Question about HP Compaq nc6220 Notebook

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No screen activity

There is no activity on the monitor at all. Power up, the computer spins the drive, lights are working, but no screen activity. Not even a motherboard boot screen. Is there a way to fix the computer or does it need to be hacked?

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Plug in an external monitor to see if it is booting normally and it is only a screen malfunction.

If you plug in an external monitor and the screen works then it's just a monitor issue.
If the external monitor doesn't light up then try unplugging the power cord, taking out the battery, holding down the power button for a minute and then plugging the AC back in trying to power it up.

If it doesn't power up. Then it's probably a motherboard issue.
I would get an external hard drive enclosure (2.5) and take out the harddrive and plug it into another computer to take the data off.
You can then send in your computer to repair somewhere but for the price, you may as well buy a new one.

Posted on Mar 14, 2008

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Posted on Jan 02, 2017

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The light blinking under the power button is Hard Drive activity which is normal. Do you have the monitor plugged in and switched on?

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The power light will only show whether power is reaching the machine. The important light is the hard drive activity light and perhaps the wireless activity light.

If the power light is all you have you should take your laptop to the computer doctor but if the hard drive light shows activity it would be worth connecting it to a separate monitor and if it then produces a display you might be able to figure out what has happened.

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I always start with seeing if when connecting an external monitor to the Laptops VGA output is the same or different to what you see when just via the Laptops screen. Reason is so that can narrow down to JUST Laptop screen or graphics chip, maybe even OR connection at cable either end, Motherboad or Screen.
Is the Laptop turning on alright i.e. no frying, I assume it has dried out from when it got wet. localised to screen only or possibly inside of Laptop....Lights up with power, fan spins hard drive spins, right? If so try an external monitor.

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When this happened was the laptop overly hot? If the laptop's head got too high it could have shutdown to protect itself. It wouldn't boot until the heat had disparate. Sit you laptop aside for about 30 minutes and see if it will boot then. If it does you might want to check out a cool mat.


http://www.amazon.com/gp/product/B008TO35G0/ref=sr_1_3?ie=UTF8&qid=1358444754&s=pc&sr=1-3

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Try connecting to an external monitor and see if that works. Is the hard drive activity light flashing at all?

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Black screen no POST after installing new Intel motherboard d865dlgl


Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connections and are not faulty or just replace them they might be faulty


make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electical extensions


even something as small as an electrical fan and its lead can cause this problem or just replace them they could be faulty a computer needs all electrical power and data to continue through every working device and to have an end so any faulty leads will end up with a computer error


make sure your graphics card is securely seated with no dust built up or in the socket

if you remove your graphics check the socket to make sure its dust free

restart your computer then reinstall it this should activate found new hardware wizard


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un plug the monitor cables power cord everything turn off the computer the reconnect everything power back up turn on the monitor should work then

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My dell e173fp monitor has quit working. The power light continually blinks when power is applied, even without having to turn it on. An identical substitute monitor works fine on the computer system. ...


Is the power blinking amber? This is a DPMS power-save mode. With the computer disconnected and the monitor on, do you see the colored self-test block floating around? With the monitor on, computer connected, and you still have no image displayed, take a bright flashlight and examine the screen closely. If you can see a very dim display in the screen, the fluorescent tubes which light up the *background* and provide the vivid picture(sort of like a how an x-ray picture viewer works) are defective. The power light blinking may be the power supply sensing the non-functioning tubes or it could just be bad. If your display is under warranty, replace it. If not, trying to have the monitor repaired for this type of problem is almost as costly as a new one--and there won't be an active warranty on anything else that might fail. Hope I helped you.---Rick

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1 Answer

Screen does not turn on but green light is on.


Green light indicates the monitor is getting power. Nothing coming up on the screen indicates, No Signal.

No signal from the computer. This means the computer itself isn't working.

A bad power supply in the computer can cause this. A bad power supply is the leading cause of desktop computer failure. It is replaceable, and can be done by the owner relatively easy.

You may have a computer tower that the Power light comes on, you hear fan/s spinning, (Including the Power Supply fan), and it sounds like the harddrive is running.

ALL the lights in your computer use less than 1 Watt.
EACH fan uses 2 to 3 Watts.
A harddrive sitting there spinning in an endless loop, consumes about 2 to 3 Watts.

A Processor uses 51 to 125 Watts. Depends on what Processor it is.

A weak Power Supply will have enough power for lights, fans, and that harddrive sitting there spinning.
It won't have enough power to turn on the Processor.

[No processor operating, then the harddrive sits there spinning in an endless loop, because there is no processor to find the boot sector]

For a test, connect your monitor to a know good computer. See if it works.
Now connect that other monitor to your computer.

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Dead compaq laptop, no boot activity


Larnold..Sounding like you need to check the LCD Power Inverter Circuit board.. this is located inside the screen a long rectangular circuit board that sends power to the screen backlight & Display Panel.. Could also be a Bad Backlight.. Try Booting it.. Hold it up to a light and look closely at the screen.. If you see a faint image but no light, it is the Backlight, if Just Black No Activity then its most likely the Power Inverter, OR a Bad Video Card.. You can test the VIDEO by Connecting the laptop to a Computer Monitor or similar with the laptops VGA Serial port.. then Use your function Key and Switch to 2nd Display.....(one of your F keys.. ).. If it Shows up on another screen, Its a Display problem and not the video card... Hope This Helps alittle.. Cheers

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