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My monitor isnt working

I put in a video card and now its not working so i took it out and its still not working i think the memory was turned off how do i turn it on

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Re: my monitor isnt working

Motherboard Setup Defult monitor setting.
Or set the defalt for eveithing.

Posted on Nov 12, 2007

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Acer ax3400g does not boot and light blinks twice

Either your memory, lcd monitor or the video card is bad.

Check the Memory by steps below:

Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.
I'm thinking that it might be your monitor because if the monitor was working and the video card was bad, you would get a No Signal message appearing on your screen.
Try another monitor on the computer. Borrow a monitor from a friend, family member, neighbor or co-worker and see if it works. If it does then your monitor needs to be replaced. If it does not work, then you've got a video card issue.

Check Video Card below:
If nothing ever posts to the screen then more than likely your video card is bad. Go purchase a Video Card that will fit into one of your open PCI Slots.

May 12, 2012 | Acer Aspire AM1640-U1401A Desktop PC

1 Answer

Hi - recently I've been getting a no signal message on my monitor - system is still runnung but no video. I have checked cables - all are OK - The computer is a Gateway DX4300

Three major components usually is causing this kind of problem. One is the memory card. Two the video card . and lastly worst is the motherboard. Check and clean your memory card first then put it back to its place of slot. Start your computer. If you hear one beep but still no pictures, the problem lies in your video card. If there's still no beep sound and picture, and you think your memory card is good, try to clean your video card, then start your computer. If there is still no picture, and you think your video card is good, then you have a problem with your motherboard. Indication that your cpu is working were, beeping sounds, lead lights blinking or changing sequence is present. If it is present, your monitor has a defect an needs to be replaced.But if none of this is present, we have a motherboard problem.

Sep 04, 2011 | Gateway DX4300-03 Desktop PC

1 Answer

My hp a805n powers on like normal but my monitor is not coming on? i checked my monitor on another computer and it works perfect? whats the reason that my output to the monitor isnt working? i dont think...

This could be an issue with the integrated graphics card( This computer has integrated graphics card) or faulty motherboard.
In order to check he motherboard follow the the steps below:
1)open the computer tower by removing the side panel.
2)Remove all the memory chips(RAM) from the computer.
3)Try to turn the computer on.
4)If it is beeping then the motherboard is fine.
5)If you don't hear any beep motherboard is failed.
****Even if the motherboard is working as there is an issue with the integrated graphics you need to replace the motherboard.

Aug 21, 2010 | HP Pavilion a805n (PS519AA) PC Desktop

1 Answer

Video on my HP Pavilion a1540n is broken

Yes you put in the video card and the default is lowest resolution and is usable without a driver, install driver then reboot and you have your new video card to set up the way you want.

May 15, 2010 | HP Pavilion a1540n PC Desktop

1 Answer

I took pc into office depot to get it checked as monitor has no signal display, even after buying new monitor. They got the same thing, said need a video card, after purchasing it I put it in and still has...

there is a possibilty that the pci slot isnt working on your motherboard. try a different pci slot with the new video card.If all are occupied then swap one to test. if your using agp, well you only have one agp slot so go to pci. just use generic first dont get anything expensive when your testing.

Nov 15, 2009 | HP Compaq Presario SR2170NX (RK549AA#ABA)...

1 Answer

My monitor on my Dell will not recognize the video card. The video card is new and did work when first installed. I tried putting a new memory card in some weeks ago, it didn't fit, so I put the old memory...

GO to control panel - system - device manager - display and see if your video card is shown then try to reinstall drives or the latest drivers

Oct 14, 2009 | PC Desktops

1 Answer


If you buy new PCI video card there is alway CD software attached on this,you should claim for this because it was the driver for your new video card ,without it your PC will have an abrormal operation .Are you sure it was your video card?you can consider also your memory card,Wiht out hardisk,CD room,floopy your computer will run it can open your monitor configuring the cmos and bios.Try on this one disconnect hardisk,cd room,floopy then detouched your memory card clean using pencil eraser the sloted terminal of your memory card,also your video card try to clean terminal by pencil eraser.Then put back memory and video card again if the monitor work.If ok put back again the cdroom,hardisk, and floopy.If not ok Isolate checking the memory and video card also the processor.

Mar 14, 2009 | Dell Dimension 2400 PC Desktop

1 Answer

Dimension 4700 wont light up the monitor.

Hi Cactus,

My name is ArmyMason, let me get this straight. You have a Dell Dimension 4700 and the Monitor isnt working with the PC? This could be one of two things. Either the monitor is bad, to test this I would connect it to some other computer to verify its not the monitor. It could be the video card. According to Dell it the light combo you gave me indicates their is an issue with the floppy or hard drive and you should check to see if all the cables are correctly seated on the motherboard and on the Drives.

I really think it could be an issue with the video card. To resolve this I would consider purchasing a new card or rip one out of an old know good computer to see if that is the issue.


Feb 23, 2009 | Dell Dimension 4700 PC Desktop

3 Answers

Blank, black screen computer turns on, but the screen remains black. can hear the cpu running but cant see anything

Has this been happening on a regular basis? When did this start? If you have a separate video card are you capable of disconnecting it from the motherboard and attaching the monitor to the built in video?

Also as strange as this seems, I have seen some instances of a blank screen where motherboard ram not seated properly can lead to a no post situation.

Aug 17, 2008 | Toshiba PC Desktops

4 Answers

I have a Compaq Desktop computer. Model# DPS-250RB A. The computer was working fine the other day, Brought it to my house and tried hooking it up to a monitor and the monitor wont recieve signal. Not sure...


try this,
1.) unplug the system
2.) remove the memory
3.) remove the mainboard battery(cmos battery)
4.) press the power button 5 times
5.) replace the battery
6.) replace the rams
7.) boot it up
8.) enter setup
9.) load defaults then save and exit

if that works then try putting back in the graphics cardm you may need to repeat steps 1 - 9 after installing the graphics card. and pls insure the monitor is connected to the graphics card.

Jul 22, 2008 | Compaq PC Desktops

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