Dell starts with green vertical lines through all LCD

I have a Inspiron 9400/E1705 with a nvidia geforce go 7800, when i start the system (DELL logo) appears green vertical lines through all lcd display, when i tried to test the 3D the display die and then a blue screen say the hardware is something wrong and the driver, i’m not sure if the card is bad, because it works for a time and then failed, i tried to reinstall O.S.(windowsXP) and drivers and it works for a while and then fail so now i have uninstalled the nvidia driver when i started windows the display is good with no lines but poor resolution due to video card is uninstalled.

If you see vertical lines as soon as you turn on the laptop and they run through the Dell logo, most likely this is a hardware related problem and this problem is not related to the operating system or the video card driver.
Test your laptop with an external monitor. Attach the monitor to the laptop, turn on the laptop and press Fn+F8 to switch the video signal to the external screen. If you see the same green vertical lines on the external monitor, most likely you have a problem with the video card.

53 Responses

  1. David Ashby

    Hi I have just brought a Del Inspiron 9400. When I booted it up I got a black screen covered in white hieroglyphics, it carried on booting and then the whole screen was covered in horizontal bands of dots and at times vertical bands of dots. I’d seen the thing about cooking the graphics card mine is a GForce Go 7900GS and it obviously works, but being a novice was apprehensive about trying it, so looked further afield. Some one said don’t go buying new graphics cards which are expensive as they thought it was a overheating problem, but instead try the free program i8kfan I found this and tried to install it but windows said that it was not digitally signed and would not allow it to be loaded, but if when booting you press f8 a list appears and you can override this digitally signing thing about three quarters of the way down this list. Anyway I did this and was able to open the small program and up near the top left, it allows you to run your fans at full power which I did (by the way Del apparently set the temperature of the graphics card at 70degrees which is far too high the program sets it at around 50degrees)when the fans where going full tilt I was looking at the rest of the program when I suddenly realised that a sizeable square on the screen had become completely clear of dots,(getting exciting now isn’t it)and while I was looking at that the rest of the screen cleared as well. Well that was the symptom treated but found at after stripping down the laptop (scary) that the problem was that both the fans were well clarted up, well not the fans really but the Umm! fins that cool the cpu and the graphics card (not the vents you can see on the outside)So I hoovered them out (plastic head) and cleaned them with an old tooth brush, put the whole lot back together and it’s been going for over a week now no problems and no cost.
    P.S. Someone said you should clean out your fans about every 18 months.
    Hope this all helps someone it certainly did me.

  2. It_Works

    Just performed the 10 minute baking method on a Dell M90. Worked great. Clients laptop is back up and running. No BSOD, no lines.


  3. my dell precision m90 has same problem of dots and then black screen comes after windows sign.i baked the graphic card at 200 C for 10 mins.after cooling when i pick the graphic card from oven two skin color components d solded(dropped from gpu) and then i resold them on gpu with solder.after that when i put back it in laptop .the latop won’t start only the power light blinks continously.the system does not boot .kindly help in order to resolve this issue.



Leave a Reply