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How-To Geek Forums » Windows Vista

Computer turning off?

(7 posts)
  • Started 4 months ago by GaardCeteru
  • Latest reply from ispalten
  • Topic Viewed 494 times

GaardCeteru
GaardCeteru
Posts: 135

Recently my computer has begun restarting itself all of a sudden, at first it would just shut down after some 6 or 7, perhaps 8 hours of being on, I´d wait a little and turn it on again, and keep on doing my stuff without problem, but recently.. from about a week ago ´till today it has shut down and restarted once and over again every other two days; id turn it off (from switch) and come back a few hours and turn it on, and it worked perfectly fine again.

The thing is about an hour ago it restarted and restarted again after a few minutes, I thought it could be a windows 7 issue because a friend of mine had the same problem a few weeks ago, so after it restarted I decided to boot into XP, but it restarted itself again after a few minutes just as XP was starting up, and restarted again, i decided to run a test prompt that appeared saying it could determine wether the problem was hardware or software and what was it, yet it restarted again while scanning so I just decided to shut it down manually and post my question here. The question is: What could it be? Make your bets!

Posted 4 months ago #
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madjack1987
Posts: 32

This sounds like it could be hardware if it is random and does it with both versions of windows you have.

I'll give you a list of stuff i'd try

Have you tried flashing your BIOS? If your not sure how to do it then have a look on your Motherboard manufactures website (what make is it btw) and there should be a guide.

Have you tried booting from a usb / live cd for a while to prove its not your HDD?

Also have you tried running chkdsk and memtest86+ to look for other faults in your HDD /RAM?

If you have any Graphics or Sound cards (or any other hardware) that have been installed, try taking them out and run from the intergrated stuff on the motherboard to prove it's not them thats causing it.

That should keep you busy for a while :)

Please post back if you find anything.

Posted 4 months ago #
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ProstheticHead
ProstheticHead
Posts: 446

DO NOT FLASH BIOS!!! If your system cuts out during the flash, it's game over.

Does the system feel warm? It sounds alot like a gradual buildup of heat causing a shutdown, I'd run speedfan and check your temps.

Posted 4 months ago #
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baldeguy56
baldeguy56
Posts: 452

GaardCeteru, hi. Have you tried to boot into safemode? Do you have access to a computer that can burn images to CD's such as Nero. Is your system old or new? Of consideration, have you made any changes as in driver changes, new hardware installed or have deleted any files recently? Sorry for all the questions, but we need to narrow it down some more as madjack1987 has you started in. After you are done with those post us back and we'll get you more towards what's causing this loop...Garry

Posted 4 months ago #
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ispalten
Posts: 402

How is your power? Are you on a UPS (Uninteruptable Power Supply)? Power fluctuations can do that, and depending on system sensitivity, it could drop power. Do lights dim when this happens, if so, power is fluctuating in the house. Power line interference could also do this, like a large motor startup up nearby.

Do check the BIOS as well. There should be a page/tab on what to do if power is lost. Probably set to RESTART now. Change it to not do that. That way you'll be able to tell if it is power or something within Windows restarting the system.

Also, under SYSTEM PROPERTIES there is an ADVANCED tab that has STARTUP AND RECOVERY on the bottom, check those settings to see what the system does on a SYSTEM FAILURE. Uncheck automatic restart as it might be restarting too fast to see the BSOD even? Enable the dump and Event Log as well if not on. If on, check for the dump file and event log for clues to the restart?

One thing though, and you didn't mention this? Normally if a system were to be shut-down improperly, on re-boot you'd see a black screen with white letters telling you it was shutdown improperly and asking what you'd want to do? Are you seeing this? If not, I suspect 'something' is doing the shutdown on you. I'd suspect a virus (I don't know of any that do this), a rogue program that does a shutdown when complete, A scheduled task that shuts down the system, or quite possibly the system getting some h/w notice that it is either failing or the CPU sensing overheating condition?

It might be worthwhile opening the case, cleaning out all the dust and re-seating all the cards and check all connections.

Irv S.

Posted 4 months ago #
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GaardCeteru
GaardCeteru
Posts: 135

Sorry for being abscent for so long, my computer is kinda custom made has a 500GB Hitachi SATA hard drive, 2GB ram (1GB ram x2 slots), a Biostar nVidia 9400 GT GeForce video card and 610w power supply, intel core 2 duo processor and respective G31D-M7 motherboard; so yes it´s pretty much new, the hard drive, processor and ram might be the oldest, I bought the computer in 2008´s january and this year´s april the motherboard it had fried the integrated videocard so I replaced the motherboard, the videocard and the power supply.

At first I believed it was my ups because it turned the whole system down and it would stay that way, sometimes while doing something (playing warcraft or talking to someone on msn) and other times just a few minutes after coming from being abscent from some 30-60 minutes and without having any application opened; so I decided to switch it for another UPS (although not a better one in my opinion, but I had no other to try on). It stopped giving me trouble for a while but then it started failing again, only instead of turning off completely it would restart; the first time it happened I was in windows 7 trying to attach open source data (from Open Office´s Word) to an email and had the file opened when it restarted, so I thought it could be due to open office being running while trying to attach data; I booted into Win7 and tried again but it restarted while attaching the document this time not while running the other aplication, so i thought it was a Win 7 issue and booted into XP and managed to send it.

About 2-4 days later I experienced the same restart problem again in win 7 and I had been told it could be due to Win 7 since it´s still in beta state (alhough it´s the RC I dont discard the possibility), anyway II tried again to boot into windows 7 and got a sreen where it said it could be due to hardware or software error and that I could either run a test or start normally, start in safe mode, etc. I chose the test but it restarted in the middle of it so I booted into XP and just after a few moments it restarted again while still begining to run startup programs, and all went downhill from there, I tried to boot again into XP but it restarted even while on the bootscreen so I decided to simply shut it down from the on/off button before the situation got worse.

A few days after I started up my computer and got to the screen in win7 that recommended the test, since it was freshly started it ran the test without problem but showed no problem fix only the possibility to send a notification to windows, it showed the same restart problem only after some 4 hours later again and I ended up turning it off from the button and took it for a check. Today I got the result: No restart, although it has been on for full days, I´ll pick it up tomoroww, I dont know what to think, I still believe it could be the power supply wich heatsand Im unsure about the power lines, I think I will try taking off the video card and later try a new power supply and another (new) UPS, I guess I´ll let you know later how it goes.

Posted 3 months ago #
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ispalten
Posts: 402

The UPS is a possibility, but they normally have the capability to SHUTDOWN the system when they run out of battery power. Does yours and have you installed the s/w to do that?

If you did have the s/w running, it is highly unlikely the UPS is the cause?

It is possible still as your draw of power is not constant, it fluctuates depending on what is going on. For instance if you have a disk go from 'sleep' state, that is powered off to using it, the power consumption will increase. Same for DVD/CD drives, of a monitor awaking from sleep state. This could cause the UPS to be underpowered depending on the spike and an instant off.

What size PSU and UPS do you have?

What exactly was on the BSOD's you had gotten?

Check ALL card seatings and cable to make sure they are tight as well. This includes the CPU and thermal connections.

Irv S.

Posted 3 months ago #
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