my pc. keeps restarting specially under load , i did formatt,and still ?

Answer 1

You might check to be sure the chip cooling fan is operating properly.

Answer 2

Sorry about the length of my reply but I am trying to be thorough.

Auto Shutdown Problems:

There are many possible causes for this type
of problem:

Hardware failure
Disk/File corruption
Virus, Malware, Spyware, Trojans, Bot Hi-jack
Registry corruption
Windows O/S corruption

And many more...


>>>>>>>>>>>>>Hardware Failure<<<<<<<<<<<<<<<<<<<<<

Check all of these!

Make sure you use a Surge Protector.

This kind of problem is often hardware
related though not always.

Could be a power supply problem.

Could be other hardware problem.

Sometimes the motherboard, RAM, or the
video card causes this type of problem.

Make sure you have the latest BIOS flash
and device drivers.

Could be getting too hot also.

If you are running XP disable

Disable Automatically Restart
in Settings for Startup and Recovery
under Advanced tab in System Properties.
See Control Panel.

Next time it happens look at Event
Logs to see if a reason shows.

If you are getting a STOP message you
can probably find some help here,
http://aumha.org/win5/kbestop.htm...


>>>>>>>>>>>>>Disk/File Corruption<<<<<<<<<<<<<<<<<

Try all of these,

Double left click on My Computer
Right click on your disk drive
Left click on Properties
Left click on the Tools tab
Left click on Check Now, check both boxes, left click on Start,
then reboot your system. Be patient this will take some time.
Repeat to get to Tools then left click on Defragment Now, left
click on Defragment. Be patient this will take some time.


>>>>>>>>>>>>>Windows O/S corruption<<<<<<<<<<<<<<<

Try this:

Windows XP Repair Installation

At some point you may need to repair the installation of Windows
XP. This is preferable to a clean install in many cases since it
attempts to only repair your copy of windows without having to
delete all the files on your computer first. In many cases a
repair installation is enough to fix the problem. A repair install
deletes the files normally installed by windows XP and then
reinstalls them off the disc. A repair install will not rebuild
your computer's registry, delete applications and user settings,
or fix problems caused being caused by a program.

1. First you have to boot the computer with the Windows XP cd in
the cd tray. You will see a black screen and it will ask you
to press any key to boot from the cd so press the spacebar
and your computer will boot from the CD.

2. After a moment you will be taken to the Windows XP Setup
screen. Though the second option says to repair do not press
R. Instead press enter to select the setup for Windows XP.

3. Next, you have to accept the license agreement from windows.
Once you've done that it will search for your existing
installation of windows.

4. Once it has finished detecting the installation you need to
select the XP installation you want to repair. You can repair
the installation by pressing R. If you don't see the repair
option you will need to do a clean installation. Your version
of windows may have been damaged in a way that it cannot carry
out a repair.

5. Setup will then copy the files it needs to the hard drive and
reboot the computer. A message will come up asking you if you
want to boot from the cd, don't press any keys and just let
the timer run out. The set up will continue and look like is
doing a clean install but all of your applications and
settings will be intact when it finished.

An important note is to not activate your windows over the
internet right away. Always enable the XP firewall to protect
yourself.


>>>>>>>>>>>>>System Recovery<<<<<<<<<<<<<<<<<<<<<<
If you are using Windows XP you could also try a
System Recovery:

Left click on Start
Left click on All Programs
Left click on Accessories
Move mouse pointer over System Tools
Left click on System Restore

Follow the instructions and pick a restore date
when you did not have the problems you are now
having.


>>>>Virus, Malware, Spyware, Trojans Infection<<<<

Try all of these!

Free Security Analyizer:
http://www.microsoft.com/technet/security/tools/mbsa2/default.mspx

Free Anti-virus:
http://free.grisoft.com/doc/1
http://www.avast.com/eng/avast_4_home.html
http://www.free-av.com/
http://www.trendmicro.com/hc_intro/default.asp

Free Online Virus Checks:
http://onlinescan.avast.com/
http://www.avast.com/eng/avast-virus-cleaner.html
http://housecall.trendmicro.com/
http://support.f-secure.com/enu/home/ols.shtml
http://www.kaspersky.com/scanforvirus.html
http://us.mcafee.com/root/mfs/default.asp

Free Anti-Adware/Malware/Spyware protection:
http://free.grisoft.com/doc/1 Get ewido!!!
http://www.safer-networking.org/...
http://www.download.com/ad-aware-se-pers...
http://www.microsoft.com/athome/security...
http://www.superantispyware.com/...

Free Firewall:
http://www.zonelabs.com/store/content/co...
http://www.comodogroup.com/products/pers...
Window XP SP2 Firewall

Free Popup Blockers:
Internet Explorer in windows xp has one builtin.
Firefox has one builtin.

http://toolbar.google.com/
http://toolbar.yahoo.com/

Free Host File Protection:
http://www.mvps.org/winhelp2002/hosts.ht...

>>>>>>>>>>>>>Registry corruption<<<<<<<<<<<<<<<<<<
Free Registry Repair:
http://www.download.com/eusing-free-regi...


>>>>>>>>>>>>>Clean O/S Reinstal<<<<<<<<<<<<<<<<<<<

If all of these software fixes fail you may have
to try to do a complete reinstall of Windows from
your bootable "Recovery" CD's.

Sorry, wish there was an easier answer there isn't
"one size fits all!" Kind of like the car problem
that never shows up when you take it in for repairs.

Have fun but be safe!

Answer 3

Remove the casing and get rid of all the dust using a can of compressed air, worked for me.

Answer 4

Make sure the cpu is seated fully in its socket. All cards, memory etc should be seated correctly. Now try reinstalling your software.

Answer 5

You do a virus check???