Why is this old PC restarting without errors?

Gooner74 September 2, 2011

I’ve been trying to resolve an issue with an old PC, which keeps restarting at random times. I’ve noticed the power lead is 250V and the PSU is 240V. Could this cause the PC to restart without warning?

  1. Shoaibshamsuddin05
    September 6, 2011 at 7:13 pm

    May Be Problem Power supply  Change U r Power Supply

  2. James Bruce
    September 5, 2011 at 8:48 am

    Just to add, the power lead is not the issue. 250~240v is one standard, with 100-110v being the other. 

  3. Aibek
    September 4, 2011 at 7:42 am

    Overheating is probably the main reason for random restarts. Check the BIOS settings (click F2 button a few times right after the computer is turned on) and see what are the temprature settings there, if any. It's probably somewhere around 65-70 degrees. Try raising it to 75 and see if the issue persists. Along with this try removing dust from interirors. Make sure to turn off your PC and inplug it before attempting that.

    September 4, 2011 at 2:06 am

    Hello, best option would be to disable automatic restart.  To do so, follow the next steps:

    -- click on start + Pause/Break (both at same time)
    -- click on the advanced tab
    -- under startup and recovery select settings
    -- under system failure, make sure to uncheck automatic restart
    -- click on ok, and then  ok.

    What this does, is when your computer tries to restart next time, it will give you a blue screen with an error.  Make sure to record/type what the error is so that you can research it at a later time. 

    When your computer has a PSU with not enough power it could cause restarts, but the most likely cause is overheating.  What could end up happening though, is after so many restart you might end up bricking your motherboard and any other components in your computer.  You could try getting a new PSU with at least 450 w, and see if that fixes your problem.  Take into consideration that the more components you have in your computer, the more power you need.

  5. Jeffery Fabish
    September 3, 2011 at 8:13 am

    It could very well be a bad PSU or overheating. Does it do this randomly? To test this theory, read this article.

    To check if it's overheating install CoreTemp and run it. Check the gauges every now and again and make sure it never exceeds the advised maximum temperature.

    It may also be helpful to dig around the Event Log to see what happened at the time of the random restart.