No signal on screen

May 23, 2013 at 09:37:24
Specs: 6500, Hp
I'm getting a no signal on my monitor. Need help! I have tried restarting it a few times. Checked the cords, removed cover, removed ram and replaced it. Still did not work. Removed ram again and wiped it, clean, still did not work. I'm not sure what the problem is. Pc and fans are running good. I have an hp pavilion a6500f, graphics by nvidia, windows vista, intel pentium dual cord inside. Thats what all the sticker on pc say.

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#1
May 23, 2013 at 12:37:08
Is that all you ever see on the screen?

Best try the monitor on another computer (or another one on yours) just to eliminate it from the equation. If it is not a monitor plug and socket issue then it could be that the display card or module has died.

Always pop back and let us know the outcome - thanks


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#2
May 23, 2013 at 15:09:28
When I turn on the computer the monitor stays black, does nothing. When I click on the buttons on the monitor, it just says (monitor going to sleep) for 3 seconds. I don't have another computer to try the screen. Also, how can I locate the display card or module? Is there a video on how to fix them? Where can I buy them locally?

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#3
May 23, 2013 at 16:44:16
When you power on the computer does it sound as if it is booting? Usually there are familiar noises. In particular can you see the HD light flashing (near to the start button at the top for many HP's)?

If the HD light is NOT flashing then it could be the PSU (or even the motherboard) has failed. If it IS flashing normally then we're back to the most likely culprit being the video hardware - not uncommon on the a6500f. Mostly HP's have an inbuilt display module which is not replaceable. If this is the problem then the cheapest way around it is to add an additional display card with its own monitor socket. I'm from the UK so, assuming you are in the USA, I can't comment on where to get one. Keep watching because someone else might join us.

Always pop back and let us know the outcome - thanks


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#4
May 23, 2013 at 17:50:43
Ok I checked, it's not flashing, it just stays on. At first it does make sounds, as if processing but the power button is not flashing.

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#5
May 23, 2013 at 20:58:31
Just because fans and drives spin up and LED's flash doesn't mean the computer is working. It just means the PSU is providing 5 and 12 volts to the computer's peripherals. As Derek says, the PSU could still be bad, or the motherboard, or both.

Did anything happen to it or did you make any hardware changes between the last time it worked OK and the first time it didn't?

DAVEINCAPS - Made with REAL high fructose corn syrup.


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#6
May 24, 2013 at 07:28:34
Got it...and three days before it stopped working, it had updates from windows, and I had scanned it for virus from AVG and scan it with windows defender.
Oh, and we've had restarted it to it's original settings about 3 times already, last time was last year.

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#7
May 24, 2013 at 09:35:12
Would you be able to take the monitor to a friend's house and try it on his PC? That would still confirm whether the monitor is good. If it is, then the problem is probably your PC's power supply or video card.

1 Corinthians 15:3-4


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#8
May 24, 2013 at 11:24:31
Hard to relate your "no signal" symptoms to Windows Update - assuming you never see anything but this on the screen. As said above, eliminating the monitor from the equation is the first thing to do. When you get "no signal" it can be down to quite a number of possibilities.

If it is not booting up (and I accept that is not easy to prove) then it is unlikely to be the display module or card. We are not in the position to be certain but from what you have said it is not booting normally, so PSU is quite likely.

Better clarify that Display card and Video card are alternative names for the same thing. Most HP's usually come with an inbuilt module rather than an addon card - although a card can be added instead of using the module.

Sorry but without having "hands on" we can only generalize and mention items which have been known to fail fairly often. You might have to resort to taking it for repair.

Always pop back and let us know the outcome - thanks


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#9
May 24, 2013 at 11:44:27
Are you using an older CRT monitor that may take a little longer to warm up before an image shows? If so, maybe your computer is going through the posting process and starting to boot windows before your monitor is able to show anything. If that's the case then maybe the updates could be at fault.

Try hitting PAUSE a few seconds after you turn it on and see if the logo oir posting screen comes up. Or start tapping F8 and see if you get the OS boot menu when the monitor warms up. If you do get an image you might see if you can boot to safe mode and do a system restore.

DAVEINCAPS - Made with REAL high fructose corn syrup.


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#10
May 24, 2013 at 15:06:32
Ok, thanks Derek.

@ daveincaps, I bought both monitor and computer at the same time. I tried your last instructions and did not work.


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#11
May 24, 2013 at 15:09:24
Aha, I might have misunderstood something. When you said you are getting "no signal" I assumed you were getting words to that effect on the screen. Did you simply mean that you never see anything at all on the screen?

Always pop back and let us know the outcome - thanks


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#12
May 24, 2013 at 15:54:52
When I turn on the computer nothing turns on, on the monitor. When I click on any of the buttons on monitor, the power button on top of monitor turns blue, then a message that only last 3 seconds appears(monitor going to sleep). Then power button on top of monitor goes back to orange color.

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#13
May 24, 2013 at 16:16:26
Most likely the monitor itself is OK if it is showing the "going to sleep" message.

Always pop back and let us know the outcome - thanks


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#14
May 26, 2013 at 17:59:36
Ok, we put in a graphics card and did not work, replace the battery and did not work. We notice that the little orange light that would flash right under the blue power button on computer does not light on. We were told that little light is for the hard drive. That it went bad. Is that the reason the monitor will not work??

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#15
May 26, 2013 at 18:24:44
Not unless the hard drive failed in such a way that it affected the motherboard. Usually it doesn't. If you're uncertain you can always temporarily disconnect the hard drive and see if you get a posting screen when you turn on the computer.

You may want to temporarily disconnect all the drives and remove all the cards (except video if applicable) and see if you get the posting screen.

But I suspect either the power supply, motherboard or both are bad.

DAVEINCAPS - Made with REAL high fructose corn syrup.


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#16
May 26, 2013 at 18:37:34
Ok, will try....now... What does that little orange light mean? Is it what we were told? I do remember now, that when the computer was turned on, it would flash and the power button would also flash.

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#17
May 26, 2013 at 19:00:22
The little orange light flashing denotes activity on the HD. It should do so when booting up and when running programs.

Always pop back and let us know the outcome - thanks


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#18
May 28, 2013 at 07:44:27
Hey guys, we decided to just get a new computer. Thanks for your help.

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#19
May 28, 2013 at 08:24:04
OK, that's always the ultimate option. Thanks for popping back to let us know.

Always pop back and let us know the outcome - thanks


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