Having problems with your IBM ThinkPad R40 2722 Notebook ?

My display gets distorted

\015 When i am normaly working with my IBM thinkpad R40 after a while or so the picture gets distorted & the system gets idle, it sometimes recovers when i refresh it. But most of the time i power off & on. I checked and replaced my Ram but same problem exists. Also a question to IBM TP users does the fan remains on all time once on ? or does it work in intervals ?\302\240When the picture gets distorted: -The hard-disk light does not flicker. -The fan's still on.\015\012\015\012\015\012\015\012Picture:\302\240http://picasaweb.google.co.in/pavithra.shenoi/Miscellaneous?feat=directlink \015

Answers :

There is a simple test to narrow the possibilities. Connect your Thinkpad to a known working monitor using the video out connections at the back base of the computer. Then power on your R40 and see if the distorted screen develops on the known working monitor. If it does then you very likely have the BGA video problem, or Ball Grid Assembly problem and the problem is caused by a video/graphics chip on the motherboard. If you known working screen paired with your R40's base works fine, then you know it is a problem related to the screen itself and will call for either a new inverter or new backlight or new screen depending on further tests. But my bet is that it is the BGA problem which you can learn more about by searching for those terms on the net. There are services that repair ("reball") these BGAs but you have to remove the motherboard from the computer, or pay the service to do so. You can download the HMM, Harware Maintenance Manual, from IBM/Lenovo's site to get an idea of what is involved in opening up your R40 to extract the motherboard. This should help you narrow things down.
Repair Help & Product Troubleshooting for IBM ThinkPad R40 2722 Notebook

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