How to Troubleshoot A hardware of a Computer System.


How to Troubleshoot A hardware of a Computer System.

Here are some step’s on how to troubleshoot your computer hardware ,Note that the step’s are further broken down into the simplest form , that even A primary school student can understand it in step by step way, So kindly follow the step’s(from 1 -10) gradually carefully, hope you gain from it….
And don’t forget to always visit our site  Alitech(alitechzy.tk) for more related post ,let go but before that you may Also like to know Step By step ways on how to Troubleshoot the IDE on a computer
Which we discuss about some days back …


OBJECTIVE
 1. Unplug The Keyboard.
2. Unplug The Mouse.
3. Disable The L2 Cache.
4. Unplug The Video Card.
 5. Unplug The Ram.
6. Unplug The FDD Interface Cable.
 7. Unplug The Power To FDD, CD-ROM , HDD , and The Mother Board.

RESOURCES
 1. PC-compatible desktop /tower computer system
 2. Fault hardware components:-user supplied fault hardware components (defective mouse, defective DIMM module, defective FDD cable ,defective power connector)

DISCUSSION
 This lab will familiarize you with some of the error associated with bad devices. You will receive different messages from the computer depending on which device has a problem .You will explore a fault with IDE connectivity various no –signal problems

Procedure/Steps
. 1. Establish the “halt on” setting in the cmos setup utility
 (a) Turn ON the PC
 (b) Press the DELETE key to enter the CMOS setup Utility
 (c) Press the ENTER key to enter the Standard CMOS setup
 (d) Change the Halt On: setting to All errors, and press the ESC key
(e) Press the F10 key and ENTER key to save the change and exit the CMOS Setup Utility .
 2. Keyboard
(a) Verify that the PC is off; if it is not, shut it down.
 (b) Unplug the keyboard connector from the back of the PC as shown in Figure 4-1
(c) Put on the PC
 (d) Record your observation about any error given in Table4-1
 (e) Put off the PC
(f) Plug in the keyboard .
 3. Mouse
Figure 4-2: Unplug the Mouse
 Unplug the mouse connector from the back of the PC as shown in Figure 4-2
(a) Plug in the faulted mouse
 (b) Put on the PC
(c) Let the PC boot to Windows XP desktop
(d) Move the mouse and record your observation in Table 4-2

(e) Make sure that “Shut Down” is selected from the Start button
(f) Click on Turn Off to put off the PC
(g) Replace the original mouse
. 4. L2 Cache
(a) Turn on the PC and press DELETE to enter CMOS setup
(b) Use the arrow keys to browse to L2 Cache, usually in Advance settings
NOTE: the L2 Cache is sometimes called the External Cache
(c) Disable L2 Cache by pressing the +/- key or by pressing ENTER and using the arrow keys
 (d) Save settings and exit CMOS Setup
 (e) Boot the PC to Windows XP
(f) Record your observation in Table4-3
(g) Restart the PC and enter CMOS Setup as before
(h) Repeat Steps b-d, only this time, Enable L2 Cache
 (i) Put off the PC .
 5. Video card
 (a) Remove the side panel of the PC
 (b) Unplug any external connection to the video card
 (c) Unscrew the mounting screw of the video card
(d) Pull the card out of the slot, either a PCI or AGP slot as shown in Figure 4-3
(e) Turn the PC on and record you observation in Table 4-4
(f) Put off the PC
 (g) Replace the Video card in it’s slot
 (h) Replace the mounting screw.
 (i) Replace any external connection.

Figure 4-3: Unplug the Video Card .
 6. Ram
 (a) Unplug All the external memory from the motherboard. Be careful with the clamps on the ends of the memory slot as shown in Figure 4-4
Figure4-4 Unplug Memory
 (b) Insert the faulted memory
(c) Put on the PC on and record your observation in Table 4-5

(d) Put off the PC
(e) Replace the memory in their original slot
 7. Fdd interface
 (a) Unplug the floppy-disk interface at the end connected to the floppy drive as shown in Figure 4-5
Figure 4-5: Unplug Floppy Interface
 (b) Plug in the faulted floppy interface
(c) Put ON the PC
 (d) Record you observation in Table 4-7
 (e) Put off the PC
 (f) Replace the floppy drive power connector to it’s original location
8. Cd -rom power
 (a) Unplug the power connector to the CD-ROM as in Figure 4-6. Don’t unplug the interface cable
 (b) Put ON the PC
Figure 4-6:CD-ROM Connection
 (c) If the hard drive and CD-ROM are on the same cable, record the error of the non-booting system in Table 4-8. Skip to Step i
(d) Once Windows has boot up, move the mouse and double-click on My
Computer
(e) Record the icon listed on the right in Table 4-9

(f) Close My Computer by clicking the X in the top right part of the Window.
(g) Shut down Windows by clicking Start/Shut Down and Turn Off.
(h) Put off the PC and replace the CD-ROM power connector into it’s original location
9. HDD power
 (a) Unplug the power connector to the HDD as in Figure 4-7.
(b) Put on the PC on and record your observation in Table 4-10
(c) Put off the PC and replace the HDD power connector
Figure 4-7: Hard Drive Connections
 10. Motherboard
 (a) Unplug the motherboard power connector to the HDD as in Figure 4-8
(b) Put on the PC on and record your observation in Table 4-11
(c) Put off the PC and replace the motherboard power connector
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