Computer Hope

Hardware => Hardware => Topic started by: sbfjones on March 16, 2008, 09:42:27 AM

Title: System turns itself off
Post by: sbfjones on March 16, 2008, 09:42:27 AM

i have a computer that crashed. i changed the power supply. it started. i was making sure that the system was OK, when the system turned off. it would not power up again. i changed the CPU next. the computer still will not power up. if unplug the computer, after a little bit plug it back in an push the start button the computer will start then turn off. the longer the copmuter is unplugged the longer it will run when it is powered up.

Title: Re: System turns itself off
Post by: Hopester Doofus on March 16, 2008, 11:00:46 AM

Your processor may be overheating. With the cover off, turn on the computer and check the fan above the processor to see if it's spinning.  If it isn't, that's your culprit.

Title: Re: System turns itself off
Post by: sbfjones on March 16, 2008, 05:21:47 PM

thank you for your help. the cpu fan is turning.

Title: Re: System turns itself off
Post by: patio on March 16, 2008, 10:09:56 PM

What do you mean when you say you changed the CPU ? ?
Did you remember to use Thermal Compound in doing this ? ?
What brand/wattage of PSU did you swap in there and was it new or used ? ?

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Title: Re: System turns itself off
Post by: sbfjones on March 17, 2008, 04:25:57 PM

When i changed the CPU i put a back up CPU that i had that is a good one that works with the mother board. an yes i put new thermal grease on the CPU. the power supply is a used on that i have and it has the same spec. an watts that the bad one had.