Question about HP Compaq nw8440 Notebook

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Flickering screen I have 3 yr old hp compaq nw 8440. The screen started flickering every now and then, someone suggested i take it apart and reconnect a cable. what should i do?

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Take it apart and check the wires that power the screen. If moving the lid has any effect, you've likely got an intermittent open circuit in the wiring that goes through the hinge. You can try to figure out which one it is, but those wires are usually too small to splice without micro-miniature tools. I'd search for the best price on a replacement screen for when you get tired of it or it finally goes away completely.

If you can give it a desktop-replacement role where the lid doesn't need to move much anymore or run it off an external monitor permanently, you may be able to extend the useful life at little or no cost. A docking station would be preferable here, since running a direct external monitor over the long term will likely fry the motherboard after a year or so of constant use.

Last choice is to slick the drive, sell it for cheap on ebay, take that money and the money you saved on not buying a screen and put it towards a new one if you want to invest in an upgrade.

Posted on Oct 06, 2009

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Posted on Jan 02, 2017

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How do i fix a flickering screen problem of my HP Compaq 6735s laptop


The flickering could be a sign that your lcd screen is going bad and needs to be replaced. It could also be the video card inside the computer. Isolate the problem by connecting another monitor to the laptop. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the laptop. If the Borrowed monitor displays ok without flickering, then your video card inside the computer is good, but your lcd screen is bad. If the Borrowed monitor flickers like your lcd screen did, then your video card inside the computer is bad.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If so that proves your video card is ok. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

Try tapping the back of the lcd screen's lid to see if the flickering stops, increases or decreases. It might be that the lcd cable located at the top on the back of the lcd screen is loose.Isolate the problem by connecting another monitor to the computer. You'll have to take the lcd apart to get to the video cable on the back of it.

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Hello,

Take the lcd assembly apart, and disconnect and reconnect the ribbon cable on the back of the lcd. Also disconnect and reconnect the other end of that cable. If that doesn't fix it, disconnect and reconnect both cables that go to the inverter board (it's the small circuit board inside the lcd assembly- example in picture below). If still no good, then you probably need a new inverter board. Call HP and get a phone number for one of their parts suppliers. Inverter boards are cheap ($10-$20). Even if it doesn't fix it, it doesn't cost much to try. If still no good, then take it to a service shop.

Hope this helps!

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This is typically caused by a loose cable inside of your screen. I do not suggest tinkering with it as you could possibly damage it more. In case you're feeling brave, here's a guide on how to get to the LCD on your model of laptop:

http://www.insidemylaptop.com/remove-replace-damaged-lcd-screen-hp-g50-g60-g70-notebook/

Again, I don't recommend trying this unless you have some prior experience with this sort of thing. Take it into a certified technician or call Compaq (HP) @ 1-800-HP-INVENT

Good luck!

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dear sir.
"checking disc comes up" this message is hard disk message and it's showing becoust missplase of harddisk thru yr laptop scoket if u know bout laptops u need to plug off then reconnect yr laptop harddisk otherwise contact system wonder near u.. it's help u.

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