Computer not turning on... at all

By swampymar5h
Jun 23, 2009
  1. Hi,
    I built a computer a few months ago. It has been working fine until one morning I tried to turn it on and the lights ont the front (decorative not system lights) flicker on for a split second and then turns off, the case fans and graphics card fan also move for a split second then stop.
    I then have to pull the plug out of the power supply then put it back in and the same thing happens again.
    I have tried taking all the components out (and unplugging all wires). Nothing. I even removed the cpu cooler and cpu but still nothing. i have tried clearing the CMOS on the motherboard. I think the motherboard may be faulty.

    Any othe ideas/questions


    LG W2284F 22" Widescreen TFT Monitor
    Asus M4A79 Deluxe AMD 790FX Socket AM2+ Motherboard
    AMD Phenom Quad 9950 2.6Ghz CPU
    Windows Vista Home Premium 64bit
    nVidia GE Force 9800GT 1024mb PCI-E
    500GB Seagate Barracuda SATA2 16MB ST3500418AS
    OCZ 4GB DDR2 Gold Dual Channel
    Razer Diamondback 3G Gamers Mouse
    Sony DRU-8605 22x DVDRW Retail Kit - SATA
    Wireless N PCI Adapter
    Antec 120mm SmartCool Fan With Thermal Sensor

    I also have another computer, virtually identical that works fine, the only difference is that the ram is OCZ 4GB PC2-8500 Reaper HPC, the HDD is 1TB Western Digital Green Power SATA2 32mb HDD and its running vista ultimate 64-bit and also has a built in Sony Blu-Ray writer
  2. snowchick7669

    snowchick7669 TS Maniac Posts: 660

    Hi swampymar5h,

    Compare this list of no POST troubleshooting with what you have already done.

    Are the parts still under warranty?
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