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Computer when i turn my computer on i get no signal message

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Could be a loose or bad connection. Check the video cable from your monitor. Make sure there are no bent pins inside the connector too.

Could be a bad video card (or onboard video if it is integrated into the motherboard).

If you have a video card, make sure it is seated securely in the slot.

Posted on Oct 16, 2008

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I have nothing to plug p3 and p4 into when all on no signal


Sometimes if a VGA cable is not screwed into to both your Tower and your Monitor, it can get loose and thus resulting in no signal.
Another cause of a Monitor Displaying the no signal message would be due to the Graphic Card failing, or possibly due to the Graphic Card not correctly being seated.

Other Thoughts
--------------------
Usually P3 and P4 refers to a cable on your power supply that needs to be attach to your motherboard to supply extra power.

Note:
If your P4 cable is not plugged in before turning on your computer, this will also result in your Monitor displaying the no signal message.
Keep in mind though, if your computer has not been opened or is not a custom built PC, you should not have to worry about such issues as your P4 cable should in theory be connected. However I guess safely checking won't hurt anyone.

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1 Answer

How do I get out of no input signal


Hello
The video signal is not getting into your display.
Check the connections on both sides of your cable (display side and display card side). If that didn't help, switch off your PC, make sure youre display card is in its correct place (try taking it out and putting it back again). Switch on your PC and check again. If the problem continues, try replacing your display card.

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Why blinking yellow light and green light infront of cpu


Check if the signal cable for the display is connected and whether there is any kink that may break a wire inside the cable. If the circuit for display inside the computer is broken, most of the time you would hear beeping when turning on the computer.

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So the message you get on your screen is telling you that there is no signal coming from the computer, Screen and computer are different parts, the screen is not your computer.

So this means that your computer is either not connected to your screen or not turned on. if it is turned on and properly connected, you have a hardware problem, take or have someone come over to inspect the pc in person.

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Acer ASpire M1100 shows No Signal on monitor


Any time a monitor says "no signal" that message is originating from the monitor itself, and not from the computer. A monitor in a room by itself with no computer will say "no signal" for a brief time, if it is turned on. So, if you have tried other monitors also with no luck, then the problem is either the video adapter of the computer, or something that is keeping the computer from booting in the first place (power supply, hard drive, memory, motherboard). A power supply can be tested with an inexpensive tool. Everything else needs either a swap out with a known good stand-in, or else an expensive tool to know if it works.Does the fan come on when you turn the computer on? If so, maybe more likely to be the motherboard, hard disk, or memory. If not, more likely to be the power supply.

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1 Answer

I turn on my computer but my monitor says there is no signal


hello, try to unplug the cables on your desktop, then plug it again, sometimes its loose, or sometimes the power supply on your computer is not functioning properly.

Nov 02, 2009 | PC Desktops

1 Answer

No input signal on screen


that usually happens when your pc isn't turned on

Sep 25, 2009 | Acer PC Desktops

1 Answer

Monitor and keyboard won't turn on


A couple of things here:

1) The flashing light and signal message indicate that the monitor is functioning but is not receiving a signal from the computer.

2) The memory that you added is liklely to be incompatible with the computer itself and is preventing the system from booting. The computer will perform a selftest when powered on. Normally when there is a memory issue, the unit will beep. In some cases, there will be no action.

Remove the added memory and attempt to boot the system. If it starts up OK, then the memory you have added is the problem.

Update this if you require additional assistance.

Thanks,
Dan

Apr 15, 2009 | PC Desktops

1 Answer

When i turn my monitor on it is saying that no signal or cable is not connected but ihave evrything connected


The monitor will display that message until the computer starts and outputs a valid signal to the monitor.
If the computer is on and you still get that message, then you may have a bad video card/video circuit or a bad cable between the computer and monitor.

Oct 25, 2008 | PC Desktops

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