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Windows not loading and monitor not switching on

Actually when i switch on my computer...only green light lights up not the red one which shows its loading..... and after a while cpu goes off without switching on the monitor...........
and wen for the second time i switch the cpu on... a special kind of sound comes out from it....and again the same procedure continues.... "please help me"

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Usualy the red light is the LED for the harddrive. Have you removed the hardrive and replaced it? Is there a reason that maby the power connector is not attached. Also, Is this computer a privately built pc or is a general manufacturer, like Hp, Dell Compaq etc. Also, If the battery on the motherboard has gone south then the bios setup setting will not be saved and the machine would not know how to boot. If the drives are all connected correctly, when you first boot the machine start tapping the del button. Depending on the Mfr, For some Hp's you need to tap the f1 key, there should be a message during the first part of the boot where it says, "To enter setup hit del, or F1 or etc." After you are in the blue screen of the bios, look for a message that says enter default settings. Hit that key, then F10 to save, exit, and boot. If this fixes the problem, then you will see the red LED for the hard drive illuminate and if the hard drive is intact with the OS then it should boot up. If it does boot up, after you are finished for the day, shut your system off as you usually would. The next time that you boot your system, if you have to enter the bios setup and enter the default setting again, then more than likely it is the motherboard battery. It is a bit difficult to diagnose something like this on the cuff. There are other conditions that can cause this like a damaged motherboard, bad memory, jumpers incorrectly set on the drives or motherboard just to mention a few. Hopefully this can be a place to start anyway.

Regards, Mike

Posted on Jan 19, 2009

  • Mike Hammond
    Mike Hammond Jan 19, 2009

    Follow-up.... from above.....Does you PC have onboard video or does it have a separate video card? Check and make sure these connections are good and tight. Not just on the back of the pc but on the back of the monitor also. What type of monitor are you using? If you have upgraded monitors from a CRT to a LCD then you will need to have enough video RAM to push that monitor or it will not display. I have found that even with the 15 to 17 inch low res LCD monitors that you need a minimum of 64 MB of Video RAM to drive that LCD monitor. The computer must get the video working before the rest of the machine can continue in the boot up sequence.



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