PC powering on but will not boot

By Mr_Sam
Jun 12, 2009
  1. Ok,
    While i was on my pc it cut off suddenly. I powered it on again and it booted into the screen where all the devices are listed but then shut off. It did this a few times before i shut it off and unplugged it from the power. The next morning when i came to power it on it didnt boot at all. The cpu fan spins and so does the fan on the power supply and the power led come on but thats it. I have tested the graphics card in another pc and it worked fine. I cannot test the RAM as it is ddr althought it has done the same thing with 4 different sticks. When i boot without the ram or anything except the cpu connected i dont get the beeps to say there is no memory. I think this is a faulty motherboard although i wanted to ask as i have little experience with computers. Any help would be greatly appreiciated.
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    I would say the motherboard has died
  3. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

  4. Mr_Sam

    Mr_Sam TS Rookie Topic Starter

    Ok thanks for the replys.
    I have tested the power supply and it still does not work. It is deffinately the motherboard or the pocessor as i get no POST beeps with memory removed however the relays next to the processor socket click madly. I think i may have blown the cpu if it wasnt already dead though as while testing i ran it without a heatsink for around 15 seconds and it was hot enough to burn my hand.
    Any other advice is greatly appreiciated,
  5. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    15 seconds is enought to fry the CPU... Replace the motherboard and CPU this time
  6. Mr_Sam

    Mr_Sam TS Rookie Topic Starter

    Is it possible that it could just be the CPU which is malfunctioning as when i power the pc up with the cpu in the front led does not come on whereas when i take the cpu out it lights up.
  7. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Yes that is possible... replace the CPU, and hopefully all will be ok
  8. Mr_Sam

    Mr_Sam TS Rookie Topic Starter

    I am going to order a new CPU, Thank you for your help.
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