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No image input and pc makes weird sounds on start up

Hey guys, please help me out on this. For some reason, my pc wont start up anymore. When I press the power button I get a different sound than normally. Now I hear one long tone and then 2 short ones. After that, I can see the floppy drive running some test, like normally, but nothing else happens. There isnt even any HD activity.

Solutions are well appreciated. I need my pc working again for my graduation!!! Thank you
At startup, monitor light is orange - no image on monitor -, computer sounds as though its loading but after a few minutes, it screams a series of beeps. Was working until shutdown and when restarted, the above mentioned happens. HELP!
Have chaged out processor and no change. Will try replacing RAM sticks next.

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  • Catharine Norris
    Catharine Norris Nov 01, 2008

    I have reinstalled all items currently installed on computer. Even going a step further by replace both the RAM Sticks with another set as well as to change out the processer with a different one. And the only change has been that the beeping noises have stopped. However, the I still have the amber LED lit up on the monitor and nothing else. Not even Bios comes up. Nothing is available. I can only guess as to whether the computer is trying to boot or not. When I feel of the HD @ startup, It feels like its moving, then Nothing still! I am very baffelled by this problem. Any other possibilities?


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Remove & reinstall all the memory sticks (reseat). If that did not fix the problem, remove all the memory sticks and reinstall them one at a time to test them in an effort to determine if one of them has gone bad. Use this same methodology to test all of your device cards.

Check to make sure the CPU fan wire is connected to the fan header on the motherboard and that the fan is operational. Most motherboards (especially AMD) require the CPU fan to be operational and connected to the motherboard to avoid frying the CPU. However, this requirement can be disabled in the bios to accomodate CPU fans that do not run off of the motherboard fan header.

Can you get into the bios? If so, I would suspect the CPU and memory are ok. Does the clock have the right time? If the time on the clock is wrong it could indicate your bios settings are not being maintained after you power down and you may need a new CMOS battery.

Usually a beeping motherboard is an indication of a hardware issue. The data on your hard drive is probably intact. If you need to retrieve some files from the drive for your graduation, you can always install the hard drive into a USB external hard drive enclosure and connect it to an oprational computer.

Hope this helps - good luck!

Posted on Nov 01, 2008

  • TF Nov 01, 2008

    Since you have replaced the CPU and memory, I'll assume you have a basic knowledge of computers. Troubleshooting this will have to be a process of deduction. Lets try to at least get to the BIOS by starting from the most basic configuration: CPU, minimal memory, and graphics card.

    If you have a digital camera, take pictures of the wiring to ease reassembly. Otherwise make a detailed drawing or wiring chart.

    As a reminder, make sure you ground yourself to the case; then unplug the power. Disconnect everything from the motherboard. Remove the memory, remove all device cards, disconnect all of the drives, disconnect any case wiring, disconnect any USB or Firewire header wiring, disconnect all fans, and finally disconnect the power supply.

    With everything out of the way, use a can of compressed air and blow the dust offf the motherboard (MB). Then, closely inspect the all the chips and circuitry on the (MB) for any heat discoloration. Usually heat discoloration looks like an area of gradient color change from its center. Try to spin the any fan on the MB with the air to make sure it is not seized. If everything looks good, reconnect the CPU fan to the CPU fan header on the MB.

    Blow out the power supply (PSU) through the grills (you may want to do this outside). Try to spin the PSU fan with the air to make sure it is not seized. Try to smell the PSU for any burnt odors. If it is good, reconnect the PSU to the MB.

    Inspect each memory module, if everything looks good, reinstall. Check your manual for minimal memory configuration. MBs vary, but usually at least bank one must be filled, or it could be banks one and two, or one and three. Check the manual to be sure.

    Blow off and Inspect the graphics card. Try to spin the PSU fan with the air to make sure it is not seized. If it looks good, reinstall.

    Reconnect the monitor and plug in the computer, and turn it on. If it still wont boot, shut it down and swap out the grahics card with one the you know is in working order. If it still wont boot, your MB is probably bad, because everything else has been replaced. You could try to clear the bios as a last resort, but you said the computer suddenly quit working, so this probably wont help.

    It could also be the PSU, but not likely since it powers up. To properly test the PSU a PSU tester is required.

    Good luck!


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