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No signal on monitor when powered up 3 long beeps

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  • audasfl Dec 30, 2008

    yes everything is plugged in correctly and the monitor says no signal this is on a previously working computer *at least till this point*

    (ive read on different systems the beeps mean certain things, )


  • audasfl Dec 30, 2008

    no changes to the computer have been made ,

  • audasfl Dec 31, 2008

    ok finally got it to work ....had to take out battery and memory then put back in ....unhooked monitor for the billionth time hooked to a new monitor then back again now its working yeahhhh ty everyone for your help

  • mwit465
    mwit465 May 11, 2010

    Hi there;\

    I'll attempt to help you. You say you have no signal on your monitor after powering up. Beeps might mean hardware error. Is the monitor plugged in correctly as well as plugged in to power?

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Snowchick is on the right track. The monitor is working and the message "no signal" is the monitor's way of telling you it is working, but the computer is not sending any video to display.

Before opening the box, try removing every single connection to the computer except power supply and monitor only. This eliminates all external sources of mechanical failure.

If you suddenly get a display, add the items one by one until you have a problem again. The last item added will be your culprit.

Remember, power down between unplugging and plugging. Only USB devices are safe to plug in under power on conditions.

If that does not help, unplug power to computer, open case and reseat (remove and replace) your memory. If you have more than one, try with only one and swap them out one by one to see if one of them will work. It would not be a bad idea to have someone knowledgeable help with the reseating process.

Another step you can take if the RAM makes no difference is to remove any other expansion cards (modem, sound card, etc.) and try again. Most E-machines have integrated video, sound and NIC so there may be nothing much to remove. You can also try disconnecting the cables to all of the drives (hard drive, CD, floppy, etc.).

Let me know if you need further support.

Honest1abe

Posted on Dec 30, 2008

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Ok if everything is plugged in correctly have you made any other changes to this computer configuration? Have you also tried re-booting with the new monitor installed?

Posted on Dec 30, 2008

  • mwit465
    mwit465 Dec 30, 2008

    Ok if no other changes have been made to your system, either the monitor is plugged in wrong, (or not completly), not turned on, (of course you've checked that), or is not compatible somehow.

    Give me the details on the computer and monitor. model, age, etc.

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Hey there,

Beeps generally point to RAM, this would also be why the monitor has no signal as the computer wouldn't be POSTing. I'd suggest reslotting the RAM and if this doesn't work then swap out the stick with a new one :)

Posted on Dec 30, 2008

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refer here
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