|Win XP is set by default to automatically Restart when it encounters an unrecoverable error.|
To have XP possibly display an error message you can investigate instead of the computer rebooting:
1. Click Start, and then right-click My Computer.
2. Click Properties.
3. Click the Advanced tab, and then click Settings under Startup and Recovery.
4. Under System failure, click on the small box beside Automatically restart to remove the checkmark.
5. Click OK, and then click OK.
If you then get an error message, look at all of it's details.
If you can't get into Windows or if you can but you can't use it for long enough to do that....
Remove any bootable CDs or DVDs you have in drives.
Boot the computer and starting very early, press F8 repeatedly, do not hold down the key, and when the boot choices menu appears, choose
Disable automatic restart on system failure.
That will attempt to load Windows normally.
It's a one time thing - it only disables Restarting on system failure when you have selected it.
If a blue screen appears it will stay on the screen.
Copy down the things that are unique in the message and post them here.
STOP: 0Xx00000xx (we don't need the stuff in brackets beside that)
There may be a problem file named at the end of the text.
There may be a link to More info or similar - if so, click on it to see if it names a problem file.
There may be a mention of a MINIDUMP file having been made - if so, copy down the name and location of it - you may need to click on a link to find that. That MINIDUMP file can be analyzed.
"well , the screen goes black as if it where shut down although the machine is still running."
If it isn't actually Restarting, if it's only after Windows starts to load that you have no video, that can happen if you have loaded specific video drivers for the video adapter (or if Windows has the drivers for your video adapter built into it and has installed them), but those drivers don't recognize your monitor properly, and sometimes in that case you get no video at all in Windows.
You probably need to load monitor drivers.
For 2000 or XP...
See response 9 here:
Boot into Enable VGA mode.
Note - that's missing this...
Remove any bootable CDs or DVDs you have in drives.
Press F8 repeatedly while booting, don't hold down the key, starting very early in the boot.
When the Windows boot choices menu appears, choose Enable VGA mode. )
Windows Setup, Safe Mode, and Enable VGA mode all use default VGA drivers.
Enable VGA mode loads everything normally except it does not load specific video drivers if they have been installed.
If Enable VGA mode works for video in Windows, but you get no video in Windows when you boot normally, your problem is probably related to the specific video drivers or their recognition of your monitor.
You sometimes cannot un-install specific video drivers in Safe mode, but you can always un-install them in Enable VGA mode.
You cannot change your monitor type or install monitor drivers in Safe mode, but you can in Enable VGA mode.
Safe mode has the same default VGA video mode as Enable VGA mode does,but it also does not load a lot of things that are loaded when you boot normally or boot into Enable VGA mode.
If Windows loads in Safe mode but not in Enable VGA mode, your problem is probably related to something OTHER THAN to the specfic video drivers or their recognition of your monitor, that is not loaded in Safe mode.
Other things that can cause Restarting for no apparent reason but they're usually NOT associated with no video in Windows, only.......
- your power supply is failing
Failing power supplies are common and can cause your symptoms.
Check your PS.
See response 4 in this:
If you can borrow a power supply from another working computer, try connecting that.
If it is failing, you can usually replace it with any decent quality standard sized standard ATX PS with the same capacity or greater.
Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.
Don't buy an el-cheapo (in quality) PS.
See response 3 in this:
Note - I may have mentioned Coolermaster in that - I have recently found some models have only a 1 year warranty, some are known to have premature fan failures, some are known to develop failing electrolytic capacitors.
- If your mboard is not new (usually the mboard is at least 2 years old when this happens)......
Some mboards develop this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - the mboard manufacturer didn't know they were improperly made at the time the mboard was made.
Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .
This was the original bad capacitor problem - has some example pictures.
History of why the exploding capacitors and which mboard makers were affected:
What to look for, mboard symptoms, example pictures:
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
Pictures of blown capacitors, other components, power supplies, fried Athlon cpus, etc.: