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My computer comes on, but the monitor only the power light comes on. It sayes no input signal. Took the monitor and power cord to a friends house and they worked fine.

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  • Anonymous Mar 25, 2014

    How can i tell if my monitor is missing a cord if the red power button is lit up or how many cords does it need

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Well its either the motherboard or the video card issue.

you will need to replace one of those and most likely will be the motherboard

Posted on Sep 09, 2008

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3 Answers

Got struck by lightning via the modem which was destroyed. The port that accepts the ethernet cable stays on as soon as the computer is plugged in. Power comes on but no input to the monitor.


The modem might have been obviously destroyed but so is the rest of the computer. The connection that you are talking about is the NIC and it is showing signs that it was damaged by the surge also. That means all the delicate electronic parts in the computer are toast. Time for a new computer.

Aug 24, 2015 | Sony VAIO PCV-RS710GX PC Desktop

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Why screen not coming on


Here's some tricks I would try...
1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or orange or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your display on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.

Jul 06, 2014 | Compaq Presario S6700NX (DQ182A#ABA) PC...

1 Answer

Green power light comes on goes off then on again stays solid, moniter says no signal, mouse lights up, and three red lights on key board flash then nothing why?


If the monitor power light is on or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor needs replaced.

Nov 21, 2012 | eMachines EL1852G-52W

1 Answer

HP w2207 no vga input signal, no dvi input signal monitor goes to sleep


There is no signal coming from your PC.
excuse some of the solutions as sounding dumb, but we have to explore all possibilities.

Check the power cable going into the computer
Check the power input disconnect switch on the back of the power supply and make sure it is on
If the pc is plugged into a power bar, make sure it is turned on and the breaker isn't tripped
press power on the PC and make sure the lights are coming on.

now for the solutions that may actually help.

disconnect the power from the PC
if the video is on a card, remove and re-seat the video card
hook the power back up, connect the monitor and try again.

the CMOS on the computer may need to be reset.
I hate totally clearing the CMOS, so what I usually do is remove 1 stick of ram and power up. If the system is alive again, power down, put the RAM back in and power back up.
If that doesn't work, turn the system off, put the CMOS jumper to the CLEAR position for 15 seconds, put it back to the Normal position and then power back up.

Basically, if the monitor works on your friends system but not on yours, the the problem is your system, not the monitor (assuming it isn't working fine til it gets into windows...if that's the problem, you have a driver or configuration problem)

Jun 10, 2012 | HP PC Desktops

1 Answer

Dell xp620 is not working


No Signa where? No Wireless Signal? Or is the monitor saying No Signal?

If you are saying the Monitor says No Signal, then more than likely the Video Card in the computer is bad. Try connecting another monitor to the computer. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the computer. If the Borrowed monitor does the same and displays No Signal, then your video card is bad. If the Borrowed monitor displays and works ok, then your original monitor is bad.

May 23, 2012 | PC Desktops

1 Answer

On no signal


If you are saying the Monitor says No Signal, then more than likely the Video Card in the computer is bad. Try connecting another monitor to the computer. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the computer. If the Borrowed monitor does the same and displays No Signal, then your video card is bad. If the Borrowed monitor displays and works ok, then your original monitor is bad.

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2 Answers

Power to house went out during area power outage. Everything came back on except the computer? Tries to restart by holding power switch in, unplugged and replugged power cord - no response on monitor. ...


When the power is returned after a power outage it can cause a power surge and damage electronic equipment such as a computer. This is a reason to install a surge protection power board and connect your computer equipment to a surge protection board.
The switch mode power supply may be faulty and replacing it may get your computer operating again.
If you cannot DIY then ask a friend or take it to a computer repair shop.

Jul 14, 2011 | HP Pavillion s7420n PC Desktop

1 Answer

When I turn on computer, the blue light comes on and the computer makes sounds as if it is starting and the monitor light is yellow. If I turn the monitor off and then back on, the screen says something...


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.

Feb 26, 2010 | E-Machines eMachines Desktop PC

1 Answer

Computer turns on and fan starts running, but the monitor has nothing on it. All the cords are pluged in.


unplug monitor power cord wait for 5 minutes then turn computer off and re hook up monitor and computer if the moniter does not come on then yo have a defective video card, but you can test it with another monitor to be sure. normally if the monitor was bad it would say no signal.

Feb 05, 2010 | Dell Optiplex 740 Desktop Desktop Computer...

1 Answer

Monitor does not come on when powered on, it says no input signal


Check your video card. It sounds like it has went bad. Hope this helps.

Jan 08, 2009 | Gateway 420GR PC Desktop

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