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No video on boot up.

I get no video on boot up. monitor says "check pc or cable, monitor is working"

Posted by bikerman1941 on


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A nothjer cause could be... a bent pin on the plug in that plugs to the video card.

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Posted on Jan 04, 2008



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Check for the AGP socket for dry soldering i f u are using built in display card the problem presits with display IC in the mother board contat a chip level service center

Posted on Nov 29, 2007


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After boting monitior is getting shut down

When the monitor shuts down, is the activity light on the monitor blinking yellow? or staying yellow constant? Have you tested another monitor? When does the monitor shutdown exactly what is the computer doing at the time the monitor shuts down?

1. Blinking yellow means failing monitor. Not all monitors will exhibit this behavior. For example my Acer Monitor blinks with a blue light when no video input is detected. It doesn't always mean the monitor is bad, but may indicate the video card is failing. Also check and/or replace the video cables

2. Solid yellow means no video input detected Not all monitors will exhibit this behavior. For example my Acer Monitor blinks with a blue light when no video input is detected. It doesn't always mean the monitor is bad, but may indicate the video card is failing. Also check and/or replace the video cables

3. Testing another monitor tells you if the video card is failing. If another monitor works, the problem is your old monitor failing, if a new monitor doesn't work, then the problem is more than likely a failing video card.

4. It is rare but sometimes the Video PCI slots can go bad, while another may work on the same motherboard. This further indicates if it's a motherboard issue, and not the monitor or the video card. Just change the PCI slots the video card is plugged in to and see if it works.

5. Power issues can cause this video issue as well; For example if your PSU is not strong enough to support your video card, it may exhibit no input detected issues past a certain point in the boot process. This is due to lack of power being supplied to the video card. MOST video cards have a warning of sorts if this is a case, but some do not. This issue is more common with higher end gaming video cards and/or lower end power supplies.

The best way to test this is to disconnect ALL devices from the motherboard that require power; For example; CD drives, Hard drives, USB devices that may be plugged in other than keyboards/mice. Only boot the PC with the video card, RAM, and CPU installed. If you get video start attaching 1 device at a time and doing a fresh boot with each device connected. So if the PC boots fine with video on the monitor when the CD Drive is plugged in... it's not the CD Drive causing it. Then hook up the hard drive WITH the CD drive, and see if the PC boots with video then... If it does not, you can infer a power issue might be causing the problem.

Another issue that may effect the video card directly pertaining to power issues are; Try swapping the power cables to the video card with a different power cable. That is to say a power cable coming from the Power Supply that isn't connected to anything or in use by anything else. It is possible a power cable line is bad and/or not working in which case it's a Power Supply issue.

In some cases; This test will be negative on all accounts; At this point, It may be your RAM/CPU causing the issue; Try reseating the ram, that is to say uninstall the ram physically, use a cloth to clean the gold prongs on the ram sticks, and place the ram sticks back into the motherboard; See if it boots up with video then. If it does not; Try removing ram sticks 1 or 2 at a time as required and checking again. This helps determine if it's a specific ram stick causing the problem.

6. If the video STILL is not showing up you will want to check the following.

Check the motherboard for blown capacitors; They will appear in the following forms; Clearly bubbled tops on the capacitors; Exploded tops or yellow crystalized liquid leaking from one or more of the capacitors (like battery acid). This causes a HUGE list of random issues that are symptomatic of power issues. In this case a (Failing Motherboard) Most common on intel and dell motherboards especially on older hardware/PC's.

The CPU is the hardest thing to detect if it's failing, and is rarely the cause, if common sense and care are taken when handling a CPU.

At this point if you still can't figure out what's causing the problem; Replacing the motherboard or monitor is recommended. Monitor if you do not have another monitor to test. Or motherboard if you've exhausted all other troubleshooting steps.

I realize it's a lengthy description, but your description of the problem wasn't exactly specific so I wanted to be thorough and cover all the basis that could cause this problem.

Hope this helps.

Power comes on fan runs hard drive spins but monitor says : monitor self test.. your monitor is working correctly... check computer power and monitor cable... it was working fine the night before ...

try and boot in safe mode and check the frequency, it should be 60 htz if nothing it's possible your video card has gone out, do you have a second monitor to test?

If you need further help, reach me via phone at


Monitor will not boot up is reading no input signal

So either the computer isn't generating a video signal, the cable isn't carrying the signal to the monitor, or else the monitor isn't capable of receiving a video signal.To test this, first try a video cable that you know is good, in case your cable is bad, If it works with the other cable, the problem was your original video cable. If it still doesn't work, put your original cable back, and hook another computer up to the monitor. If the monitor makes the same message, the problem is with the monitor. If the other computer works when connected to this monitor, your problem was that the original computer isn't booting (which could be due to several reasons I will list below), or the video adapter is broken.Possible reasons for the computer not booting: bad power supply, bad power button, bad hard drive, bad memory, bad motherboard component. If you determine that it isn't booting, unplug everything except the keyboard mouse monitor and power cord, to see if that makes a difference. If it boots after that, something you unplugged was causing the problem, plug them each back in one by one, rebooting in between, and when it stops booting properly, the last thing you plugged in is causing the problem.

I have a e machines desktop that will not boot up. I turn it on and the monitor says no signal. I think it might be stuck in hibernation mode. The fans on the tower start but thats about it. If some one...

No Signal means you Display or Monitor is not getting signal from Video Card.
In this case:
1. Check if all the cable are properly plugged in. Check on both monitor and computer back. 2. Check if cable is not broken. 3. Try unplugging cables and plug them back. 4. Try some other monitor or cable. 5. If cables are fine than problem could be with your video card.
As you are getting No Signal that mean your monitor is working fine. Problem is either with cable or video card.

Video monitor says there is no input and to check the cable connections. connections and cable are good. Does that mean the video card has probably gone kaput?

It may mean that the video card is bad , but not always the case. Start with borrowing a known good monitor from a working pc and then test the following ... video card, memory chips ect. Does it show screen ever or only goes away in the middle of boot up? try booting in safe mode F8 key if it happenes in the middle of boot up.

A6300f won't boot. Monitor says 'no signal'

  1. You either have a dead video card, a bad video card slot, or a bad cable connection, or a faulty monitor.
  2. 1. plug in the monitor with the same cable to another pc to see if it works.
  3. Plug in the video card into another pc to see if it works.
  4. Plug in another video card into the video slot on your motherboard to see if it works.
Good luck

Dell E153FP monitor won't display any video from system (Dell GX260). My e173FP monitor works fine. E153FP powers up, runs Self Test Feature Test fine, menus all seem OK. Tried Factory Reset... still no...

You probably have tried this, but make sure monitor is set to correct display... i.e., Analog or Digital

Also, try starting in safe mode and verify Monitor is able to handle the display settings resolution

I’m happy to help further over the phone at


Whenever i turn on my pc it says no input signal.i dont know whats wrong with it the motherboard or the hard drive?

When you power up the cpu check your smps is working?
Then check num lock key on key bord if it is on and off when you press numlock then your cpu gives dispaly to monitor ok.
but if it not constant on or off no change when you press num lock key then you have to open cpu cabinet.
Refix RAM memory .
Clean dust from motherbord chipset.
Pull out cmos cell for 15 minutes so bios settings are reset to defaults.
then check.
refix all connection to mothebord like ATX power supply from smps.

My Dell Optiplex GX1 will not boot. The Monitor shows no signal.

check whether ur ram is working or not. remove the cpu side door and remove the ram from the ram slot and clean it using a eraser gently and fix again it back and power ur pc on and check it

Insignia D300 I donot get

Might want to check your VGA or Digital monitor cable also, they have been known to go bad or come loose.
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