause power failure in the computer unit.
3. Check the power cords and cable connectors
in your computer unit.
11/27/2017
Prepared by LMCadapan KNHS 2017
33

34. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Common Trouble shooting for Computer
Units
4. Unseated card. Loose cards could cause
malfunction.
5. Check the boot sequence configuration in the
advance BIOS (Basic Input /Output Unit)
setup.
11/27/2017
Prepared by LMCadapan KNHS 2017
34

35. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Diagnosing Network Connection
Things to look for if a PC is connected to the
internet or network:
First check the cable connecting to the
network card into the network hub.
Check the back of the computer to see if the
network card light is on
11/27/2017
Prepared by LMCadapan KNHS 2017
35

36. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Diagnosing Network Connection
Things to look for if a PC is connected to the
internet or network:
Check the network cable ( use cable tester)
Check the network HUB (use multi-tester)
11/27/2017
Prepared by LMCadapan KNHS 2017
36

37. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
11/27/2017
Prepared by LMCadapan KNHS 2017
37

38. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
1. What does P.O.S.T. stand for?
11/27/2017
Prepared by LMCadapan KNHS 2017
38

39. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
2. In which window can you check on newly
installed devices and arrange its properties?
11/27/2017
Prepared by LMCadapan KNHS 2017
39

40. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
3. Switching to DMA allows for faster reads and
writes, and can sometimes repair choppy
audio. What does DMA stand for?
11/27/2017
Prepared by LMCadapan KNHS 2017
40

41. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
4. When you find a faulty component in your
computer, check it with the other computers so
that you can make sure whether the fault is in
the component or not. What basic
troubleshooting method is this?
11/27/2017
Prepared by LMCadapan KNHS 2017
41

42. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
5. Which function key usually gets you to safe
mode?
11/27/2017
Prepared by LMCadapan KNHS 2017
42

43. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
6. Which tab on the Task Manager contains the
columns indicating the percentage of CPU
and memory a process is consuming?
11/27/2017
Prepared by LMCadapan KNHS 2017
43

44. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
7. What does CMOS stand for?
11/27/2017
Prepared by LMCadapan KNHS 2017
44

45. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
8. What tool is used to check the network HUB?
11/27/2017
Prepared by LMCadapan KNHS 2017
45

46. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
9. A longer than usual load time of what software
may indicate errors in the hard drive?
11/27/2017
Prepared by LMCadapan KNHS 2017
46

47. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
QUIZ
10. (Fill in the blanks) ------- --------- and power
supply could cause power failure in the
computer unit.
11/27/2017
Prepared by LMCadapan KNHS 2017
47

48. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
End of
QUIZ
11/27/2017
Prepared by LMCadapan KNHS 2017
48

49. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ANSWERS TO QUIZ
1. Power On Self Test
2. device manager
3. Direct Memory Access
4. trial and error
5. F8
11/27/2017
Prepared by LMCadapan KNHS 2017
49

50. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ANSWERS TO QUIZ
6. processes
7. Complimentary Metal Oxide Semiconductor
8. multi-tester/multi-meter
9. Operating System (OS)
10. Voltage Regulator/AVR
11/27/2017
Prepared by LMCadapan KNHS 2017
50

51. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ACTIVITY
(Individual)
11/27/2017
Prepared by LMCadapan KNHS 2017
51

52. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Develop a Sample Diagnostic Plan
List down all the components to be checked
based on the symptom. Follow the table below.
11/27/2017
Prepared by LMCadapan KNHS 2017
52
SYMPTOM 1: Dead computer monitor
Component to be checked Possible remedy if component is
defective
1.
SYMPTOM 2: Mouse does not work

53. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ACTIVITY
(Group)
11/27/2017
Prepared by LMCadapan KNHS 2017
53

54. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Diagnosing a Computer Component
Create a diagnostic plan for troubleshooting a
computer component. Use several tests to make
sure that the unit is defective. Write down the
equipment to be used and the steps in
determining if the component is defective or not.
Assign a group member to report your plan.
11/27/2017
Prepared by LMCadapan KNHS 2017
54

55. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
Diagnosing a Computer Component
Group 1 & 2 - Power Supply Unit (PSU)
Group 3 & 4 - Hard Disk Drive (HDD)
Group 5 & 6 - Monitor
11/27/2017
Prepared by LMCadapan KNHS 2017
55

56. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL
QUIZ
11/27/2017
Prepared by LMCadapan KNHS 2017
56

57. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
1. What does CMOS stand for?
11/27/2017
Prepared by LMCadapan KNHS 2017
57

58. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
2. Where can we access CMOS settings?
11/27/2017
Prepared by LMCadapan KNHS 2017
58

59. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
3. In what window can you find the error or
warning message associated with any faulty
hardware or software?
11/27/2017
Prepared by LMCadapan KNHS 2017
59

60. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
4. What test involves playing an audio file?
11/27/2017
Prepared by LMCadapan KNHS 2017
60

61. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
5. What does PIO in PIO mode stand for?
11/27/2017
Prepared by LMCadapan KNHS 2017
61

62. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
6. What shortcut key brings you directly to the
task manager window?
11/27/2017
Prepared by LMCadapan KNHS 2017
62

63. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
7. What is the best anti-virus program?
11/27/2017
Prepared by LMCadapan KNHS 2017
63

64. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
8. What tool is used to check a network cable?
11/27/2017
Prepared by LMCadapan KNHS 2017
64

65. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
9. High CPU fan speed means the CPU is
working hard. True or false?
11/27/2017
Prepared by LMCadapan KNHS 2017
65

66. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
REMEDIAL QUIZ
10. In case of any device failure, what is the first
thing to check?
11/27/2017
Prepared by LMCadapan KNHS 2017
66

67. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
End of
REMEDIAL
QUIZ
11/27/2017
Prepared by LMCadapan KNHS 2017
67

68. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ANSWERS TO REMEDIAL QUIZ
1. Complimentary Metal Oxide Semi-conductor
2. BIOS setup
3. event manager
4. auditory test
5. Programmed Input/Output
11/27/2017
Prepared by LMCadapan KNHS 2017
68

69. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
ANSWERS TO REMEDIAL QUIZ
6. ctrl + shift + esc
7. an updated anti-virus program
8. cable tester
9. true
10. cables
11/27/2017
Prepared by LMCadapan KNHS 2017
69

70. ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
End of
ICT 9: Computer Hardware Servicing
Module 4, Lesson 1: PLAN AND PREPARE FOR DIAGNOSIS OF COMPUTER
SYSTEMS ERRORS
DIAGNOSING COMPUTER SYSTEMS
11/27/2017
Prepared by LMCadapan KNHS 2017
70