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Have compaq c503wm laptop push power button front light shows charging, after pushing power button about 2-3 seconds power button starts blinking and power light on front blinks. nothing starts to boot. (replaced Motherboard, CPU, Power Button, Mainboard AC power Cable new cables with power button, AC adapter also. Did exact same thing with old mainboard and other parts Won't boot when you push power either with battery in or out power button just flashes continously hard drive light flickers 2-3 times then goes out and just flashing power light on button and front panel left . Battery shows charging when battery is installed replaced cmos battery also. Comments: Sep 30, 2009 - Thanks for the try, tried external with both lcd pluged in and unpluged also forgot to put in post also changed memory

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  • bestway97503 Sep 30, 2009

    trying to fix the problem of coming on frist should come to cmos screen at least won't come on with lcd or external monitor power button just starts flashing

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Maybe is the hard disk malfunction

Posted on Sep 30, 2009

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