Having problems with your E-Machines eMachines Desktop PC ?

No signal on monitor when powered up 3 long beeps


Answers :

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
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?
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