HARDWARE TROUBLE SHOOTING
FOUR WAYS TO INCREASE PERFORMANCE OF YOUR COMPUTER
FOUR WAYS TO INCREASE PERFORMANCE OF YOUR COMPUTER
> Free Disk Space : Click Start, then All Programs,
then Accessories, then System Tools and then click Disk Cleanup.
Specify which drive you want to clean. Disk Cleanup for dialog box appears, scroll through and check the
Files to delete and click Ok.
OR
Right click on the Disk and click Disk Cleanup,
Disk Cleanup for dialog box appears, scroll through and check the Files to delete and click Ok.
> Increase Data Access Speed : Click Start, then click All Programs, then click
Accessories, then click System Tools, and then click Disk Defragmenter. The Disk
Defragmenter dialog box appears, click the drive you want to defragment and then click the Analyze
button. After analyzing a dialog box appears saying whether you should defragment the analyzed drive.
To defragment the drive, click Defragment button. This will take a long time depending upon the size
of your disk and data.
> Repair Disk Errors : Click Start, then click My Computer,
In My Computer window, right-click the disk you want to scan for bad sectors and then click Properties,
click the Tools tab, then click the Check Now button. Check Disk dialog box, check mark the
Scan for and attempt recovery of bad sectors box and then click Start. If bad sectors are found during the scan,
select to fix them.
> Scan the system for Spyware : Spyware collect information such as websites you visited,
username and password without your knowledge and permission. In addition to privacy fear, spyware can hinder
your computer's performance making it slow, hang and not respond.
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NO POWER
This is a situation when the CPU does not switch on;
you first need to check the power supply point if there is supply. Does the power LED
in front of the CPU switch on? Is the power supply (SMPS) fan which is behind the CPU
running? Is the flea power LED on the system board lit? Eliminate all spike guards or
stabilizers. You have to check if the power cables are properly plugged in and the SMPS
switch which is behind the system is on, voltage selector switch/voltage regulator module
set to 110V or 220V (will defer depending on the country in which you are).
Power LED/SMPS fan off, but flea power LED on the system board on: Likely cause could
be control panel failure / I/O panel failure / cable from I/O panel to system board / system board / power supply (SMPS).
Power LED/SMPS/fan/flea power LED off: Likely cause could be system not plugged in / unplugged
cables on system board / wall or power strip outlet / power cord / power supply (SMPS).
Power LED/flea power LED on, SMPS fan off: Likely cause could be SMPS / voltage selector
switch/voltage regulator module.
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NO POST
Power On Self Test (POST) is when the system tests all its hardware
components before booting to OS. Sometimes the system hangs at pre-boot screen, this is a screen where
you see the manufacturer logo or the system checking/detecting the processor, RAM, hard drive and CD/DVD
drive. Common cure for this issue is reseating the RAM, if still doesn’t work reseat the processor, other
solutions are unplug all external peripherals (eg. USB devices, printer etc.), unplugging all internal
hard disk / CD-DVD / floppy cables and power connectors and the cards in the motherboard slots (eg. Modem,
LAN, display, sound), then introducing them back one-by-one and checking the system to eliminate the faulty
component causing the system to hang at POST or NO POST.
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NO BOOT
You get video signal to the monitor but OS doesn’t load.
In this situation check for error messages on screen to trouble shoot. Check in the FDD (floppy)
& CD/DVD for any bootable media in the drives. Can be due to the presence of a faulty bootable
media in these drives. Enter the BIOS setup by pressing ‘Delete’ or ‘F2’ (refer system manual) and see if the HDD
(hard drive/disk) is detected and the boot sequence. Corrupt OS or important boot files missing can
also cause NO BOOT. The best way to locate the fault is to read the error message displayed to know
the exact issue.
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MANAGING DEVICES
DEVICE MANAGER
Right click My Computer, then click Manage, then click Device Manager. OR Right click My Computer, then click Properties, then click Hardware tab
and then click Device Manager OR Click Start, then click Run and then type devmgmt.msc. Right click the device from the list of devices and then click Properties.
INSTALL A NEW DRIVER
Double-click the device you want to update or change, then right click the device you want to update or change, then click Update Driver to open the Hardware Update Wizard and follow the instructions.
ROLL BACK DRIVER
In the Device Manager right click the device for which you want to revert to the previous version of the driver and click Properties, click the Drivers tab, click Roll Back Driver.
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HARDWARE FAILURE
Improperly installed or corrupt software is one of the reasons
for hardware failure. You need to first see if the proper drivers are installed, try uninstall/roll
back the drivers and reinstalling. If you do not have the driver CD that was supplied by the hardware
manufacturer try download from the manufactures site, please also see that you are downloading for the
same model and OS.
You can also try reseating and changing slots, which works if reinstalling drivers doesn’t.
If it’s an external peripheral try connecting it to a different port or connector and then reinstall
the drivers. If still doesn’t work try a different computer, if one is available, if it works then there
is a problem with your computer configuration. You may try reinstalling the OS, if still the problem exists,
there is a problem with the system.
When the hardware fails on the different slot/port/connector of your
computer or a different computer the problem is most likely with the hardware. You need to replace the hardware.
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WARM BOOT & COLD BOOT
A warm boot is accomplished by pressing the CTRL+ALT+DEL key combination, this warm-boot process usually does not go through the complete boot process; usually, it skips the power-on self test (POST) to save time. In addition, a warm boot normally fails to reset all adapters in the computer's adapter slots.
If you use the Reset button to cold boot the computer, it normally restarts the boot procedure, including the POST. This method does not necessarily terminate power to the motherboard. If the power is not interrupted, the cold boot may fail to reset all adapters in the computer's adapter slots.
* To assure that all adapters are properly reset, you should utilize the power switch to turn off the computer. Leaving the power off for ten seconds ensures that all the capacitors on the motherboard have time to discharge and must also give the hard disk drive an opportunity to stop revolving.
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TROUBLE SHOOTING TIPS:
Check logs in the event viewer to see if there is any event that can be of assistance to you to find out which device or driver is causing trouble.
Check the BIOS settings to see if the devices are enabled. Check if the power cables are properly connected and switched on. Does the problem occurs during the execution of any particular program. Is the problem related to any device or application? During what conditions does it occur? Has it occurred in the past, if yes then what measures were adapted? Which software was recently installed and did it work correctly in the past. Which hardware was recently installed and did it work correctly in the past. Do these Software/Hardware work fine on other systems.
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WARNING: This piece of writing contains steps that may involve altering your system settings
or that might require you to make physical changes to your computer hardware.
Wrong changes made to the computer can cause serious problems.
We cannot guarantee that harms that are caused by these changes can be resolved.
Change the settings at your own risk. If you need assistance with any of these steps,
contact the hardware manufacturer. Making hardware or BIOS changes to your computer
may invalidate your warranty. If you do not want to make hardware changes to your computer,
contact your computer vendor or a qualified technician.
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