Preventive maintenance (PM) involves tests, measurements, adjustments, and part replacements done proactively to prevent faults and failures of equipment. The primary goal of PM is to avoid equipment failures by identifying and fixing issues before they cause problems. This is achieved through planned and condition-based maintenance approaches.

2. DEFINITION OF PREVENTIVE
MAINTENANCE
 Preventive maintenance (PM) has the following meanings:
 MAINTAINANCE, including tests, measurements, adjustments, and parts
replacement, performed specifically to prevent faults from occurring.
 The primary goal of maintainance is to avoid or mitigate the consequences of failure of
equipment. This may be by preventing the failure before it actually occurs which
Planned Maintainance and Condition Based Maintainance help to achieve.

4. SOFTWARE DAMAGE HARDWARE DAMAGE
SOUND
 Adjust the sound settings
 Test with different audio applications such
as Real Player or VLC player.
 Install Audio Codecs
 Check if the sound cables are working, you
can test the issue by using other cables if
available.
MONITOR
 Test your monitor.
 Verify that your PC has fully power cycled.
 Troubleshoot the cause of the beep code.
 Clear the CMOS.
INTERNET ERROR
 Make sure that script errors occur on
multiple webpages
 Make sure that the problem is caused by
files or settings on your computer
CPU
 Clean your CMOS battery
 Rubbing it a little bit and put it back in.
 Check your monitor cable and the VGA card.
HARD DISK
 Go to Start and open (My) Computer.
 Right-click on the drive you wish to check and go
to Properties.
 Go to the Tools tab and click on the Check
Now button
 Click Start to launch the tool.

5. THANK
YOU