Having problems with your IBM ThinkPad T42 Notebook ?

Black screen t42 laptop while booting

\015 Black screen t42 laptophold down press left side palmrest while black, distorted graphics are displayed-- temp.replacing lcd will not fix this because this is motherboard prob, correct?\015

Answers :

To be sure that this is not a problem related to the laptop's LCD display or its internal connections, try to connect an external monitor & toggle between the internal LCD display and the external CRT display by pressing the Fn and F7 keys simultaneously on the ThinkPad keyboard. If the same distorted graphics appear on the external monitor, then you are sure that the problem is with the graphics circuitry or the motherboard rather than the LCD display. From your description of the problem, it seems that either a component on the motherboard needs to be resoldered, or there is a broken circuit track on the motherboard. When you press the left-side palm rest, the motherboard flexes, & temporarily connects the loose or broken connection. However, since the temporary connection is not perfect, the displayed graphics are distorted & only temporary.
Another possibility might be a loose internal connection. Sometimes the flex cables connecting the different laptop components get loose causing similar problems. Disassemble the laptop & check all internal connections between components.
No, this is a video card problem. It has most likely burned up or overheated. Replace the video/graphics card and reinstall drivers and everything will go back to normal
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