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Help......strange boot up problem !!!!

Discussion in 'Hardware' started by debasiskanhu, Dec 2, 2008.

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  1. debasiskanhu

    debasiskanhu Thread Starter

    Dec 2, 2008
    My specs : -

    intel pentium d 2.66 ghz

    asus p5n-mx motherboard

    1 x transcend 2 gb ddr2 667 ram

    mercury 8600gt 256 mb gddr3 graphics card

    samsung 160 gb sata ii hard disk
    sony 20x ata/ide dvd writer

    iball 400 watt psu

    intex 600 va ups

    recently i replaced my old motherboard asus p5gz-mx with asus p5n-mx. Everything worked fine for two days when suddenly after pressing the power button, computer did not boot and in turn turned off after 2 - 3 seconds. This problem then occured randomly, i mean after many tries it booted up and everything worked fine. After coming to desktop everything works fine and does not shuts down or restart on its own. Thinking it of bios problem i flashed the bios to the newest version available for the board from asus website. But in vain the problem persisted. I checked all my connections, took out my ram and cleaned it but it did not solve the problem. So decided to take my psu to iball service centre for checking it. They repaired it but still the problem persisted. Then i decided to replace it with a new psu because it had warranty but still my pc does not startup at one try. This problem is very random. I have tried to connect directly to power supply without connecting to the ups but still the problem continues. I have also noticed that the time when i push my power button my processor fan responds and rotates for that 2-3 seconds time span. Now i am confused..........don't know which component of my pc is damaged. Kindly help me out............shall be very grateful to any suggestions or tips. Thank you.
  2. Danielvt


    Jul 17, 2008
    Hello mate, when you changed your Motherboard i'm olmost surdent that you didn't put in your CPU correctly, because it's a LGA775 socket which i also have i know (because i tryed the exact same thing as you are experiensing now) that it is because one or more of your locking sticks on your CPU cooling fan isn't plugged right..and the reason for it comming some days after is because it might have felt out..go open your case and check the CPU fan is plugged right the Motherboard has small sensors checking it is plugged right and it turns off if it isn't..remember cooling paste when you have checked because the paste will break when u change.. if you are having more problems please just ask again :)

    - Daniel
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