I have a similar problem with my emachine. It is connected to a monitor and it comes on and makes sounds and lights up but, still I get no picture. I know that the hard drive is fine and I have tried a new monitor, added a new video card and still nothing. I would love to get a helping hand with this cause I would love to keep this PC.
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Usually when you hear long beeps coming from your computer it telling you that there is hardware loose . You may have knocked something loose. Check cd roms , ports and cards , memory to make sure they are fitted in correctly . good luck
1) Please make sure the monitor is on and securely plugged in both the monitor and the back of the computer.
2) make sure that you are using the right input in the back of your computer for your monitor as some computers have an internal video card and external. Please test the monitor on both connections.
3)If possible please test the monitor with a different computer to make sure the monitor itself is functioning.
the screen is blank? when it is like this and you pree number lock or caps lock, will it turn those lights on and off on the keyboard? If so, I would just check the monitor connection, those connections can get loose, get dust in them, or ever have the connectors wear out after a long life.
No input usually indicates the machine is having trouble getting a video signal from the monitor. Check and make sure the monitor cable is connected properly. If you have another monitor also test the machine with another monitor.
It sounds as if you are missing the power cord for the monitor. If the cord did not come with your monitor/PC, you can pick one up at any Radio Shack or electronics store. If you could forward me your eMachine model number as well as the monitor model number, I will see if I can better solve this for you without you having to spend anymore money.
First make sure the power cord is plugged in both ends (in the wall and in the monitor). When the computer is turned on, it should run a power on-self test and then beep. The monitor light should be green and then the Windows splash screen will display. If your computer starts up but the video fails, then the monitor light will turn yellow. A monitor light that just flickers and goes off is probably an indication that the monitor has failed. I usually try to hook up another monitor (borrow it from a friend) just to be sure that the computer is working.
CANNOT COMPUTE!!!! NEED MORE DATA! Is your monitor the problem or the computer? Try connecting the monitor to another computer. You can also try connecting a laptop with an external video adaptor to the monitor to test it.
Lets start with the basics. Does the monitor have power, do you get a light on the monitor when you try to turn it on? If you do then do you get any lights on the computer when you try to turn it on? If the monitor has no lights on it check the power connections and if still no lights then try plugging it into a different outlet preferably directly into the wall. If still nothing then the monitor is bad. If the computer has no lights but the monitor does once again try plugging it in to a different outlet and if that does not work there is a problem with the computer most likely the power supply, CPU, or motherboard. If both have lights but you get no display on the monitor then check the connection between the monitor and the computer. if the connection is good (I would ***** in the screws on the sides of the connectors just to make sure there is a good connection) then there could be a problem with your video card.