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The computer green light comes on and then nothing happens. Have disconnected the power supply tried another power supply nothing. Tried connecting another monitor. Monitor screen says no signal. Can you help

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  • kmarrow29 Dec 10, 2009

    No the operating system does not load.

  • kmarrow29 Dec 10, 2009

    Did all of that same thing happens

  • kmarrow29 Dec 10, 2009

    removed a replaced memory modules . Get a beep then nothing

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Does your computer seem to load the operating system but not displaying anything on the monitor?

Posted on Dec 10, 2009

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  • Mohamed Omran Dec 10, 2009

    Try to re-seat the main system components, especially memory modules, video card, & any other cards installed in the PCI slots on the motherboard.
    You can also clean the contacts of these components as well as the PCI slots by using a non-oily contact cleaner, & leaving them for 15-20 minutes to dry before re-installing them back & powering up the computer.

    Also, notice if you get any beeps when powering up the computer.
    Please let me know of the outcome so that I could follow up with you towards the solution of this problem.

  • Mohamed Omran Dec 10, 2009

    Try removing the memory modules from the computer & power it up. Notice if you will get any beeps.
    Then, power it down, replace back the memory modules, remove the display card, power the computer up again & notice if you will get any beeps.
    Keep me updated.

  • Mohamed Omran Dec 10, 2009

    This means that your motherboard's BIOS is fine.
    Most probably, one of the expansion cards installed into the PCI slots on your motherboard is defective.
    Remove these cards one-by-one, powering up the computer each time to see if it will work. Once the computer works, you will know the defective card.

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Problem: Your motherboard circuit has been cut.

Causes: Power disconnected during operation. Power outage or short in the surge protector.

Symptoms: Flashing green light on both motherboard and power supply. System will not power on.

Solution:

Step 1: Ensure that both the power supply and the motherboard lights are flashing green, not solid or off.
Step 2: While the power is on, disconnect the power supply from the motherboard. This connection is the largest of the connections and should be listed as the 'P1' or 'Primary' power connection.

Step 3: Wait until the green light on the motherboard stops flashing and check to ensure that the green light on the power supply is now solid. If it is not solid, disconnect the power to the power supply and wait until the light turns off completely. Then reconnect, it should be solid now.

Step 4: While the power is on, reconnect the P1 connection to the motherboard and you should now see that the light on the motherboard is solid.

Step 5: Power on your PC. The problem should not persist.

Warnings: If the power supply light remains flashing after you have restored power to it while it is disconnected from the motherboard, it may be a system failure in the power supply itself requiring replacement. Always be careful when working with an active or live power machine.

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