Updating ram in ibm thinkpad 600x
Sometimes these lines are red, sometimes they are blue, sometimes they become wider and change color to white. On some laptops the video card is integrated into the system board, on other models it’s a separate module.In this example, the vertical lines were caused by a failed video memory on the system board.To fix the problem, I’ll have to replace the board. Reseating and replacing the video cable didn’t help.(We do not have equipment to replace the memory module itself). Yes, for some reason I wasn’t able to reproduce the problem on my test LCD screen.A video output on an external screen would be perfect, without any lines.Unfortunately, these lines indicate a screen problem.When your laptop displays inverted colors as on the picture above, this is an indication of a bad screen. On the image below you see a white band running from the top of the screen to the bottom.
I guess it happened because the system board had some kind of intermittent problem with onboard video or video connector.I plan to ad more examples as soon as I get new pictures.If you have your own example (and know how to fix it) please let me know and I’ll post it too.I’ve tested the video memory with Microscope utility and it failed the test.In Toshiba Satellite 5205 the video memory is integrated into the system board. As soon as I turned on the laptop, I was getting these reddish marks on the LCD screen but not on the external monitor.
Here’s a picture of Satellite M55 LCD screen I made this morning.