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Author Topic: PC switches off itself  (Read 3049 times)

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MICMAN888

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    PC switches off itself
    « on: July 31, 2007, 12:51:06 PM »
    I really hope someone can help me here as i am at my wits end.
    I installed a new MoBo + HDD and DVD drive , to begin with I had an error message
    "NTLDR" is missing press ctrl , alt + delete to restart. So after some advice from another post I stripped it down and re-installed everything again and hey PRESTO I no longer get the error message but my problem is that the computer still switches off after about a minute but previously before i stripped it down the computer was switching off after about 30  seconds.I don't even get a chance to install my XP O/S
    I have checked all cables and connectors are secure to no avail.The computer will start to install the O/S and then cut off after about a minute.

       Any help would be most appreciated
       Many thanks in advance
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    Light travels faster than sound..that's why some people may appear bright until you hear them speak.

    beanhead07



      Hopeful
      Re: PC switches off itself
      « Reply #1 on: July 31, 2007, 12:55:09 PM »
      Reseat the memory and make sure it's in there good. Then try running a memory test to see if one of your memory modules is bad.
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      pinewoody

      • Guest
      Re: PC switches off itself
      « Reply #2 on: July 31, 2007, 01:14:48 PM »
      The power supply could be bad.
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      MICMAN888

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        Re: PC switches off itself
        « Reply #3 on: July 31, 2007, 01:56:11 PM »
        I tried removing the ram (i've got 2 sticks of 1Gig ram brand new - team elite gaming ram) and put 1 in at a time and in the different banks to no avail and the PSU is only a couple of months old.
        There was no problems with the computer switching off before the new hardware was installed.
                                   
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        Light travels faster than sound..that's why some people may appear bright until you hear them speak.

        Fed

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          Re: PC switches off itself
          « Reply #4 on: July 31, 2007, 03:23:53 PM »
          Check your cpu fan, heat sink fitment & thermal paste.
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          MICMAN888

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            Re: PC switches off itself
            « Reply #5 on: July 31, 2007, 05:37:15 PM »
            Quote from: Fed on July 31, 2007, 03:23:53 PM
            Check your cpu fan, heat sink fitment & thermal paste.
            just tried that and got the original message " NTLDR is missing press ctrl alt + delete to restart then it just swwitched off again so I left it switched off for about half an hour and tried switching it on again and it started the install for about 45 seconds and then switched itself off AGAIN!!!
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            Light travels faster than sound..that's why some people may appear bright until you hear them speak.

            Fed

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              Re: PC switches off itself
              « Reply #6 on: July 31, 2007, 05:53:09 PM »
              Go into BIOS and check your temps, stay there for a while and see if it shuts down.
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              MICMAN888

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                Re: PC switches off itself
                « Reply #7 on: July 31, 2007, 09:09:18 PM »
                Quote from: Fed on July 31, 2007, 05:53:09 PM
                Go into BIOS and check your temps, stay there for a while and see if it shuts down.
                I tried what you suggested and i have noticed that when it starts up it runs about 73 degrees and it will shut down about 96 degrees , so I think you have hit the jackpot
                the CPU is totally goosed
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                Light travels faster than sound..that's why some people may appear bright until you hear them speak.

                Fed

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                  Re: PC switches off itself
                  « Reply #8 on: August 01, 2007, 12:55:17 AM »
                  Quote from: Fed on July 31, 2007, 03:23:53 PM
                  Check your cpu fan, heat sink fitment & thermal paste.

                  Are those temps F or C?
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                  MICMAN888

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                    Re: PC switches off itself
                    « Reply #9 on: August 02, 2007, 07:55:59 PM »
                    Thanx every1 for all the advice
                    I finally stripped  the cpu out but I found that the heatsink was a bit loose so i reinstalled everything and everything is running perfect!!!!!
                    so once again cheers every1
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                    Light travels faster than sound..that's why some people may appear bright until you hear them speak.

                    Fed

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                      Re: PC switches off itself
                      « Reply #10 on: August 02, 2007, 08:07:36 PM »
                      Thanks for the feedback Micman, call in anytime.
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