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Turn Computer On, then turns off, then on. Repeats cycle.

By RTK12
May 13, 2014
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  1. Background: The desktop is about 14 years old. I look at old files from time to time and it has worked fine (but very slow) up until the other day. I can get into BIOS, which I reset to the default, but not into safe mode.

    When I turn the computer on it starts loading as usual. The Windows logo comes up then it goes into a black screen while it loads. After about a minute, when it should start populating the icons it appears to shut off and then immediately turn on again and repeats this cycle over and over. Any ideas what it could be?
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    Power supply...
  3. RTK12

    RTK12 Newcomer, in training Topic Starter

    I tested the power supply with the test switch and it appeared to work. Is there anything else it could be? If so how to I solve the problem?
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    14 years old... Power supply test switches only tell you that the power supply is plugged in. Is it also 14 years old? Anything can be bad... Are you running XP?
  5. RTK12

    RTK12 Newcomer, in training Topic Starter

    I do not know if it's XP or not. The computer was purchased in 2000, 2001 or 2002. It was working fine (except very slow) up until recently. What might be the most likely problem(s)?
  6. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

  7. RTK12

    RTK12 Newcomer, in training Topic Starter

    I checked the capacitors and they all look ok. When the problem started I noticed the power supply fan was running slow upon start up. I cleaned off the dust and now it's moving faster. It seems like there's not enough power to fully boot it into Windows but this is only my guess as someone who knows almost nothing about how a computer works. Any other ideas?
  8. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    I'm afraid it may be time to retire this computer and get a little newer one
  9. RTK12

    RTK12 Newcomer, in training Topic Starter

    The problem is I have files in this old computer that I would like to have. Is there any easy way of retrieving them?
  10. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    You can use a USB flash drive, or just pull the hard drive out of the old computer and use an external USB hard drive enclosure to connect the old hard drive to the new computer to transfer the precious files to...
    learninmypc likes this.
  11. RTK12

    RTK12 Newcomer, in training Topic Starter

    With a USB flash drive don't I have to get into Windows? If not how do I transfer the files to the flash drive?
     
  12. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    When using a flash drive you have to be able to get into Windows. It might be wise to get help from someone that knows computers close to your location
  13. Benmar

    Benmar Newcomer, in training Posts: 53

    Try to change the power supply,,,
  14. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,800   +158

    Sound like a good thing to try...
  15. Cobalt006

    Cobalt006 TechSpot Maniac Posts: 1,799   +175


    I would say you answered your own thread here. Tmagic is right. Replace the power supply. See if a friend or some has a old working PS. This way you can test and see if this solves your problem. Or have a friend who knows about computers do this for you.
  16. riyan harris

    riyan harris Newcomer, in training

    There is a way to test for a dead CPU and your system is not showing the symptoms of it. It is showing the symptom of a dying motherboard though.
    You have tried everything else and your motherboard is the only thing left...
    but there is 1 thing left to try. remove the hard disc. boot the machine and if you get to BIOS then its the hard disc. if it repeats the same cycle then you know for sure the motherboard is the issue


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